Question detail
Which option best applies depth for Pressure in liquids (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. Pascals — calculation focus for depth
- B. This confuses force and pressure and does not answer Pressure in liquids (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: Pascals — calculation focus for depth
Explanation
The correct option is Pascals — calculation focus for depth. Pascals — calculation focus for depth is correct because it matches the approved learning objective to (Physics only) Identify density in kilograms per metre cubed and depth in metres when using p = hρg. This answer belongs to Pressure in liquids (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
Common Mistake in Density and Depth Identification
Students often confuse the units for density and depth when using the equation p = hρg, mistakenly using grams per cubic meter for density or centimeters for depth.
Always remember that density should be in kilograms per cubic meter (kg/m³) and depth in meters (m) when applying the equation p = hρg.
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