1.32 understand gravitational field strength, g, and recall that it is different on other planets and the moon from that on the Earth

1.32 understand gravitational field strength, g, and recall that it is different on other planets and the moon from that on the Earth

The strength of gravity on a planet or moon is called its gravitational field strength. But this force depends upon

• The masses of the two objects
• The distance between the masses

The greater the mass the greater the gravitional force. As the mass the mass in everyday objects are less, gravitional force is almost negligible. It is noticeable in planets, stars, sun etc.

The greater the distance the lower the gravitional force. If you move 50000 km away from Earth, you won’t fall down as the force is between you and the earth is very weak.

Gravitional Field Strength of Planets and Moon