BRAINCAKEMomentum
Revision notes for Momentum in Edexcel Physics (8PH0). Read the start of any lesson here, then sign in free for the whole lesson, the R.E.C.I.P.E. recall steps and the quiz.
- MomentumMomentum is given the symbol p and is mass × velocity.
- Newton's Second Law of MotionMomentum is the product of an object's mass and velocity, p = mv.
- CollisionsThe conservation of linear momentum applies to all collisions.
- ExplosionsThe total momentum is the vector sum of all the objects in a system.
- Newton's Third Law of MotionThe principle of conservation of momentum follows from Newton's second and third laws of motion.
- Momentum Question 1P and Q are identical spheres.
- Momentum Question 2Trolley A (mass 1.5 kg) moves to the right at 4.0 ms-1 on a smooth, level track.
- Momentum Question 3A cannon of mass 1200 kg stands at rest on smooth, level ground.
- Momentum Question 4A tennis ball of mass 0.058 kg travels horizontally towards a racket at 30 ms-1.