SCI10 - Physics Part 1 + 2 Equations

i feel so unprepared for this final... but that's my fault :P

potential energy

E_p = mgh

kinetic energy

E_k = (½)mv²

mechanical energy

E_m = E_p + E_k

the law of conservation of energy

E_mi = E_mf

joules

J = (kg)(m²/s²)

solving for velocity using the kinetic energy equation

v = sqrt(2E_m/m)

solving for mass using the kinetic energy equation

m = 2E_k/v²

force (Newtons)

F = (kg)(m/s²)

net force

F_net = ma

acceleration

a = (v_i - v_f)/t or the slope of a v-t graph

velocity

v = m/s or the slope of a p-t graph

efficiency

Eff% = (Output/Input)100

work

W = Fd(cos θ)

θ = +1 if positive work done

θ = -1 if negative work done