Picture from Encarta

Gravitational Forces

Gravitational Forces
Because the Moon has significantly less mass than Earth, the weight of an object on the Moon’s surface is only one-sixth the object’s weight on Earth’s surface. This graph shows how much an object that weighs w on Earth would weigh at different points between the Earth and Moon. Since the Earth and Moon pull in opposite directions, there is a point, about 346,000 km (215,000 mi) from Earth, where the opposite gravitational forces would cancel, and the object's weight would be zero.
© Microsoft Corporation. All Rights Reserved.
Appears in these articles:
Gravitation; Moon
* Exclusively for MSN Encarta Premium Subscribers. Join Now
Advertisement

Englishtown: Learn English online
Upgrade your Encarta experience
Encarta RSS Feeds
© 2008 Microsoft