A-LevelPhysicsGravitational fields9702/12 · Oct/Nov 2022 · Q191 Mark

An object of mass m is dropped onto the surface of two planets, X and Y, which have no atmosphere. The height from which the object is dropped and the change in gravitational potential energy of the object, for each planet, are given in the table. [Table showing height and change in gravitational potential energy for planet X and planet Y] The acceleration of free fall near the surface of planet X is gx. What is the acceleration of free fall near the surface of planet Y?

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A3/4 gx

B4/3 gx

C3gx

D4gx

✓ Correct answer

C: 3gx

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Topic: Gravitational fields, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2022 Paper 1 Variant 2, question 19.

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