Question detail
If a spring has a spring constant of 200 N/m and is extended by 0.5 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
If a spring has a spring constant of 200 N/m and is extended by 0.5 m, calculate the elastic potential energy stored in the spring.
Answer
The elastic potential energy stored in the spring is 25 joules.
Explanation
This answer stays anchored to Changes in energy and uses the approved objective: Identify elastic potential energy in joules, spring constant in newtons per metre and extension in metres..
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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