Question detail
Which of the following correctly identifies the relationship between extension and elastic potential energy?
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. Directly proportional
- B. Inversely proportional
- C. No relationship
- D. Exponential relationship
Answer
Directly proportional
Explanation
The elastic potential energy stored in a spring is directly proportional to the square of the extension, meaning as extension increases, elastic potential energy increases.
Common mistake
Confusing Units of Measurement
Students often confuse elastic potential energy measured in joules with spring constant measured in newtons per metre.
Remember that elastic potential energy is always expressed in joules, while the spring constant is expressed in newtons per metre. Keep the units distinct when solving problems.
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