Question detail
In energy-transfer questions, what does the word system mean?
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. The object or group of objects selected for the energy analysis.
- B. Only one object that cannot transfer energy to anything else.
- C. A store where energy is destroyed after it has been used.
- D. A component that supplies electric current in a circuit.
Answer
The object or group of objects selected for the energy analysis.
Explanation
A system is chosen by the person analysing the situation. It may be one object or several objects considered together. Once the boundary is chosen, energy stores and transfers can be described clearly.
Common mistake
Misunderstanding System Definition
Students often think a system can only be a single object rather than a group of objects considered together.
Emphasize that a system can include multiple objects interacting with each other, not just one.
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