Thinking, Braking and Stopping Distance

Question 1

What is the formula for stopping distance?

Answer 1

stopping distance = thinking distance + braking distance

Question 2

What is thinking distance?

Answer 2

The distance a vehicle travels when applying the brakes after realising they need to stop.

Question 3

What is braking distance?

Answer 3

The distance a vehicle travels after the driver has applied the brake.

Question 4

What 4 factors affect reaction time?

Answer 4

Tiredness.
Drugs.
Alcohol.
Distractions.

Question 5

What 3 factors affect braking distance?

Answer 5

Poor road conditions.

Poor weather conditions.

Poor vehicle conditions.

Question 6

Increase in reaction time _____________ the thinking distance.

Answer 6

increases

Question 7

When a force is applied to the brakes of a vehicle, there is _______________ by the ___________________________________.

This reduces the _______________ of the vehicle, ______________________ and causing the __________________ of the brakes to increase.

Answer 7

work done
friction between the brakes and wheel

kinetic energy
slowing it down
temperature

Question 8

Why may a driver lose control of a vehicle because of a large deceleration?

Answer 8

May cause the brakes to overheat, so the driver may also lose control of the vehicle.

Question 9

Explain why the stopping distance of the car increases if the driver is very tired.
(2)

Answer 9

The reaction time will increase,
increasing the thinking distance and the stopping distance.