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Oak National Academy
12 questions
Which force is caused by two solid surfaces moving across each other?
When a vehicle increases its speed, it is accelerating and when it decreases its speed, it is ___.
The figure shows a dynamics trolley just after it has reached the end of a ramp.Which of the following statements help explain why the trolley slows down when it has left the ramp?
Which of the following is the correct equation for calculating the kinetic energy of an object?
A motorcycle is travelling at 9.00 m/s. How far will the motorcycle travel in 1.40 s?
A motorcycle has a mass of 200 kg and is travelling at 9.00 m/s.Calculate the kinetic energy of the motorcycle. Give the unit.
Match the following key terms to their definitions.
Where is most of the energy from the kinetic store transferred to when a vehicle brakes and slows down?
Which of the following factors affect both the thinking distance and the braking distance of a vehicle?
A driver with a reaction time of 1.2 s is travelling at 30 m/s along a road.Calculate the thinking distance for this driver. Give the correct unit.
The driver of a lorry travelling at 12.0 m/s notices a hazard. The driver's reaction time is 0.80 s and, at this speed, the braking distance of the lorry is 25.0 m. Calculate the stopping distance.
A car is travelling at 30 m/s and, at this speed, its braking distance is 75 m.Calculate the minimum reaction time needed to stop the car in less than 90 m. Give the correct unit.
