The overall stopping distance of a car is the sum of the thinking distance and the braking distance.
The Table shows three conditions that can affect the stopping distance.
Table
| Condition | Effect on thinking distance | Effect on braking distance |
|---|---|---|
| the road is icy | ||
| the driver has drunk alcohol | ||
| the tyres are worn |
Complete the Table.
Write increases or no change in each empty box.
Explain why the braking distance is greater when the road is icy.
The car is now carrying four passengers and heavy luggage. The braking force is the same.
Explain the effect on the braking distance.
50 exam-style questions on OCR GCSE Physics 8.1 Physics on the move, covering 8.1.1 Typical everyday speeds, 8.1.2 Typical everyday accelerations, 8.1.3 Ratios, units and rates on the road, 8.1.4 Human reaction times, 8.1.5 Factors affecting stopping distance, 8.1.6 Stopping distances at different speeds, 8.1.7 Dangers of large decelerations, 8.1.8 Estimating forces in road situations, and 8.1.9 Estimating the effects of large accelerations. Each one has a worked solution and a mark scheme showing where the marks go.