All Textbook Topics - Forces and Motion - Gravity Introduction - All masses have a gravitational field around them, but any effect is weak unless the mass is very large

All masses have a gravitational field around them, but any effect is weak unless the mass is very large

All objects with mass have a gravitational field around them. This diagram shows the gravitational field lines around the Earth:

The effect of gravity is not normally noticeable unless the mass is very large, this is why we easily observe gravity on the Earth, it has a huge mass.

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A gravitational field is a region where a mass will experience a force

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