Gravity
 

Description

All objects attract one another. The force of attraction which an object exerts is in proportion to its mass. The Earth has a large mass, and so the force of attraction between it and other objects is big, and this force pulls objects to the Earth. This force is called the ‘weight’ of an object. The weight of an object is a measure of how much the Earth pulls on it.

When you lift a bucket two forces are at work. These are the upward force or pull exerted by you and the downward pull of gravity.