Question detail
When a vehicle slows down, which energy store primarily decreases?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
- A. Gravitational potential energy
- B. Kinetic energy
- C. Elastic potential energy
- D. Chemical energy
Answer
Kinetic energy
Explanation
The kinetic energy of the vehicle decreases as it slows down, while other energy stores remain unchanged.
Common mistake
Misunderstanding Energy Transfer
Students often think that energy is lost when a vehicle slows down, rather than being transferred to another energy store.
Explain that when a vehicle slows down, its kinetic energy is converted into thermal energy due to friction, which is stored in the brakes and the road.
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