Factors Affecting Braking Distance (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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12 cards from this deck
What does braking distance depend on?
What does braking distance depend on?
The effectiveness of the braking force
How does speed affect braking distance?
How does speed affect braking distance?
Faster speed = longer braking distance
How do wet/icy roads affect braking distance?
How do wet/icy roads affect braking distance?
Reduce friction → skidding → longer distance
Why do wet/icy roads increase braking distance?
Why do wet/icy roads increase braking distance?
They reduce friction between tyres and road
How do worn tyres affect braking distance?
How do worn tyres affect braking distance?
Lower friction → more skidding → longer distance
Why do worn tyres increase braking distance?
Why do worn tyres increase braking distance?
Reduced tread lowers friction with road
How do worn brakes affect braking distance?
How do worn brakes affect braking distance?
Less friction & braking force → longer distance
Why do worn brakes increase braking distance?
Why do worn brakes increase braking distance?
Reduced friction between brakes and wheels
Braking distance at 20mph
Braking distance at 20mph
6m
Braking distance at 30mph
Braking distance at 30mph
14m
Braking distance at 50mph
Braking distance at 50mph
38m
Braking distance at 70mph
Braking distance at 70mph
75m