A-LevelPhysicsForces, density and pressure9702/12 · Oct/Nov 2012 · Q161 Mark

A stationary body floats in water. [Figure showing a block floating in water] Which statement about the forces acting on the body is correct?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

AThe gravitational force is equal to the viscous force.

BThe gravitational force is greater than the upthrust.

CThe upthrust is zero.

DThe viscous force is zero.

✓ Correct answer

D: The viscous force is zero.

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2012 Paper 1 Variant 2, question 16.

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