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CAIE A-Level Physics A2 13 Gravitational Fields Questions

Practise calculating gravitational field strength, force, potential and energy, deriving g = GM/r² and applying Newtonian orbital or satellite models.

Syllabus
2028–2030
Course
Physics 9702
Level
A2

Exam points

  • represent gravitational fields and calculate field strength from force, mass and point-mass relationships
  • apply Newtonian gravitation to orbital motion and geostationary satellites
  • derive and use g = GM/r² and explain field variation near Earth
  • calculate gravitational potential and potential energy and interpret work and sign

Covered syllabus points

13.1 Gravitational field13.2 Gravitational force between point masses13.3 Gravitational field of a point mass13.4 Gravitational potential

Question 1

[Maximum number: 2]

Another satellite is in a circular orbit around the Earth with the same orbital radius and period as the satellite in (c).

Despite having the same orbital period, the orbit of this satellite is not geostationary.

Suggest two ways in which the orbit of this satellite could be different from the orbit of the satellite in (c).

1

2

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