Physics Formulas

Question 1

Velocity Equation

Answer 1

Question 2

Position Equation

Answer 2

Question 3

No Time Equation

Answer 3

Question 4

Net Force Equation

Answer 4

Question 5

Centripetal Acceleration Equation

Answer 5

Question 6

Torque Equation

Answer 6

Question 7

Momentum Equation

Answer 7

Question 8

Impulse Equation

Answer 8

J = Impulse

Question 9

Kinetic Energy Equation

Answer 9

Question 10

Potential Energy Equation

Answer 10

U_{g =} Gravitational Potential Energy

Question 11

Work Equation

Answer 11

r = Radius or Distance

Question 12

Power Equation (Mechanics)

Answer 12

Question 13

Acceleration Equation

Answer 13

a = change in velocity / t = (v_f - v₀) / t

Question 14

No Acceleration Equation

Answer 14

x = ½ (v_f + v₀)t

Question 15

What is given during the horizontal motion of a projectile?

Answer 15

a_x = 0

Constant Velocity

v_fx = x_x / t

Question 16

What is given during the vertical motion of a projectile?

Answer 16

a_y (g) = 10 m/s²

v_fy = v_0y + gt

x_y = v_0yt + ½gt²

Question 17

Coeficient of static and kinetic friction Equation

Answer 17

Question 18

The speed of an object moving in a circle

Answer 18

v = circumference/period

Question 19

What is period?

Answer 19

Time it takes to make one revolution (T)

Question 20

What is frequency?

Units?

Answer 20

The number of revolutions per unit time measured in hertz

Question 21

What is the relationship between period and frequency?

Answer 21

T = 1 / f

Question 22

Angular momentum formula

Answer 22

L = mvr

L = angular momentum

Question 23

What is the lowest point in the swing of a pendulum called?

Answer 23

Equilibrium Position

Question 24

Hooke’s Law

Finding the force of a spring

Answer 24

x = Stretched length of spring

k = Spring constant

Question 25

Gravitational Force Equation

Answer 25

Question 26

Electric Force Equation

Answer 26

Question 27

Electric Field Equation

Answer 27

Question 28

Potential Difference Equation

Answer 28

Potential Difference = Work / q

Question 29

Electric Field, Voltage, and Distance Equation

Answer 29

Question 30

Voltage, Current, and Resistance Equation

Answer 30

Question 31

Power Equation (Electricity)

Answer 31

Question 32

Capacitance Equation

Answer 32

Question 33

Capacitance Proportional/inversly proportional to...

Answer 33

Question 34

Speed, Frequency, and Wavelength Equation

Answer 34

Question 35

Formula for force on a current-carrying wire in a magnetic field

Answer 35

Question 36

Formula for force on a charge moving through a magnetic field

Answer 36

Question 37

Speed of a wave in terms of frequency

Answer 37

Question 38

What is the speed of light?

Answer 38

c = 3x10⁸ m/s

Question 39

Frequency of light

Answer 39

f = speed of light / wavelength

Question 40

Index of refraction

Answer 40

n = c / v_glass

Question 41

Snell's Law of refraction

Answer 41

n₁sin Ø₁ = n₂sin Ø₂

Question 42

Magnification of a converging lens

Answer 42

M = d_i / d_o

Question 43

Celsius to Kelvin conversion

Answer 43

K = ºC + 273

Question 44

Heat absorbed or released as a result of a change in temperature

Answer 44

Q = mc∆t c = specific heat of a substance

Question 45

Phase change heat equation

Answer 45

Q = mL L = heat of transformation

Question 46

Thermodynamics internal energy equation

Answer 46

∆U = Q - W ∆ U = internal energy Q = heat added to a system W is positive when work is done ON a system

Question 47

Heat engine percent efficiency equation

Answer 47

%e =(work / Q_{input heat}) x 100

Question 48

Relationship between pressure, volume and temperature

Answer 48

Question 49

Isothermic means... | (Boyle's Law)

Answer 49

Temperature remains constant

Question 50

Isochoric means...

Answer 50

Volume remains constant

Question 51

Isobaric means... | (Charle's Law)

Answer 51

Pressure remains constant

Question 52

Planck's Constant

Answer 52

h = 6.63 x 10^-34 J s

Question 53

Equation for energy of a photon

Answer 53

E = hf or, since f = c / λ, E = hc / λ

Question 54

Momentum of a photon

Answer 54

p = h / λ

Question 55

Wavelength of a moving particle

Answer 55

λ = h / mv

Question 56

Alpha particle

Answer 56

Question 57

Beta particle

Answer 57

Question 58

Proton

Answer 58

Question 59

Neutron

Answer 59

Question 60

Electron

Answer 60

Question 61

Equation that links energy to mass

Answer 61

E = mc²