AP Physics 2 Formula Test

Mass-Energy Equivalence

E = mc²

Absolute Pressure

P_obs = P_atm + P_guage

Buoyant Force

F_g = P_fV_fg

Density

ρ = m/V

Bernoulli’s Equation

P₁ = pgh₁ + 1/2pv₁² = P₂ + pgh₂ + 1/2pv_2²

Formula definition of Work

W = Fd = |F||d|cos(ø)

Frictional Force

F_f = F_nμ

Frictional Force on an incline

F_f = mgcos(ø)μ

Acceleration

a = ∆V/t = (V-Vo)/t

Average Speed

S = d_T/t_T

Velocity

V = ∆x/t

Acceleration of a mass sliding UP an incline, with friction

a = gsin(ø) + gcos(ø)μ

Acceleration of a mass sliding DOWN an incline, with friction

a = gcos(ø)μ - gsin(ø) or gsin(ø) - gcos(ø)μ

Forgotten Power Equation

P = FV

Newton’s Second Law of motion

∑F = ma

Torque

𝜏 = rF = |r||F|sin(ø)

Kinetic Energy

K = 1/2mv²

Hooke’s Law

F_s = -kx

Gravitational Potential Energy (on Earth)

U_g = mgh

Newton’s Law of Universal Gravitation

F_g = G(mM/r²)

Centripetal Acceleration

a_c = v²/r

Acceleration due to gravity at the surface of a planet mass M and radius R

g = G(M/r²)

Momentum

p = mv

Impulse (two formulas)

J = Ft = mv - mv_o

Weight

W = F_g = mg

First Kinematic

V = V_^o + at

Second Kinematic

∆x = V_^ot + ½ at²

Third Kinematic

V² = V_o² + 2a∆x

Spring Potential Energy

U_s = ½ kx²

Speed

S = d/t

Height of the block in terms of ø and L

h = L - Lcos(ø)

Three formulate for Power Definition of Power

P = W/t

Gravitational Potential Energy (in general)

U_g = -G(mM/r)

Units of Momentum

kg m/s

Units of Energy (both)

J = kg m²/s²

Units of the spring constant k

N/m

Units of Power (both)

W = J/s

Units of Force (both)

N = kg m/s²