Stopping distance and road safety Quiz
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5 questions, one answer each
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1. A car has a thinking distance of 14 m and a braking distance of 48 m. What is its stopping distance?
- A. 34 m
- B. 62 m
- C. 672 m
- D. 48 m
2. Which factor increases braking distance but not thinking distance?
- A. Tiredness
- B. Using a mobile phone
- C. Alcohol
- D. An icy road
3. A car's speed doubles. By what factor does its kinetic energy increase?
- A. Four times
- B. Twice
- C. It stays the same
- D. Eight times
4. Why does a lower speed limit outside a school improve safety?
- A. It increases the driver's reaction time
- B. It gives the car more kinetic energy
- C. It gives a shorter thinking distance and braking distance
- D. It increases the car's mass
5. How does a seat belt reduce injury in a sudden stop?
- A. It makes the car stop faster
- B. It applies a backwards force that stops the passenger with the car
- C. It reduces the passenger's mass
- D. It pushes the passenger forwards