IGCSE · 1 · multiple choice
Motion, forces and energy · Question 6
Motion, forces and energy · Original GioPhysics question with a detailed, mark-by-mark answer guide.
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multiple choice1 mark
A diver is 15 m below the surface of a lake. The density of the water is 1000 kg/m³. What is the increase in pressure on the diver caused by the water above her?
- A
1.5 × 10³ Pa
- B
1.5 × 10⁴ Pa
- C
1.5 × 10⁵ Pa
- D
1.5 × 10⁶ Pa
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Answer overviewCorrect answer: C — 1.5 × 10⁵ Pa
01
1 markAnswer and reasoning
How to approach it
Predict from the governing principle before looking for a matching option. Then reject alternatives by checking direction, units, limiting behaviour or the physical meaning of each statement.
- 1
The correct choice is C: 1.5 × 10⁵ Pa
- 2
All four are the same digits, so the item tests whether the candidate can carry a power of ten through ρgh rather than whether they know the formula. B drops the factor of g.
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