1. Momentum Objectives (b) define linear momentum as the product of mass and velocity and appreciate the vector nature of momentum;

2. Outcomes You MUST ALL Be able to define linear momentum as the product of mass and velocity AND understand that momentum is a vector. Most of you SHOULD Be able to: state the equation for momentum, rearrange it and state its units; Explain why momentum is a vector; apply p=mv and change in momentum = mv-mu to a number of situations correctly. SOME of you COULD Understand that the change in momentum = Force x time.

3. Momentum and collisions

4. Momentum Momentum is how hard it is to stop an object. It is affected by mass and velocity and is therefore a vector quantity. Momentum(kgms -1 ) = mass(kg) x velocity(ms -1 ) p = mv

5. Change in Momentum If the velocity (or mass) of an object changes then so will the momentum. So we can write: Change in momentum = mv – mu It can be shown that: Force x time = change in momentum

6. Outcomes You MUST ALL Be able to define linear momentum as the product of mass and velocity AND understand that momentum is a vector. Most of you SHOULD Be able to: state the equation for momentum, rearrange it and state its units; Explain why momentum is a vector; apply p=mv and change in momentum = mv-mu to a number of situations correctly. SOME of you COULD Understand that the change in momentum = Force x time.