End of Topic Test - Gravitational Fields

Test yourself on End of Topic Test - Gravitational Fields

• Which of the following forces is NOT repulsive?

• What do the gravitational field lines close to the surface of the Earth appear to be?

• Which is the correct relation between the gravitational field strength and the gravitational force?

• What is the relationship between orbital period and orbital radius of an object?

• What happens to the period of a planet's orbit when the radius doubles?