Factors affecting braking distance 2

Physics (Combined Science) · GCSE · AQA · AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation · Specification point · 6.5.4.3.4 · Forces · Forces and motion

Energy transfers during braking

Braking force and deceleration

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Learning Objectives

6.5.4.3.4 Factors affecting braking distance 2

Content	Key opportunities for skills development
$When a force is applied to the brakes of a vehicle, work done by the friction force between the brakes and the wheel reduces the kinetic energy of the vehicle and the temperature of the brakes increases. The greater the speed of a vehicle the greater the braking force needed to stop the vehicle in a certain distance. The greater the braking force the greater the deceleration of the vehicle. Large decelerations may lead to brakes overheating and/or loss of control. Students should be able to:$
$explain the dangers caused by large decelerations$	$WS 1.5$

Content

Key opportunities for skills development

When a force is applied to the brakes of a vehicle, work done by the friction force between the brakes and the wheel reduces the kinetic energy of the vehicle and the temperature of the brakes increases. The greater the speed of a vehicle the greater the braking force needed to stop the vehicle in a certain distance. The greater the braking force the greater the deceleration of the vehicle. Large decelerations may lead to brakes overheating and/or loss of control. Students should be able to:

explain the dangers caused by large decelerations

WS 1.5

Factors affecting braking distance 2 (6.5.4.3.4) | AQA GCSE Combined Science: Trilogy (8464) — Physics — Foundation | KnowledgeSet