AQA · GCSE · Physics · Higher
Reaction Time and Thinking Distance
The reaction time of the driver was measured.
How can the reaction time of the driver be used to calculate the thinking distance?
Write your answer first. You can study the marking guidance whenever you need it.
Study the marking See what earns credit and compare it with a full-mark answer.
Marking points
- 1 States that thinking distance is found by multiplying the car's speed by the reaction time.
Full-mark answer
Multiply the speed of the car by the driver's reaction time.
Why this answer loses marks
Divide the speed by the reaction time.
Thinking distance uses the distance relationship, so speed and reaction time must be multiplied.