EASY
AS and A Level
IMPORTANT
Earn 100

Calculate the gravitational force of attraction between two objects separated by a distance of and each having a mass of .

Important Questions on Gravitational Fields
EASY
AS and A Level
IMPORTANT
Calculate the gravitational force of attraction between two asteroids separated by a distance of and each having a mass of .

EASY
AS and A Level
IMPORTANT
Calculate the gravitational force of attraction between a satellite of mass orbiting the Earth at a distance of from the Earth's centre. (The mass of the Earth is).

EASY
AS and A Level
IMPORTANT
Estimate the gravitational force of attraction between two people sitting side by side on a park bench. How does this force compare with the gravitational force exerted on each of them by the Earth (in other words, their weight)?

MEDIUM
AS and A Level
IMPORTANT
Mount Everest is approximately high. Estimate how much less a mountaineer of mass (including backpack) would weigh at its summit, compared to her weight at sea level. Would this difference be measurable with bathroom scales?

EASY
AS and A Level
IMPORTANT
Calculate the gravitational field strength close to the surface of the Moon.

MEDIUM
AS and A Level
IMPORTANT
Calculate the gravitational field strength close to the surface of the Sun.

EASY
AS and A Level
IMPORTANT
Suggest how your answers help to explain why the Moon has only a thin atmosphere, while the Sun has a dense atmosphere.

EASY
AS and A Level
IMPORTANT
Calculate the Earth's gravitational field strength at the position of the Moon.
