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Oak ScienceTest · Science

Stopping safely

The starter and exit quiz of the lesson “Stopping safely”, from the unit “Forces make things change” (Year 11 Science) by Oak National Academy.

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Oak National Academy

12 questions

  1. Match the following quantities to their unit.
  2. Which of the following is the correct equation for stopping distance?
  3. Which of the following is the correct equation for momentum?
  4. A ball is dropped vertically from 10 m. As the ball falls, which of the following statements are correct?
  5. A car has a mass of 800 kg and velocity of 4.0 m/s.Calculate the momentum of the car.
  6. A motorcycle of mass 200 kg, slows from 14 m/s to 12 m/s. What is the change of momentum for the motorcycle?
  7. Match the following key terms to their definitions.
  8. A lorry is attempting to slow down to a stop. What will happen to the stopping time and stopping distance if the braking force increases?
  9. Match each of the following safety features to its function.
  10. Why does padding decrease the size of impact forces?
  11. A lorry of mass 5000 kg travels at a velocity of 18 m/s. The brakes produce a braking force of 15 000 N on the wheels.Calculate the stopping time for the lorry. Give the unit.
  12. Two cars have the same momentum of 12 000 kg m/s. It takes one car 0.20 s to stop, and the other one stops in 0.05 s.Calculate the difference in the stopping forces acting on the cars.

License: OGL

Stopping safely · Examplary