Formulas for General Physics

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Gen. Phys. Formulas~

s = d/t


a = Δv/t


v = v0 + at


v = ½v = ½at

Average Velocity

d = d0 + v0t + ½at2


Fnet = ΣFi

Net Force

Fnet = ma

Newton's Second Law

F2 = -F1

Newton's Third Law

W = mg


a = v^2/r

Centripetal Acceleration

F = Gm1m2/r^2

Newton's Law of Gravity


Kepler's Third Law

T^2/r^3 = 4π^2/Gm

Kepler's Third Law--Extended

W = Fd


P = W/t = Fd/t


KE = 1/2 mv^2

Kinetic Energy/Work

PE = mgh

Potential Energy/Work for Gravity

PE = 1/2 kx^2

Potential Energy/Work for a Spring

F = -kx

Force of a Spring

ME = PE + KE

Mechanical Energy

T = 2π(1/g)^1/2

Period of a Pendulum

Fnet = m(Δv/Δt)

Newton's Second Law

Fnet = Δp/t

Newton's Second Law

p = mv


impulse = FΔt = Δp


p2 = -p1

Conservation of Momentum

ω = θ/t

Velocity of Rotational Motion

ω = ω0 + αt

Velocity of Rotational Motion

α = Δω/t

Acceleration of Rotational Motion

v = ωr

Linear Velocity

θ = ω0t + (1/2)αt^2

Displacement of Rotational Motion

τ = Fl


I = mr^2

Rotational Inertia

τnet = Iα

Newton's Second Law

L = Iω

Angular Momentum

L = mr^2ω

Angular Momentum

L = mvr

Angular Momentum

KE = (1/2)Iω^2

Kinetic Energy of Rotational Motion

I1ω1 = I2ω2

Conservation of Momentum

F = kq1q2/r^2

Electrostatic Force

E = Fe/q

Electric Field

q = It

Electric Charge


Electrostatic Potential

ΔV = ΔPE/q

Electric Potential

ΔV = Ed

Electric Potential

I = q/t


I = ΔV/R

Ohm's Law

R = V/I

Electric Resistance

ε = IR

Electromotive Force

P = εI

Power of Electricity

P = I^2*R

Power of Electricity

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