Question detail
A spring with a spring constant of 150 N/m is compressed by 0.4 m. Calculate 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. 12 J
- B. 24 J
- C. 30 J
- D. 48 J
Answer
12 J
Explanation
The correct option is "12 J". 12 J is right because it directly matches Changes in energy: Calculate elastic potential energy stored in a stretched spring within its limit of proportionality.. The other options are less suitable because they change the required Physics relationship, confuse the relevant energy store or use a distractor that does not answer the 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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