Question detail
Which option best applies physics only for Levers and gears (physics only) 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
Moments, levers and gears (physics only)
Question
- A. To increase the size of a force — calculation focus for physics only
- B. This confuses speed and velocity and does not answer Levers and gears (physics only).
- 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 Moments, levers and gears (physics only).
Answer
The correct answer is: To increase the size of a force — calculation focus for physics only
Explanation
The correct option is To increase the size of a force — calculation focus for physics only. To increase the size of a force — calculation focus for physics only is correct because it matches the approved learning objective to (Physics only) Explain that gears can change the size of a force or the speed of rotation. This answer belongs to Levers and gears (physics only) within Moments, levers and gears (physics only), so it must use precise AQA GCSE Physics forces and motion vocabulary. The other options are wrong because they either confuse speed and velocity, omit the required force or motion condition, or move away from the exact subtopic being tested.
Common mistake
Misunderstanding Gear Functionality
Students often think that gears only change the size of a force without realizing they also affect the speed of rotation.
Emphasize that when gears are used, a larger gear driven by a smaller gear will reduce the speed of rotation but increase the turning effect, while a smaller gear driven by a larger gear will increase the speed of rotation but decrease the turning effect.
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