Question detail
Which option best applies equation for Elastic potential energy in AQA GCSE Physics Forces?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Forces and elasticity
Question
- A. Because the spring’s deformation is fully reversible and follows Hooke’s law — graph focus for equation
- B. This confuses elastic and plastic deformation and does not answer Elastic potential energy.
- C. This is too vague because it does not use the force or motion quantity named in the objective.
- D. This reverses the physical cause and effect for Forces and elasticity.
Answer
The correct answer is: Because the spring’s deformation is fully reversible and follows Hooke’s law — graph focus for equation
Explanation
The correct option is Because the spring’s deformation is fully reversible and follows Hooke’s law — graph focus for equation. Because the spring’s deformation is fully reversible and follows Hooke’s law — graph focus for equation is correct because it matches the approved learning objective to explain why the equation applies within the elastic behaviour of the spring. This answer belongs to Elastic potential energy within Forces and elasticity, so it must use precise AQA GCSE Physics forces and motion vocabulary. The other options are wrong because they either confuse elastic and plastic deformation, omit the required force or motion condition, or move away from the exact subtopic being tested.
Common mistake
Misunderstanding Elastic Behaviour
Students often think that the elastic potential energy equation applies outside the elastic limit of the spring.
Emphasize that the equation for elastic potential energy is only valid when the spring is within its elastic limit, meaning it returns to its original shape after the force is removed.
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