A-LevelPhysicsGravitational fields9702/12 · Oct/Nov 2014 · Q141 Mark

A mass m is situated in a uniform gravitational field. [Figure 14.1] When the mass moves through a displacement x, from P to Q, it loses an amount of potential energy E. Which row correctly specifies the magnitude and the direction of the acceleration due to gravity in this field?

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Amagnitude E/mx, direction →

Bmagnitude E/mx, direction ←

Cmagnitude E/x, direction →

Dmagnitude E/x, direction ←

✓ Correct answer

A: magnitude E/mx, direction →

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Topic: Gravitational fields, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2014 Paper 1 Variant 2, question 14.

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