The mutual force of attraction between any two bodies in the universe is called gravitational force. The nature of gravitational force can be listed as below:

• Gravitational force is attractive in nature.
• Gravitational force of a body with big mass on a body of small mass is only noticeable.
• Gravitational force between two bodies is directly proportional to the product of their masses.
• Gravitational force between two bodies is inversely proportional to the distance between their centres.