Question detail
Which of the following best describes the energy-store change when a moving object collides with a wall?
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. Kinetic energy increases
- B. Kinetic energy decreases
- C. Potential energy increases
- D. Thermal energy decreases
Answer
Kinetic energy decreases
Explanation
The correct option is "Kinetic energy decreases". Kinetic energy decreases is right because it directly matches Energy stores and systems: Describe energy-store changes when a moving object hits an obstacle.. The other options are less suitable because they change the required Physics relationship, confuse the relevant energy store or use a distractor that does not answer the question.
Common mistake
Misunderstanding Energy Transfer
Students often think that the energy of a moving object is completely transferred to the obstacle upon impact, without considering energy losses such as sound or heat.
Students should remember that not all energy is transferred; some energy is converted to other forms, like sound or thermal energy, during the collision.
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