Gravitational Fields
Definitions: Gravitational Fields
Exam question
Define gravitational field at a point.
9702/41 · Oct/Nov 2025 · Q3(a)
Model answer
The gravitational force per unit mass on a small test mass at the point.
Exam question
State Newton’s law of gravitation.
9702/42 · Oct/Nov 2025 · Q2(a)
Model answer
The gravitational force between two point masses is directly proportional to the product of their masses and inversely proportional to the square of their separation.
Exam question
Define gravitational potential at a point.
9702/41 · May/Jun 2025 · Q1(a)
Model answer
The work done per unit mass by an external agent in moving a small test mass from infinity to the point without changing its kinetic energy.