Some Ideas about Gravity

Before we go further, there are some general ideas you need to know. The first is the idea of ‘Centre of Gravity’. We will also look at the idea of ‘Weight and Weighing’. Finally, we will see what happens when we drop things from a height. This is gravity in action.

Centre of Gravity

Gravity affects every part of an object, but there is one point where the object’s whole weight seems to act. This is its centre of gravity.

An object can often be balanced at its centre of gravity.