Question detail
A cyclist doubles speed while reaction time stays the same. What happens to thinking distance?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Forces and motion
Question
- A. Thinking distance increases because the cyclist travels further during the same reaction time.
- B. Thinking distance stays fixed because reaction time is fixed.
- C. Thinking distance is the same as braking distance.
- D. Thinking distance only depends on road surface.
Answer
The correct answer is: Thinking distance increases because the cyclist travels further during the same reaction time.
Explanation
The correct option is Thinking distance increases because the cyclist travels further during the same reaction time.. This fits Distance-time graphs in Forces and motion because it uses the named force or motion relationship in the situation, gives the correct unit or graph meaning where needed, and avoids the specific misconception in the distractors.
Common mistake
Gradient Misinterpretation
Students often confuse the gradient of a distance-time graph with the total distance travelled instead of recognizing it as speed.
Emphasize that the gradient represents speed, which is the rate of change of distance over time. Practice calculating speed using the formula: speed = distance/time.
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