Momentum and collision 0.0 / 5 ? PhysicsEnergyGCSEAQA Created by: nimrahali12Created on: 30-10-16 11:40 Whats the formula for momentum? mass times velocity 1 of 13 What is momentum? p is a property of moving objects 2 of 13 The greater the mass of an object and the greater its velocity the more? momentum the object has 3 of 13 Momentum is a vector quantity , it has? size and direction 4 of 13 Whats the formula? momentum (kgm/s)=mass (kg) times velocity (m/s) 5 of 13 What is the conservation of momentum? momentum before-after 6 of 13 In a closed system the total momentum before an event is the same as? after event 7 of 13 What is the closed system? no external forces act 8 of 13 Forces cause changes in? momentum 9 of 13 When a force acts on an object it causes? A change in momentum? 10 of 13 A larger force means? a faster change of momentum 11 of 13 If someones momentum changes very quickly the force on the body will be very large and more likely to cause? injury 12 of 13 This is why cars are designed with? safety features that slow people down over a longer time when they have a crash-the longer it takes for a change in momentum the smaller the force 13 of 13

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