Stopping safely (Edexcel GCSE Physics): Flashcards
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13 cards from this deck
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Practise the cards
13 cards from this deck
Stopping distance components
Stopping distance components
Thinking distance meaning
Thinking distance meaning
Distance travelled during driver's reaction time
Braking distance meaning
Braking distance meaning
Distance travelled while brakes applied until stop
Thinking distance relationship with speed
Thinking distance relationship with speed
Directly proportional to speed
Braking distance relationship with speed
Braking distance relationship with speed
Squared relationship with speed
Effect of doubling speed on braking distance
Effect of doubling speed on braking distance
Braking distance quadruples
How wet/icy roads affect braking distance
How wet/icy roads affect braking distance
Decrease friction, increase skidding, longer braking distance
How worn tyres affect braking distance
How worn tyres affect braking distance
Lower friction, more skidding, longer braking distance
How worn brakes affect braking distance
How worn brakes affect braking distance
Reduced friction & braking force, longer braking distance
Typical driver reaction time
Typical driver reaction time
Approximately 1 second
Energy transfer when braking
Energy transfer when braking
Kinetic energy to thermal energy (heat) in brakes
Typical car mass
Typical car mass
Approximately 1000 kg
Braking distance at 30 mph
Braking distance at 30 mph
14 m