BRAINCAKECollisions
Momentum is a vector quantity.
In a collision, momentum is always conserved. The total initial momentum is equal to the total final momentum.
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Key terms in this lesson
- Vector quantity
- A physical quantity that has both magnitude and direction.
- Momentum
- The product of an object's mass and its velocity; a vector quantity, conserved in any interaction provided no external resultant force acts.
More in Force and Momentum
- Rebound Impacts
- Newton's Third Law of Motion
- The Principle of Conservation of Momentum
- Practical: Testing Conservation of Momentum
- Elastic Collisions
- Inelastic Collisions
- Explosions
- Testing a Model Explosion
All 16 lessons in Force and Momentum · All AQA AS-level Physics topics