Question detail
A spring has a spring constant of 150 N/m and is stretched by 0.2 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
Question
Type
exam_style
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
A spring has a spring constant of 150 N/m and is stretched by 0.2 m. Calculate the elastic potential energy stored in the spring.
Answer
The elastic potential energy stored in the spring is 3 J.
Explanation
This answer stays anchored to Changes in energy and uses the approved objective: Calculate elastic potential energy stored in a stretched spring within its limit of proportionality..
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.
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