P4 Change in Momentum - Car Safety Features 0.0 / 5 ? PhysicsForces and MotionGCSEOCR Created by: DanielBurtCreated on: 06-04-17 10:45 Crumple Zones Crumple Zones crumple upon impact, increasing the time taken for the car to stop; If Force = Change in Momentum / Time Then the larger the time taken for a change in momentum, the smaller the force. 1 of 4 Air Bags Air Bags (similar to Crumple Zones, slow you down gradually). So if Force = Change in Momentum / Time Then the greater the time for a change in momentum, the smaller the force 2 of 4 Seat Belts Seat Belts stretch slightly, increasing the time taken for the wearer to stop. This reduces the Force acting on the person's chest. If Force = Change in Momentum / Time Then the larger the time taken for a change in momentum, the smaller the force. 3 of 4 Cycle and Motorcycle Helmets Helmets provide padding that increases the time taken for your head to come to a stop if it hits something hard. If Force = Change in Momentum / Time Then the larger the time taken for a change in momentum, the smaller the force. 4 of 4
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