PreQ Physics - Term 1 Formulas

Motion (with v, u, a, s)

v2=u2+2as

Motion (with u, a, t, s)

s = ut + 1/2at2

Motion (with v,u, a, t)

v = u +at

Hooke’s law

F = kx

Forces

F = ma

Circular motion

F = mv2 / r

Momentum

p = mv

Impulse

Ft = mv - mu
P = Fnet Change(t)

Change of Momentum

P = m Change(v)

Kinetic energy

KE = 1/2mv2

Efficiency in energy

useful energy output / total energy input

Efficiency in power

useful power output / total power input

Work

W = Fd = Change(E)

Density

p = m/v

Finding speed by distant time graph

Rise / Run

Finding Distant traveled by velocity time graph

Finding the area under graph

Gravitational energy

Ep = mgh