Everyday motion - OCR Gateway

1

What is a typical speed for walking?

2

What is the typical value for the human reaction time?

3

Which equation correctly relates stopping distance, braking distance and thinking distance?

4

Which of these can increase the reaction time of a driver?

5

Which of these factors affect thinking distance but NOT braking distance?

6

What happens to the thinking distance when the speed of a car doubles?

7

Which of these affect the thinking distance and the braking distance of a moving vehicle?

8

The speed of a car doubles from 20 mph to 40 mph. What affect does this have on the braking distance of the car?

9

Why are crumple zones used as car safety features?

10

What is the force needed to accelerate a small lorry to its top speed on a single carriageway? Use 2,500 kg for the mass of the lorry and 3 m/s2 for the acceleration.