Question detail
Which option best applies pressure for Pressure on a surface (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
Pressure and pressure differences in fluids (physics only)
Question
- A. The sharp blade has a smaller area — misconception focus for pressure
- B. This confuses force and pressure and does not answer Pressure on a surface (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 Pressure and pressure differences in fluids (physics only).
Answer
The correct answer is: The sharp blade has a smaller area — misconception focus for pressure
Explanation
The correct option is The sharp blade has a smaller area — misconception focus for pressure. The sharp blade has a smaller area — misconception focus for pressure is correct because it matches the approved learning objective to (Physics only) Apply pressure ideas to everyday examples such as sharp blades, snowshoes or high heels. This answer belongs to Pressure on a surface (physics only) within Pressure and pressure differences in fluids (physics only), so it must use precise AQA GCSE Physics forces and motion vocabulary. The other options are wrong because they either confuse force and pressure, omit the required force or motion condition, or move away from the exact subtopic being tested.
Common mistake
Misunderstanding Pressure Application
Students often confuse how pressure is applied in everyday examples, such as thinking that a sharp blade exerts less pressure than a flat surface for the same force.
To fix this, students should remember that pressure is defined as force per unit area. A sharp blade has a smaller area, which means it exerts greater pressure compared to a flat surface when the same force is applied. In Pressure on a surface (physics only), correct the mistake by naming the relevant force or motion quantity and checking force and pressure.
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