Year 10 Science - Physics Revision

Force

A push, pull or twist that can change an object’s shape or velocity.

1st Law of Motion

Objects keep their velocity unless acted upon by unbalanced forces.

2nd Law of Motion

F = ma

3rd Law of Motion

Every action has an equal and opposite reaction.

Velocity formula (with time)

v = s/t

Velocity formula (with acceleration)

v = u + at

Velocity formula (with displacement)

v² = u² + 2as

Acceleration formula

a = (v - u) / t

Energy

The ability to do work.

Work

W = Fs

Kinetic energy formula

E_k = ½ mv²

Potential energy formula

E_p = mgh

Law of Conservation of Energy

Energy cannot be created nor destroyed, only transformed or transferred.