Question detail
What is the unit of work done when a force moves an object?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Work done and energy transfer
Question
- A. Newton
- B. Joule
- C. Watt
- D. Pascal
Answer
Joule
Explanation
Work done is measured in joules, which is defined as the energy transferred when a force of one newton moves an object one meter.
Common mistake
Misunderstanding Energy Transfer
Students often confuse the concept of energy transfer with the total energy involved in braking, failing to recognize that braking forces specifically transfer energy from the vehicle's kinetic energy store.
To fix this, students should focus on the role of braking forces in reducing kinetic energy and understand that energy is transferred to thermal stores during braking.
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