Question detail
Which option best applies spring for Required practical: force and extension 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. It becomes permanently deformed — application focus for spring
- B. This confuses elastic and plastic deformation and does not answer Required practical: force and extension.
- 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: It becomes permanently deformed — application focus for spring
Explanation
The correct option is It becomes permanently deformed — application focus for spring. It becomes permanently deformed — application focus for spring is correct because it matches the approved learning objective to determine spring constant from the gradient of the linear section of the graph. This answer belongs to Required practical: force and extension 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 Gradient Interpretation
Students often confuse the gradient of a force-extension graph with the total force applied, rather than understanding it represents the spring constant.
To fix this, students should practice calculating the gradient from the linear section of the graph and relate it directly to the spring constant, reinforcing the concept that the gradient indicates stiffness.
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