Estimating Decelerating Forces (AQA GCSE Physics Combined Science): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is deceleration?
What is deceleration?
A reduction in speed
What often causes a decelerating force when a car slows down?
What often causes a decelerating force when a car slows down?
Friction or air resistance
Which formula estimates the decelerating force?
Which formula estimates the decelerating force?
What is the unit for decelerating force ?
What is the unit for decelerating force ?
Newtons
How does a heavier vehicle affect the decelerating force needed?
How does a heavier vehicle affect the decelerating force needed?
Requires more force
What force stops a 1,200 kg car going 30 m/s in 5 seconds?
What force stops a 1,200 kg car going 30 m/s in 5 seconds?
7,200 N
How does speed affect the decelerating force needed to stop in a given time?
How does speed affect the decelerating force needed to stop in a given time?
Faster needs greater force
How do slippery surfaces like ice affect deceleration?
How do slippery surfaces like ice affect deceleration?
Reduce friction, harder to decelerate
Why do braking distance and stopping time increase with speed?
Why do braking distance and stopping time increase with speed?
Greater decelerating forces required
What plays a crucial role in generating the necessary decelerating force?
What plays a crucial role in generating the necessary decelerating force?
Friction between tyres and road