Question detail
Which option best applies extension 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. The point beyond which the material will not return to its original shape — graph focus for extension
- 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: The point beyond which the material will not return to its original shape — graph focus for extension
Explanation
The correct option is The point beyond which the material will not return to its original shape — graph focus for extension. The point beyond which the material will not return to its original shape — graph focus for extension is correct because it matches the approved learning objective to interpret force-extension graphs in terms of energy stored where appropriate. 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
Misinterpreting the slope as energy
Students often think the slope of a force‑extension graph directly gives the elastic potential energy stored, rather than the spring constant.
Explain that the slope is the spring constant (k) and that elastic potential energy is calculated using 0.5 k e², where e is the extension in metres.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.