Explaining Motion
P4
Speed
Velocity
Instantaneous speed
Distance-Time graphs
Displacement
Acceleration
Forces
Examples of forces
Interaction pairs of forces
Gravity
Energy
9 different types of energy
An object that is moving has kinetic energy
An object that has been lifted has gravitational potential energy, a measure of what it could go on to do
Work
Momentum
Change in momentum
Kinetic energy
Crumple zones
Seat belts
Air bag