Question detail
A spring has a spring constant of 200 N/m and is stretched by 0.5 m. What is the elastic potential energy stored in the spring?
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. 25 J
- B. 50 J
- C. 100 J
- D. 200 J
Answer
50 J
Explanation
The correct option is "50 J". 50 J is right because it answers the Changes in energy objective: Calculate elastic potential energy stored in a stretched spring within its limit of proportionality.. The distractors are incorrect because they either use the wrong Physics quantity, confuse an energy store with a transfer, or ignore the wording of this question.
Common mistake
Misunderstanding Elastic Potential Energy Calculation
Students often confuse the elastic potential energy formula Ee = 0.5 x k x e^2 by misidentifying the spring constant (k) and extension (e).
Ensure to correctly identify k as the spring constant in N/m and e as the extension in meters before substituting values into the formula.
Related flashcards
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Related practice questions
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