Students should be able to: explain the dangers caused by decelerations • (HT only) estimate the forces involved in the deceleration of road vehicles in • typical situations on a public road. 4.5.7 Momentum (HT only) 4.5.7.1 Momentum is a property of moving objects Momentum is defined by the equation: 90-1 76-8 92-3, 214-6 momentum = mass × velocity [ p = m v ] momentum, in kilograms per second, kg m/s p, mass, m, in kilograms, kg velocity, v, in metres per second, m/s 4.5.7.2 Conservation of momentum In a closed system, the total momentum before an event is equal to the total 90-1 76-8 92-3, 214-6 momentum after the event. This is called conservation of momentum. Students should be able to use the concept of momentum as a model to: describe and explain examples of momentum in an event, such as a collision • (physics only) complete calculations involving an event, such as the collision • of two objects. 4.5.7.3 Changes in momentum (physics only) When a force acts on an object that is moving, or able to move, a change in 90-1 76-8 92-3, 214-6 momentum occurs.
Students should be able to: • explain the dangers caused by decelerations • (HT only) estimate the forces involved in the deceleration of road vehicles in typical situations on a public road. 4.5.7 Momentum (HT only) 4.5.7.1 Momentum is a property of moving objects Momentum is defined by the equation: momentum = mass × velocity [ p = m v ] momentum, p, in kilograms per second, kg m/s mass, m, in kilograms, kg velocity, v, in metres per second, m/s 90-1 76-8 92-3, 214-6 4.5.7.2 Conservation of momentum In a closed system, the total momentum before an event is equal to the total momentum after the event. This is called conservation of momentum. Students should be able to use the concept of momentum as a model to: • describe and explain examples of momentum in an event, such as a collision • (physics only) complete calculations involving an event, such as the collision of two objects. 90-1 76-8 92-3, 214-6 4.5.7.3 Changes in momentum (physics only) When a force acts on an object that is moving, or able to move, a change in momentum occurs. 90-1 76-8 92-3, 214-6
scholastic-aqa-physics-gcse-map-1648371.docx