Definitions used with Science and Mathematics
( Last updated on 01 October 2012 23:44

(CHEMICALS ETC.) (WORKSHEETS)

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= (Symbol meaning equal, or is equal to) 

+ (Plus sign) (Used to indicate addition) (Charge on a proton)

(Symbol used to indicate plus or minus) (Often used for tolerances) 

- (Negative sign) (Used to indicate subtraction) 

* (Symbol used for multiplication in computer programming)

** (Symbol sometimes used to indicate raised to a power especially in some computer programming languages like Fortran.)

  (Symbol meaning divided by)

/ (Symbol used for division and for fractions)

^ (Symbol used to indicate raising a number to a power) (2^3 means 23)

α (Alpha) (Symbol used for angular acceleration)

Σ (Sigma) (Symbol used to indicate the sum of)

(Symbol used to indicate the unit of length called the angstrom)

(mu)(Symbol used for the coefficient of friction) (Also used to indicate micro or 10-6

k (mu sub k) (Symbol used for the coefficient of kinetic friction)

s (mu sub s) (Symbol used for the coefficient of static friction)

# (number sign) (Symbol used to mean number) (Also used to indicate pounds)

% (percent sign) (Symbol used to indicate percent, or 1/100)

π (pi) (Symbol used for pi or 3.1415926535897932384626433832795) (From Windows calculator) 

π2 (pi squared) (Symbol used for 9.8696044010893586188344909998762)

# (pound sign) (Symbol used to mean number) (Also used to indicate pounds)

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0 (Symbol used for cipher or zero) 

0Ko (Absolute zero)

0.000,000,000,000,000,000,000,000,000,000,911 kg =  9.11 x 10-31 kg (Mass of an electron)

0.000,000,000,000,000,000,000,000,001,672,65 kg = 1.67265 x 10-27 kg (Mass of a proton)

0.000,000,000,000,000,000,000,000,001,674,95 kg = 1.67495 x 10-27 kg (Mass of a neutron)

0.000,000,000,000,000,000,160 C = 1.60 x 10-19C  (Charge on a single proton) (Symbol is e)

0.000,000,000,066,700 =  6.67 x 10-11 N-m2/kg2 (Universal gravitational constant) (Symbol is G)

0 (Zero) (AKA cipher) (Electrical charge on a neutron) 

0.5 (1/2) (Sine of 30 degrees) (Cosine of 60 degrees)

0.6180339887498948482045868343656 (1/Golden ratio)

1 (one) (Symbol used for unity) 

1.4142135623730950488016887242097 (This is the approximate square root of 2)

1.6180339887498948482045868343656 (The golden ratio) which is the same as ((1 + 50.5)/(2))

1.7320508075688772935274463415059 (This is the square root of 3)

2 (two) (21) (Base of the binary number system) (pair) 

2 basic principles of accounting 

2.7182818284590452353602874713527 (e) (Base of the natural logarithm)

3.1415926535897932384626433832795 (Pi)

3.16227766 (Square root of 10)

4 (four) (22) (Number of bits in a nibble)

5 miles (Length of the camptown racetrack)

6 (Number of surfaces on a cube)

7 (seven)  (491/2)

8 (23) (Base of the octal number system) (Number of bits in a byte) 

8 classes of words 

9 (32) (811/2)

9.80 m/s2 (Value usually used for the acceleration due to gravity on Earth)

9.8696044010893586188344909998762 (This is π2 )

10 (Base of the decimal number system) 

12 

16 (24) (Base of the hexadecimal number system) 

25 (52)

27 (33)

32 (25

37 (Interesting information about the number 37) 

42 

64 (26)

81 (34) (92)

90o (Degrees in a right angle)

100 (102)

125 (53)

128 (27

144 (Number in a gross) (122)

180o (Sum of the angles of a triangle in degrees)

256 (28) (44) (162)

360o (Degrees in a circle)

400 (Gradients in a circle)

512 (29

555 Timer (Very common IC Timing chip)

1,000 = (103)

1,024 =  (210) (1 kilo in computer terminology)

2048 (211)

4096 (212) or (46) or (163) or (642)

8,192 (213)

10,000 (104) or (1002)

65,536 (216) or (48) or (164

100,000 (105)

186,000 miles/hour (Common value for the speed of light)

1,000,000 (106) or (1003) or (10002)

1,048,576 (220) (1 meg in computer terminology)

1,740,000 m = 1.74 x106 m (Accepted radius of the moon) (Symbol is RM)

6,380,000 m = 6.38 x106 m (Accepted radius of the Earth) (Symbol is RE)

300,000,000 m/s = 3.00x108 m/s (Common value for the speed of light)

1,073,741,824 (230) (I gig in computer terminology) 

8,987,500,000 N-m2/C2  = 8.9875x109 N-m2/C2  (Coulomb constant with symbol  of ke)

1,099,511,627,776 (240

6,250,000,000,000,000,000 = 6.25 x 1018 (Number of protons or electrons for a charge of 1 Coulomb)

73,600,000,000,000,000,000,000 kg = 7.36 x1022 kg (Accepted value for mass of the Moon) (Symbol is MM)

602,000,000,000,000,000,000,000 = 6.02 x1023 (Number of items in 1 mole)

5,980,000,000,000,000,000,000,000 kg = 5.98x1024 kg (Accepted value for mass of the Earth) (Symbol is ME)

10,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000. (10100) (google)

A   T   U   W   X    

a (Symbol used to indicate acceleration)

Acrobat 

Aberrations 

Absolute altitude 

Absolute deviation 

Absolute temperature 

Absolute value 

Absolute zero 

Absorption spectrum 

Abstract

Abstract Number 

AC (Alternating Current Electricity)

Acceleration 

Acceleration due to gravity 

Acceleration due to gravity at various distances above the Earth 

Acceleration due to gravity at various latitudes on Earth (PDF)

Acceleration due to gravity on Earth 

Acceleration due to gravity on various heavenly bodies 

Accounting, Fundamental equation of 

Accounting, Two basic principles of 

Accuracy  

Acid 

Acre 

Addition 

Adhesion   

Adiabatic process 

Adjacent side of a triangle 

Adjective 

Adobe Acrobat Reader 

Adverb 

Air 

Air filter 

Air resistance 

Aircraft 

Airplane 

Airport 

AKA (Also Known As)

Albumen 

Algebra

Algebra Worksheets 

Alkaline 

Alloy 

Alnico 

Alpha particle 

Alternating current 

Altitude 

Altitude (Effect of altitude on acceleration due to gravity on Earth) 

Amanda 

Amber 

Ambient temperature 

Ammeter 

Amorphous solid

Ampere 

AMU 

Anaerobic 

Anaerobic bacteria 

Aneroid 

Aneroid barometer 

Aneurysm 

Angle 

Angle Conversion Worksheets 

Angle of declination 

Angle of depression 

Angle of elevation

Angle of incidence 

Angle of inclination 

Angle of reflection 

Angle of refraction 

Angle, Acute

Angle, Degree of 

Angle, Minute of  

Angle, Right 

Angle, Second of 

Angstrom (Unit of length equal to 10-10 m) (The symbol is )

Angular acceleration 

Angular displacement 

Angular impulse 

Angular momentum 

Angular motion

Angular Motion (Rotary) Worksheets Main Page  

Angular velocity 

Anode  

Antarctic circle 

Antarctica 

Antenna 

Anti-bottom antiquark

Anti-charmed antiquark

Anti-down antiquark 

Anti-up antiquark 

Anti-strange antiquark 

Anti-top antiquark 

Antifreeze 

Antilogarithm 

Antimatter 

Antiparticles 

Aperture 

Aphelion 

Arabic Notation 

Arccosine 

Arcsine 

Arch 

Archimedes 

Archimedes's claw 

Archimedes's principle 

Archimedes's screw

Arctangent 

Arctic 

Arctic circle 

Area 

Area of a circle  

Area of a rectangle 

Area of a square 

Area of a triangle 

Area of a triangle using Heron's Formula 

Area of land on the earth 

Area of ocean on the earth 

Arithmetic (One of the seven liberal arts

Arithmetic progression 

Arithmetic sequence 

Arithmetic Worksheets 

Arm 

Armature 

Aristarchus 

Aristotle 

Aristotle's four basic elements 

Ash 

Astrology 

Astronaut 

Astronomical Unit (A.U.) 

Astronomy  (One of the seven liberal arts

Asymptote 

ATF (Automatic Transmission Fluid)

Atmospheric pressure, normal 

Atom 

Atomic bomb 

Atomic mass unit ( u ) 

Atomic number  

Atto (Metric prefix of 10-18)

A. U. (Astronomical unit) 

Automatic transmission

Automatic transmission fluid 

Automobile

Automobile safety in lightning storm 

Average 

Average acceleration 

Average speed 

Average velocity 

Avogadro, Amedeo 

Avogadro's number 

Axis

Axis of rotation 

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B (Symbol used to represent the buoyant force)

B-17 US warplane "Flying Fortress"

B-25 US warplane "Mitchell" 

B-26 US warplane "Marauder"

B-29

B-52 US warplane "Stratofortress"

Babbitt 

Bakelite 

Baker's Dozen 

Ball

Ball bearing 

Balmer series 

Barleycorn (Ancient UK unit of length equal to 1/3 inch) 

Banjo

Banjo Bolt 

Bar magnet 

Barometer 

Barometric pressure 

Baryon number 

Baryons 

Base (Chemistry)

Base (Math)

Base of transistor

Baseball bat 

Basic principles of accounting 

Battery 

Battery acid 

Battery terminal 

Battery tester 

Battleship (BB)

Beam (Part of a boat)

Bearing

Bearing, ball

Bearing, roller

Bearing, tapered roller

Beat (Sound)

Becquerel (Bq) 

Benjamin Franklin 

Bernoulli, Daniel 

Bernoulli's equation 

Beta particle 

Biconcave lens 

Biconvex lens 

Bigfoot 

Billy Bob 

Binomial

Binomial Expansion 

Bisecting an angle 

Black 

Black body 

Black body radiation 

Block and tackle 

Board 

Board foot   

Boat

Boat terminology 

Boiling point 

Boiling point of water 

Bolt 

Boltzmann's constant 

Bond 

Bottle

Bottle Jack 

Bottom quark 

Bottom tap 

Bottomness 

Bow (Front part of a boat)

Boyle, Robert 

Boyle's law 

Bq 

Bragg's law 

Brahe, Tycho 

Brake 

Brake fluid 

Brake line 

Braze

Brazing

Brazing rod 

Break 

Breaking point 

Breeder reactor 

British thermal unit 

Brown, Robert 

Brownian movement 

Brush 

BTU 

Bubba 

Bubba Problem 

Bubba Problems involving Amanda

Bubba Problems involving Billy Bob 

Bubba Problems involving conversion between units of measure

Bubba Problems involving Mary Sue 

Bubba Problems involving motion in one direction 

Bubba Problems involving Projectile Motion 

Bubba Problems involving Tammy Jo 

Bubba Problems involving torque 

Bubba Problems involving Uncle Roy 

Bubba's boat 

Bubba's girlfriend  

Bubba's horse  

Bubba's pet snake 

Bubba's truck 

Bulk modulus 

Buoy

Buoyant force (B) 

Bushing 

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c (Symbol used for the speed of light) 

c (Symbol used for the hypotenuse of a right triangle)

C (Roman numeral meaning 100) 

Calculator 

Calculus 

Calorie 

Calorimeter 

Camera 

Camptown Racetrack, length of 

Candle 

Capacitance 

Capacitor 

Capacitor, Electrolytic 

Capacitor, Variable 

Capital 

Carat 

Carboy 

Carlson, Chester 

Cartesian coordinate system 

Cathode 

Cavendish, Henry 

Cell 

Cell, Dry 

Celsius temperature scale

Center

Center of curvature 

Center of gravity (c.g.)

Center of gravity limits (Aviation) 

Center of gravity moment envelope (Aviation) 

Center of gravity of a quarter circle arc (PDF info sheet)

Center of gravity of a semicircle (Diagram (GIF))

Center of gravity range (Aviation) 

Center of Gravity Worksheets 

Center of mass 

Center of oscillation 

Center of percussion 

centi- (Metric prefix for 10-2)

centimeter (10-2m)

Centrifugal force 

Centrifuge 

Centigrade temperature scale

Centripetal acceleration 

Centripetal force 

CGS system of measurement 

Chain reaction 

Charge 

Charge carrier 

Charged

Charge on a proton 

Charles Augustin de Coulomb 

Charles' law 

Charm 

Charmed quark 

Chemical elements, compounds, and alloys main page  

Chemical reaction 

Chord 

Chromatic aberration 

Chromel wire  

Ci 

CID or C.I.D. 

Cipher 

Circle 

Circle inscribed in a triangle 

Circuit 

Circuit breaker 

Circuit diagram 

Circular motion 

Circular slide rule

Circular slide rule scale 

Circumference 

Classical mechanics 

Claudius Ptolemy 

Clockwise 

cm (Symbol used for centimeter)

CM (Center of mass)

Coefficient of area expansion (Multiply Coefficient of linear expansion by 2)

Coefficient of cubic expansion  (Multiply Coefficient of linear expansion by 3)

Coefficient of friction 

Coefficient of friction between various materials (List)

Coefficient of kinetic friction 

Coefficient of linear expansion 

Coefficient of static friction 

Coefficient of volume expansion  (Multiply Coefficient of linear expansion by 3)

Cohesion 

Coil 

Coil spring 

Coin

Coins of the United States 

Collector of a transistor 

Collision

Collision, elastic

Collision, inelastic 

Colt 

Commutator 

Complement 

Complementary Angles 

Complex number 

Component force 

Component vector 

Compound

Compound bow

Compound Interest 

Compression stroke 

Compressive strength of concrete (PDF done 20070626_1413)

Compton shift 

Compton wavelength 

Computer 

Concave 

Concrete 

Concrete, Strength of (PDF done 20070626_1413)

Concrete Number 

Concurrent forces 

Conductor 

Cone 

Confederate States of America 

Conic section 

Conjugate foci 

Conjunction 

Conservation of angular momentum 

Conservation of energy

Conservation of kinetic energy 

Conservation of momentum 

Constant (Math and Science term)

Contact force 

Continuous Function 

Conventional current 

Converging lenses 

Conversion Factors 

Conversion worksheets 

Conversion between units of angle measure Worksheets 

Conversion between units of measure worksheets 

Conversion of 75 miles/hour into various other units of velocity 

Convert between units of measure 

Convert Celsius into Fahrenheit

Convert Fahrenheit into Celsius 

Convert Feet to Inches 

Convert Gallons to Cubic Inches 

Convert Inches to Centimeters 

Convert Inches to Feet 

Convert Miles/Hour (75 miles/hour) into Meters/Second (Detailed explanation) 

Convert pascals to PSI (MSWORD) (PDF)

Convex 

Convex-concave lens 

Coordinate 

Copernicus, Nicolaus 

Copper wire  

Cord (Unit of measure) 

Core memory (See Magnetic core memory)

Corrigan, Douglas or Wrong Way Corrigan 

Cosecant 

Cosine 

Cosine law 

Cosine Law Worksheets main page 

Cosmology (AKA Astronomy) 

Cosmonaut 

Cotangent 

Coterminal Angle

Coulomb 

Coulomb/Second 

Coulomb constant 

Coulomb, Charles Augustin de   

Coulomb's Law (GIF Image)

Coulomb's law for magnetism

Coulomb's law of electrostatics 

Counterclockwise 

Counterfeit 

Counting numbers 

Couple 

Critical mass 

Crystalline solid  

CSA 

CSS "Hunley" 

Cube of a number (Math) 

Cubic inch 

Cubic factoring (PDF in Physicsweb Infosheets) 

Curie 

Curie, Marie

Curie, Phillip 

Curie point 

Current 

Current flow 

Curvilinear motion 

Cyclic process 

Cylinder 

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d (Symbol used for the diameter of a circle)

D (Roman numeral meaning 500) 

Dalton, John 

Dam 

Data 

Data processing 

Datum 

Datum line 

DC-3 

de Broglie wavelength 

Debtor 

Decay constant 

Decay rate 

Deceleration 

Declarative sentence 

Deficiency of electrons 

Degree (Angle) 

Delta 

Delta x or Δx 

Democritus 

Denominate Number 

Density 

Density altitude 

Density of water 

Dependent Variable

Depth of field 

Derivative 

Determine the 8th root of 2 using logarithms (PDF question) (PDF answer)

Deuteron 

Deuterium 

Dew point 

Dewar flask 

Dewar, Sir James 

Diagram

Diagram of a grindstone (GIF

Diagram of a semicircle showing center of gravity (GIF)

Diamagnetic 

Diamagnetism

Diameter 

Diamond 

Die 

Die for making wire with ductile materials 

Die for threading bolts 

Dielectric

Dielectric constant 

Dielectric constant list (List of various materials)

Dielectric strength 

Dielectric strength list (List of various materials)

Diesel engine

Diesel fuel

Difference  

Diffraction 

Diffraction grating

Diffuse reflection 

Diffusion 

Dihedral angle 

Dime 

Dimensional analysis 

Diode 

Dip angle 

Dipole 

Dirac, Paul Adrien Maurice 

Dirac's theory 

Direct current 

Directly proportional 

Disk 

Displacement 

Displacement (Of a ship)

Distance 

Distance Formula (Math) 

Distance Formula Worksheets (Math) 

Distance to the horizon (MSWORD) (PDF)

Distillation 

Diverging lenses 

Divide 

Dividend  

Diving bell

Division 

Divisor 

DNA 

Domain 

Doping 

Doppler effect 

Down quark 

Dozen 

Dram 

Drill

Drill bit 

Drill bit sizes, fractional drill bits 

Drill bit sizes, letter drill bits 

Drill bit sizes, metric drill bits 

Drill bit sizes, number drill bits 

Drill press 

Drive shaft 

Dry cell 

Ductile 

Ductility 

Dwarf Planet 

Dynamics 

Dyne 

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(Symbol for the base of natural system of numbers)

e (elementary unit of charge)  

eit   (Calculate maximum interest rate for continuous compounding)

E6B 

Earth 

Eddy currents 

Edison effect 

Effect of latitude on the acceleration due to gravity on earth (PDF

Efficiency 

Eight classes of words 

Eighth root of 2 by using logarithms (PDF question) (PDF answer)

Einstein, Albert 

Einstein's equation 

Elastic collision 

Elastic limit 

Elasticity 

Elastic modulus 

Elastic potential energy 

Electric charge 

Electric current 

Electric dipole 

Electric field 

Electric field line 

Electric field intensity 

Electric flux

Electric line of force  

Electric match 

Electric resistance in parallel 

Electric resistance in series 

Electrically charged 

Electricity 

Electrification 

Electrochemical cell 

Electrochemical equivalent (z) 

Electrode 

Electrodynamometer 

Electrolysis 

Electrolyte 

Electrolytic cell 

Electromagnetic energy 

Electromagnetic force 

Electromagnetic spectrum 

Electromagnetic wave 

Electrometer 

Electromotive force 

Electron 

Electron gas 

Electron mass 

Electron microscope 

Electron volt 

Electroplating 

Electroscope 

Electrostatic 

Electrostatic equilibrium 

Electrostatic forces 

Element 

Elements, Aristotle's four basic 

Elementary charge 

Elementary particle 

Elevation (Effect of elevation on acceleration due to gravity on Earth) 

emf  

Emission spectrum 

Emissivity 

Emissivity Table (For various surfaces)

Emitter of transistor 

End mill 

Energy  

Engine 

Entropy 

Equal 

Equal sign (=) 

Equation 

Equation, Fundamental accounting 

Equations & Formulas used in Physics 

Equator 

Equilibrant force 

Equilibrium  

Equilibrium, 1st condition for

Equilibrium, 2nd condition for  

Equities 

Escape Speed 

Escape Speed for various heavenly bodies 

Escape Velocity 

Euler, Leonhard 

eV (Symbol used to indicate electron volt)

Even number 

Excess of electrons 

Exclamatory sentence 

Exhaust 

Exhaust manifold

Exhaust stroke 

Explode 

Explosion 

Explosive 

Exponent 

Exponent worksheets 

Exponential Function 

Exponential notation 

External combustion engine 

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f (Symbol sometimes used to indicate the force of friction)

f-number

f-stop 

f(x) (Symbol used to indicate a function of x as in "y = f(x)")

F (Symbol used to indicate farad,  the SI unit of capacitance)

Ff (Symbol sometimes used to indicate the force of friction)

F-2A US warplane "Buffalo"

F-4F US warplane "Wildcat"

Factor

Factoring 

Factoring the difference of two cubes (PDF in Physicweb Infosheets)

Factoring the sum of two cubes (PDF in Physicweb Infosheets)

Fahrenheit 

Farad 

Faraday, Michael 

Faraday 

Faraday's 1st law 

Faraday's ice-pail experiment 

Farrell High School 

Fathom 

Feet 

Femtometer (fm)

Fermi 

Ferromagnetic 

Fiber optics 

Fick's law 

Field magnet 

Field mill 

Filament  

Filly 

Fireworks 

Fireworks, Heat of Combustion (PDF)

Fireworks, Ignition Temperatures (PDF) 

Firing order

First condition for equilibrium 

First harmonic 

First law of photoelectric emission 

First law of reflection 

Fission 

Fission fragments 

Flat mirror 

Fluid 

Fluorescent 

Flying buttress 

Flying Fortress 

Flywheel 

fm (symbol for femtometer) 

Foal 

Food

Food calorie 

Foot 

Foot-pound 

Football 

Football field 

Football player 

Football field 

Football field lights 

Force 

Force and springs 

Force involving springs 

Force of friction 

Force of gravity 

Force of kinetic friction

Force of static friction 

Force worksheets 

Ford Motor Company 

Formula

Formulas & Equations used in Physics 

Fortnight 

Forty two 

Forward bias 

Fossil fuel

Foucault, Jean 

Four types of sentences 

Fraction 

Fractional distillation 

Frame of reference 

Franklin, Benjamin 

Free electron 

Free fall 

Free fall acceleration due to gravity at various altitudes on Earth 

Free proton 

Freedom (Bubba's Horse) 

Frequency 

Frequency distribution 

Freeze 

Freezing 

Freezing point 

Freezing point of water (32 F) (0 C)

Fresnal, A. J. 

Friction 

Friction and screws (Info)

Friction, Coefficient of 

Friction, Coefficient of kinetic

Friction, Coefficient of static 

Friction, reducing of 

Fuel 

Fuel injector 

Fuel line 

Fuel load 

Fuel pump 

Fuel tank 

Full-wave rectifier 

Function 

Fundamental accounting equation 

Fundamental unit of charge 

Fur 

Furbearers 

Fuse 

Fused 

Fusion 

  T   U   W   X    

g (Symbol used to represent the acceleration due to gravity) (AKA little gee)

G (universal gravitational constant) (AKA as Big Gee)

Gal  (CGS unit of acceleration) 

Galileo Galilei 

Galilei, Galileo

Gallon  

Galvanometer 

Gamma rays

Gas (One of the states of matter)

Gasoline 

Gauge pressure 

Gauss, Karl Friedrich 

Gauss's law 

Gaussian surface 

Gear 

Gear and Pulley Worksheets Main Page 

Gear ratio 

Gear teeth 

Gell-Mann, Murray 

Generator 

Geocentric model 

Geographic equator 

Geographic North pole

Geographic South pole 

Geography 

Geometric progression

Geometric sequence

Geometric shapes worksheets 

Geometry (One of the seven liberal arts

Georg Simon Ohm  

Geosynchronous Orbit 

Geysers 

Gill (Unit of measure)

Glass rod 

Gold foil 

Golden ratio 

Google

Gothic arch 

Grade of a road 

Grammar (One of the seven liberal arts

Graph 

Graph of Y = 2X + 1 (PDF question) (PDF answer

Graph of Y = Sin x (PDF) 

Graph of Y = Sin x from 0 to 90 degrees (PDF

Graph of Y = Sin x + Sin 2x (PDF)

Graph of Y = Sin x and Y = Sin 2x (PDF) (GIF

Graph of Y = Sin 2x (PDF)

Graph of Y = Σ 4-n for n = 0 to 18 (GIF) (PDF

Graph paper 

Graphing 

Graphing Worksheets 

Gravitation on earth, Effects of latitude on acceleration due to (PDF

Gravity 

Gravitational boosting (See Slingshotting below)

Gravitational field 

Gravitational field strength 

Gravitational potential energy 

Greek fire 

Greek letters 

Greenhouse

Greenhouse effect 

Grindstone (Diagram of (GIF)

Gross 

Ground 

Ground wire 

Grounding rod

Grounded 

Grouping symbols ( ) , { }, [ ] 

  T   U   W   X    

Hadrons 

Hail

Hailstone terminal velocity chart (PDF

Half 

Half Disme or Half Dime 

Half Eagle 

Half-life 

Half-wave rectifier 

Hall effect 

Ham radio 

Hammer 

Hand (Unit of distance)

Handgun 

Hard magnetic material 

Harmonic 

Harmonic motion 

Hawking radiation 1 

Hay 

Heat 

Heat engine 

Heat of combustion 

Heat of combustion of various materials (PDF) 

Heat of fusion 

Heat of vaporization 

Heat sink

Heat source 

Height 

Heisenberg, Werner 

Helicopter 

Heliocentric model 

Henry Cavendish 

Her Majesty's Ship 

Heron's formula for the area of a triangle

Hertz, Heinrich 

Hertz 

Hexagon 

Hipparchus (Greek astronomer from about 140 B.C.)

Histogram 

HMS 

Holography 

Hooke, Robert 

Hooke's law  

Hoop 

Horizon

Horizon, Distance to the (MSWORD) (PDF)

Horsepower 

Horsepower produced by humans 

Horseshoe magnet 

Hot wire

Hour 

How automobiles protect you from lightning 

How lightning rods work 

How to reduce a square root   

How to reduce friction 

How to Solve a Triangle 

HP (Common abbreviation for Horsepower)

Human being

Human Power Output 

Humidity 

"Hunley", CSS 

Hurricane 

Huygens, Christian 

Huygens' principle

Hyperbola 

Hypotenuse 

Hysteresis 

Hysteresis loop 

  T   U   W   X    

i (Symbol used for the imaginary number)

I (Symbol for moment of inertia) 

I (Roman numeral meaning unity) 

ICBM (International Continental Ballistic Missile)

Ice  

Ice point 

Ideal absorber 

Ideal Fluid 

Ideal gas law 

Ideal reflector 

Ignition 

Ignition Temperatures of various substances (PDF) 

IJS 

Imaginary number ( i ) 

Imperative sentence 

Imperial gallon 

Imperial Japanese Ship 

Improper fraction 

Impulse 

Inclined plane 

Inclined plane problems 

Independent Variable 

Index of refraction 

Indicated altitude 

Induced charge 

Induction 

Inductor 

Inequality 

Inequality symbol

Inertia

Inertial frame of reference 

Initial acceleration 

Initial displacement 

Initial side of an angle

Initial velocity 

Instantaneous speed 

Instantaneous velocity 

Insulator 

Intake manifold

Intake stroke

Integers 

Integral 

Integrated circuit 

Integration 

Interjection 

International Continental Ballistic Missile (ICBM) 

International Space Station 

Interpolate 

Interrogative sentence 

Invar 

Inverse cosine

Inverse cosine 

Inverse tangent 

Inversely proportional 

Ionization 

Ionization energy 

Irrational numbers 

Isis 

Isobaric process 

Isolated system 

Isothermal process 

Isotope 

Isovolumetric process 

Ivy 

  T   U   W   X    

Ivy League 

Jackdaw 

Joule 

Joule/Coulomb 

Joule, James Prescott 

Junction transistor 

  T   U   W   X    

ke (Coulomb constant)  

KE (Symbol used for Kinetic Energy) 

KEr (Symbol used for Rotational Kinetic Energy) 

KEt (Symbol used for  Translational Kinetic Energy) 

Kelvin 

Kelvin temperature scale 

Kepler, Johannes 

Kepler's 1st Law 

Kepler's 2nd Law 

Kepler's 3rd Law 

Kepler's Laws 

kg (SI Symbol used for kilogram)

ke (Symbol used for the Coulomb constant)

Kilo

Kilocalorie 

Kilogram 

Kilowatt 

Kilowatt-hour 

Kinematics 

Kinetic energy 

Kinetic theory of matter 

Kirchhoff's first law 

Kirchhoff's second law 

KISS 

Kitty Hawk, South Carolina 

  T   U   W   X    

L (Symbol used for angular momentum)

L (Roman numeral meaning 50) 

Ladder

Ladder problem 

Ladder problem worksheets 

Land area on the earth 

Laser 

Latitude

Latitude, effect on acceleration due to gravity (PDF

Latent heat 

Latent heat of fusion

Latent heat of vaporization 

Lava 

Law (Legal)

Law (Scientific)

Law of conservation of electron-lepton number 

Law of conservation of mechanical energy 

Law of conservation of momentum 

Law of conservation of strangeness 

Law of cosines 

Law of entropy 

Law of heat exchange 

Law of reflection 

Law of refraction 

Law of sines

LCD 

Lead acid battery 

Lead paint 

Leaf electroscope 

Leaf spring 

Lee, Ezra 

Length 

Length of the Camptown Racetrack 

Lenz's law 

Leonhard Euler 

Lepton number 

Leptons 

Letter Drill Sizes 

Lever 

Lever arm 

Liberal Arts 

Lift 

Linear function

Light 

Light year 

Lightning   

Lightning protection in an automobile 

Lightning rod 

Lightning rod, why it works 

Limelight 

Line 

Linear

Linear Function 

Liquid 

Liquid crystal 

Liquid crystal display 

Liquid Oxygen 

Liter 

Local value of a number 

Location 

Lodestone 

Log 

Logarithm 

Logarithmic Function 

Logic (One of the seven liberal arts

Long division 

LOX 

Lug nut 

Lug nut wrench 

Lumen 

Luminous intensity 

Lyman series 

  T   U   W   X    

 

M (Roman numeral meaning 1000) 

Machine 

Machine, simple 

Magnet 

Magnetic core memory 

Magnetic declination 

Magnetic equator

Magnetic field line 

Magnetic flux 

Magnetic material 

Magnetic North pole

Magnetic South pole 

Magnetism 

Magnetite 

Magneto 

Magneto Main Page in Mr. A.'s Extra Web 

Magneto, Fundamentals of (Info from Fairbanks-Morse) (In Extra Web/Magnetos) 

Manhattan Project 

Mare 

Mars (Planet)

Mary Sue 

Mass 

Mass density  

Mass-Energy relationship 

Mass number 

Mass number A 

Mass of earth 

Mass of electron

Mass of neutron

Mass of proton 

Master cylinder 

Matter 

Maxwell, James Clerk 

Mean

Mean aerodynamic chord (MAC) (Aviation) 

Measure of angle 

Mechanical equivalent of heat 

Median 

Mega

Megavolt (MV or Mv) (106V)

Mercury (Element)

Mercury (Planet)

Mercury thermometer 

Merlin (WW2 airplane engine mfg. by Rolls Royce) (Picture)

Meson 

Meter 

Meter per second 

Methane 

Metric prefixes 

Metric system of measurement 

Metric ton 

MKS system of measurement 

Micro (SI prefix meaning 10-6)

Microcoulomb 

Microcurie 

Microfortnight 

Microvolt (V or v) (10-6V)

Mil 

Mile 

Millicurie 

Millivolt (mV or mv) (10-3V)

Millikan, Robert 

Millikan oil-drop experiment 

Millimeter 

Minuend  (Mathematics)

Minute (Angle)

Minute (Time) 

Mirage 

Mirror

Mirror equation 

Missile 

Mister A. 

Mister A's perhaps fictional characters 

Mixed number 

MLA 

Mode 

Modern Language Association 

Molecule 

Moment 

Moment arm 

Moment index (Aviation)

Moment of inertia 

Moment of Inertia Worksheets 

Momentum 

Momentum (Sample Problem 001) 

Month 

Morey, Samuel 

Motion 

Motion diagram 

Motion equations 

Motion equations additional information (PDF)

Motor 

Motor oil 

Moving frame of reference 

Music (One of the seven liberal arts

Muzzle velocity 

  T   U   W   X    

n (SI prefix for nano or 10-9)

n-type semiconductor 

N (SI symbol used for the newton) 

N/m (Units used for the spring constant)

Nail

nano 

nanoacre 

NASA 

National Underwater and Marine Agency (NUMA) 

Natural magnet 

Natural numbers 

Nautical

Nautical mile

Nautilus, USS  

Navigation

Navigation worksheets 

Negative 

Negative charge  

Negative number

Negative vector 

Neptune (Planet) 

Neutral wire 

Neutrino 

Neutron 

Neutron bomb 

Neutron mass 

Neutron number 

Newton 

Newton/Coulomb 

Newton/Meter 

Newton-Meter 

Newton-meter per second 

Newton-second 

Newton per Coulomb 

Newton per kilogram 

Newton per meter   

Newton per meter squared 

Newton, Sir Isaac

Newton's 1st law of motion 

Newton's 2nd law of motion 

Newton's 3rd law of motion

Newton's law of universal gravitation 

Newton's rings 

Nichrome wire  

Nitrous oxide 

Nolichucky Jack   

Nollet, Jean Antoine 

Nonconservative forces

Noninertial frame of reference 

Nonohmic 

Nonviscous 

Noon 

Normal

Normal atmospheric pressure 

Normal boiling point of water 

Normally aspirated engines 

North 

North magnetic pole 

North pole

North seeking pole 

Notation 

Noun 

npn transistor 

Nuclear binding force 

Nuclear bomb 

Nuclear force 

Nuclear fission 

Nuclear mass defect 

Nuclear physics 

Nuclear reactor 

Nuclear transformation 

Nucleus 

Nucleon 

Nuclide 

NUMA

Number 

Number, Abstract

Number, Concrete

Number, Denominate 

Numeral 

Numerical expression 

Nut 

  T   U   W   X    

Oakum 

Object distance 

Oblate spheroid 

Ocean

Ocean area of the earth 

Ohm

Ohm, Georg Simon

Ohm's law  

Ohmic 

Oil

Oil filter

Oil filter wrench 

Oleometer   

Olympus Mons 

oom (Order of magnitude)

OPM (Other People's Money)

Opposite side of a triangle 

Optical light 

Optics 

Orbit 

Orbital magnetic quantum number 

Orbital quantum number 

Order of magnitude (oom or OOM)

Order of magnitude rounding 

Order of operation 

Origin 

Orion 

Oroborus (Name of Bubba's pet snake) 

Osmosis 

  T   U   W   X    

p (Symbol used for momentum) 

P (Symbol used for Power)

Pavg (Symbol used for Average Power)

p-n junction 

p-type semiconductor

Parabola 

Parabolic path 

Parallel (circuit) 

Parallel Resistance 

Parallel-plate capacitor

Parallelogram 

Paramagnetic 

Paramagnetism 

Part of Speech 

Pascal   

Pascals, convertsion into PSI (MSWORD) (PDF)

Pascal's Triangle (Used with Binomial Expansion)

Paschen series 

Pauli exclusion principle 

Peltier effect 

Peloponnesian War 

Pen

Pen, ball point

Pen, fountain

Pen, quill

Pencil

Pencil, mechanical 

Pendulum 

Pendulum motion 

Pennsylvania 

Pentagon

Pentagonal number 

Perihelion 

Perfect number 

Periodic Chart

Periodic Chart from 1925 (PDF from 1927 Handbook of Chem. + Phys.)

Periodic motion 

Periscope 

Permalloy 

Permittivity of free space 

Perpendicular 

Perrin, Jean 

Phase 

Phases of matter 

Photon 

Physical quantities 

Physics 

Physics Equations and Formulas 

Physics tests 

Physics Worksheets 

Pi (Stored in Computer applications definitions) 

Pickup Truck 

Piefort (w.r.t coins)

Piedfort (w.r.t. coins)

Piezoelectric 

Piezoelectric cell 

Piezoelectric effect 

Pint 

Pitch 

Pitch of a roof 

Planet 

Plank, Max 

Plano-concave lens

Plano-convex lens 

Plasma 

Plasma globe 

Plumb bob 

Pith ball 

Pivot point 

Plane polar coordinates 

Planet 

Planets, How many there have been throughout history 

Planets, Original seven known before 1543  

Plating 

Plural 

Pluto 

pnp transistor 

Pocket CD-R

Point charge 

Polaris   

Polarization 

Pompeii 

Pony 

Positive charge 

Positron  

Post and Beam construction 

Potential difference 

Potential gradient 

Potential energy 

Potentiometer 

POTUS 

Power (Math) 

Power (Physics) 

Power, Average 

Power, Instantaneous

Power Output of Humans 

Power stroke 

Powers of 2 (List in.TXT format)

Powers of 3 (List in .TXT format)

Precession 

Precision 

Predicate 

Predicate of a sentence 

Preposition 

Pressure 

Pressure altitude

Pressure cooker 

Pressure gauge

Pressure, absolute

Pressure, atmospheric 

Pressure, guage 

Prime (Pump)

Prime meridian 

Prime number

Principle quantum number 

Prism 

Problate spheroid 

Product  (Math) 

Pronoun 

Projectile 

Projectile motion 

Projectile motion worksheets 

Projection angle 

Proof

Proof Set 

Proper fraction 

Properties of Equality (Math) 

Proton 

Proton charge 

Proton mass  

PSI (Pounds per square inch) (English unit for pressure)

PSI, convertsion into pascals (MSWORD) (PDF

Ptolemy, Claudius 

Pull

Pulley 

Pulley and Gear Worksheets Main Page 

Push

Pythagoras 

Pythagorean theorem 

Pythagorean Theorem Worksheets 

Pythagorean trigonometric identities 

  T   U   W   X    

Q  (Quantity of charge)   

Quadrant 

Quadrantal angle 

Quadratic equation 

Quadratic Function 

Quadratic formula 

Quantity of charge (Q)

Quantum theory 

Quark

Quart 

Quarter 

Quartile 

Quotes

Quotes by Bohr (Niels Bohr) 

Quotes by Einstein (Albert Einstein)

Quotes by Franklin (Benjamin Franklin)

Quotes by Poincare (Jules Henry Poincare) 

Quotes by von Braun 

Quotient 

  T   U   W   X    

r (Symbol used for the radius of a circle)

Radian 

Radians per second 

Radians per second per second 

Radiating 

Radiation

Radiator 

Radiator cap 

Radical 

Radio 

Radio telescope 

Radio wave 

Radioactive 

Radioactive decay 

Radioactivity 

Radioisotope 

Radiometer 

Radium 

Radius 

Radius Vector (Math)

Radix 

Range (Math)

Rate 

Ratio 

Rational numbers 

Ray (Math) 

RC circuit 

Real image 

Real numbers 

Rear end (Automotive part) 

Reciprocal 

Reciprocal Identities (Trigonometry) 

Rectangle 

Rectangle, Area of 

Rectangular solid 

Rectilinear propagation 

Rectangular coordinate system 

Rectifier 

Redline 

Reducing Square Roots (Example)

Reference Triangle 

Reflection 

Refraction 

Reflexive property 

Regular hexagon 

Regular polygon 

Regular polygon construction 

Relation 

Relative deviation 

Relative velocity 

Relativity 

Remainder 

Replacement set 

Resistance  

Resistance in parallel 

Resistance in series  

Resistivity 

Resistor 

Resonance 

Resonant frequency 

Rest

Resultant force 

Resultant vector 

Retroreflection 

Revolution

Revolutions per minute 

Revolve 

Rheostat 

Rhetoric (One of the seven liberal arts

Rice 

Rifle

Right angle 

Right triangle 

RNA 

Robert Millikan 

Rocket 

Rocket engine 

Roentgen, Wilheim 

Roentgen 

Rolls-Royce Merlin aircraft engine (Picture)

Roman arch

Roman notation

Roman numerals 

Roof 

Roof, Pitch of 

Roller bearing 

Rotary motion 

Rotary motion (Angular) Worksheets Main Page 

Rotation

Rotational inertia 

Rotational kinetic energy 

Rotor 

Round 

Rounding

Rounding to closest order of magnitude 

RPM 

Rule of 72 as a PDF document (Math & Finance) 

Rumford, Count 

Runway 

Runway number 

Rutherford, Ernest 

Rydberg constant 

  T   U   W   X    

Saturn (Planet)

Saturn, Rings of 

Scalar quantity 

Scanning tunneling microscope 

Schematic

Schematic symbols 

Science 

Scientific notation 

Screw 

Screw jack 

Sea level 

Secant 

Second 

Second condition for equilibrium 

Second law of photoelectric emission 

Second law of reflection 

Seebeck effect 

Self sustained chain reaction 

Semicircle  

Semicircle, center of gravity (Diagram (GIF

Semiperimeter of a triangle 

Sentence 

Sequence 

Sequence, finite

Sequence, infinite 

Series capacitance 

Series (circuit) 

Series resistance 

Set 

Seven 

Seven liberal arts  

Shear modulus 

Shear stress

Shear strain 

Shim 

Ship

Ship (Displacement of a)

Shock absorber 

Short division 

Shot

Shotgun 

Shunt resistor 

SI (Symbol used to indicate the System International measuring system)

SI system of measurement 

Sigma 

Significant digits 

Significant figures 

Significant figures worksheets 

Silver solder 

Simple harmonic motion 

Simple machines 

Simple value of a number 

Simplify 

Sine 

Sine law 

Sine Law Worksheets Main Page 

Sire 

Six 

Size of atoms 

Size of letter drill bits in inches 

Sky

Skylab 

Slide 

Slide rule 

Slide rule scale, circular (PDF)

Slingshot

Slingshotting 

Slip rings 

Slip 

Slip stick 

Slope 

Slope-Intercept Equation for a line 

Snell, Willebord 

Snell's law of refraction 

Soft magnetic materials 

Solar day 

Solar system 

Solder 

Solid 

Solid ball 

Solution 

Solve

Solve a triangle 

Sonometer 

South

South Sharon High School 

Space

Space Shuttle 

Space Station 

Spark

Spark plug 

Spark plug wire

Spark plug wrench 

Specific gravity 

Specific heat 

Specular reflection 

Speed 

Speed of light 

Sphere 

Spherical aberration 

Sphygmomomanometer 

Spin magnetic quantum number 

Split ring 

Spring 

Spring, Force needed to stretch or compress  

Square 

Square root 

Square root reduction (Example)

Square yard 

Squared 

SR-71 US spy plane "Blackbird"

Stallion 

Standard deviation 

Standard position of an angle 

States of matter 

Static electricity  

Stationary 

Stationary frame of reference 

Stator 

Steam 

Steam engine 

Steam point of water 

Stefan's law  

Stella 

Steradian 

Stinger

Stinger missile 

Strange particles 

Strange quark 

Strangeness 

Strength of concrete (PDF done 20070626_1413)

Strain 

Stress 

Stress & Strain worksheets 

Strong nuclear force 

Stud 

Stud finder 

Subatomic particles 

Subject of a sentence 

Submarine 

Subscript 

Subset 

Substitution principle 

Subtraction 

Subtrahend 

Sum 

Sun  

Sun spots 

Sunrise

Sunset 

Supercharged engines 

Superconducting 

Superconductivity 

Superposition principle 

Superscript 

Supersonic 

Surface

Surface area 

Surface tension 

Surface area of a cube 

Surface area of a hemisphere

Surface area of a rectangular solid

Surface area of a sphere

Synchronous motor 

Systme International   

  T   U   W   X    

Tammy Jo 

Tangent 

Tap 

Tau leprton 

Taylor series for sine of x 

Teflon 

Telescope 

Temperature 

Tensile stress

Tensile strain 

Tensile strength 

Tensile strength of various materials 

Tension 

Terminal speed 

Terminal velocity

Terminal velocity of hailstones (PDF

Term or terms 

Tesla 

The Whole Nine Yards (Common phrase) 

Theoretical Scientist 

Theory 

Thermal contact 

Thermal efficiency of heat engine 

Thermal equilibrium 

Thermal expansion 

Thermal physics 

Thermoacoustic effect 

Thermocouple 

Thermodynamics 

Thermogram 

Thermography 

Thermometer 

Thermos bottle 

Thermostat 

Thick ring 

Thin lens

Thin lens equation 

Thin ring 

Third law of photoelectric emission 

Thompson. J. J. 

Thompson effect 

Three-way lightbulb

Three-way switch 

Thrust 

Thucydides 

Tide

Timber 

Time 

Time derivative 

Times (Mathematics)   

Tokamak 

Tokamak Fusion Test Reactor 

Top quark 

Topness 

Torque 

Torque arm 

Torque worksheets main page 

Torque wrench 

Trajectory 

Transistor 

Transmission 

Transparent 

Transparent aluminum 

Triangle 

Triangle, area of 

Triangular numbers (As PDF) (As XLS

Trigonometric functions 

Trigonometric functions expressed in terms of the tangent 

Trigonometric functions worksheets 

Trigonometric identities misc. 

Trigonometric identities (Pythagorean) 

Trigonometric Tables by degree to 4 decimal places (As PDF) (As XLS)

Trigonometry 

Triple point of water 

Tritium 

Tropic of Cancer

Tropic of Capricorn 

True altitude 

Turbocharged engines 

Tuning fork 

Turbulence 

Turtle 

Twelve 

Twist

Twist drill 

Two 

  T   U   W   X    

Ultraviolet 

Ultraviolet light 

Umbra 

Uncertainty principle 

Uncle Roy 

Unified mass unit 'u'

Uniform circular motion 

Uniform motion 

Uniformly accelerated motion 

Unit 

United States Coins 

United States of America 

United States Ship 

Units of measure 

Unity 

Universal gas constant 

Universal gravitational constant   

Up

Up quark 

Upward 

USS 

USS "Arizona" 

USS "Indianapolis" 

USS "Nautilus" 

USS "Scorpion" 

UV 

  T   U   W   X    

v (Symbol used for velocity)

v0 (Symbol used for velocity at time = 0)

vf (Symbol used for final velocity)

vi (Symbol used for initial velocity)

V (Symbol used for Voltage)

V (Roman numeral meaning 5) 

Value 

Van Allen radiation belt

Van de Graff, Robert J.

Van de Graff generator

Vane electroscope 

Vapor 

Variable

Variable circular motion

Variably accelerated motion

Vector 

Vector addition 

Vector components 

Vector equality 

Vector quantity  

Vector subtraction 

Vector sum 

Vector Worksheets 

Velocity 

Velocity to escape gravity 

Venus (Planet) 

Verb 

Vernier 

Vernier caliper 

Vers 

Versed cosine 

Versed sine 

Vertical 

Vertex of an angle 

Virtual image 

Volcano 

Volt 

Volt/Meter

Voltage 

Volta, Alessandro 

Voltaic cell 

Voltmeter 

Voltmeter sensitivity  

Volume 

Volume of a cube 

Volume of a cylinder laid on its side

Volume of a cylinder standing vertical 

Volume of a pyramid 

Volume of a rectangular solid

Volume of a sphere 

  T   U   W   X    

War 

War of Northern Aggression 

Warship 

Washer 

Washer, lock 

Water

Water pressure 

Watt (SI unit of power) 

Watt-second (SI unit of work or energy)

Wattmeter 

Watt, James 

Wave

Wave mechanics 

Wavelength 

Weak nuclear force 

Weak nuclear interactions 

Weber 

Wedge 

Weight 

Weightless 

Wein's displacement law 

Weld

Welding

Welding, arc

Welding, gas

Welding, MIG

Welding, stick

Welding, TIG 

Wheat 

Wheatstone bridge

Wheel and axle 

Wheel bearing 

Wheel bearing seal 

White 

Whole numbers 

Why automobiles protect passengers from lightning 

Why lightning rods work 

Width 

Wind

Wind shear 

Wind sock 

Wire

Wire gauge 

Wire nut 

Wire size 

Wood 

Wood, Ash 

Work (Physics)

Work function 

Worksheet (w.r.t academics)

Worksheets Main Page (Pages of questions, answers, and other information to aid in your studies)

        Worksheets about Algebra 

        Worksheets about Angle Conversions 

        Worksheets about Angular (Rotary) Motion 

        Worksheets about Center of Gravity 

        Worksheets about Conversion between Units of Measure 

        Worksheets about Cosine Law 

        Worksheets about Distance Formula (Distance between two points) 

        Worksheets about Exponents 

        Worksheets about Forces 

        Worksheets about Gears and Pulleys 

        Worksheets about Geometric shapes 

        Worksheets about Graphing 

        Worksheets about Ladders 

        Worksheets about Math and Science (Main page) 

        Worksheets about Moment of Inertia 

        Worksheets about Navigation 

        Worksheets about Physics  

        Worksheets about Projectile Motion  

        Worksheets about Pulleys and Gears 

        Worksheets about Pythagorean Theorem 

        Worksheets about Rotary (Angular) Motion 

        Worksheets about Significant Figures or Significant Digits 

        Worksheets about Sine Law 

        Worksheets about Stress and Strain 

        Worksheets about Torque 

        Worksheets about Trigonometric Functions 

        Worksheets about Vectors 

World Wide Web 

Wright, Orville

Wright, Wilbur 

Wrong Way Corrigan 

WWW 

  T   U   W   X    

x (Math) (Symbol used to indicate multiplication when between 2 numbers or variables) (Also used as a variable)

x (Science) (Symbol used to indicate distance)

X (Roman numeral meaning 10)

X-rays 

    T   U   W   X    

y  (Symbol for metric prefix yocto)

Y (Symbol for metric prefix yotta) 

Y (Symbol used for Young's modulus)

Yard (Unit of measure)

Year 

Year 4004 BC 

Year 431 BC 

Year 0 

Year 79 AD 

Year 622 AD 

Year 1099 AD 

Year 1119 AD 

Year 1160 AD 

Year 1187 AD 

Year 1190 AD 

Year 1191 AD 

Year 1307 AD 

Year 1314 AD 

Year 1492 AD 

Year 1543 AD 

Year 1571 AD 

Year 1609 AD 

Year 1630 AD 

Year 1687 AD 

Year 1776 AD 

Year 1796 AD 

Year 1876 AD 

Year 1903 AD 

Year 1938 AD 

Year 1941 AD 

Year 1945 AD 

Year 1952 AD 

Year 1957 AD 

Year 1964 AD 

Year 1965 AD 

Year 1975 AD 

Year 1992 AD 

Year 2001 AD 

Yocto  (Metric prefix for 10-24) (y)

Yotta (Metric prefix for 1024) (Y)

Young-Helmholtz color vision theory

Young's modulus 

  T   U   W   X    

z  (Symbol for metric prefix zepto)

Z  

Zeeman effect 

Zeppelin 

Zepto  (Metric prefix for 10-21) (z)

Zero 

Zero point energy 

Zeroth law of thermodynamics  

Zetta  (Metric prefix for 1021) (Z)

Zweig, George