Question detail
What happens to the energy stores of a vehicle when it slows down?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
What happens to the energy stores of a vehicle when it slows down?
Answer
When a vehicle slows down, its kinetic energy decreases. This energy is transformed into thermal energy due to friction between the vehicle's brakes and the wheels, as well as air resistance.
Explanation
This answer demonstrates an understanding of energy transformation in a system, specifically how kinetic energy is converted to thermal energy when a vehicle decelerates. It tests the student's ability to describe energy-store changes.
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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