Things About Gravity And Inertia

Gravity is a fundamental force that attracts two bodies toward each other, proportional to their masses and inversely proportional to the square of the distance between their centers. It is responsible for keeping planets in orbit around stars and objects on the ground.

Inertia is the property of an object to resist changes in its state of motion. An object at rest stays at rest, and an object in motion continues in motion at a constant velocity unless acted upon by an external force.

Gravity

• Definition: A force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between them.

• Example: An apple falling from a tree is pulled towards the Earth due to gravity.

Inertia

• Definition: The tendency of an object to resist changes in its state of motion; an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

• Example: A passenger lurching forward in a car that suddenly stops demonstrates inertia.