Question detail
If a force of 10 N moves an object 5 m, how much work is done?
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. 50 J
- B. 15 J
- C. 5 J
- D. 100 J
Answer
50 J
Explanation
Work done is calculated using the formula W = F x s. Here, W = 10 N x 5 m = 50 J.
Common mistake
Misunderstanding Work Done Against Friction
Students often confuse the concept of work done against friction with the total energy transferred, failing to recognize that this work specifically results in energy being transferred to thermal stores.
To fix this, students should focus on the definition of work done as energy transferred when a force moves an object, and specifically understand that work done against friction leads to an increase in thermal energy.
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