What is Force?

Force is a push or a pull applied on an object.

Whenever you push a door, pull a drawer, kick a football, or lift a bag, you are applying force.

In simple words:
👉 Force is anything that can make an object move, stop, change direction, or change shape.

📌 Effects of Force

A force can do many things. Here are the main effects:

1. Force can change the state of motion

• If an object is at rest, force can make it start moving.
  Example: Kicking a football makes it move.

• If an object is moving, force can make it stop.
  Example: Catching a ball stops it from moving.

2. Force can change the speed of an object

• Force can increase speed.
  Example: When you pedal a bicycle harder, it goes faster.

• Force can decrease speed.
  Example: Applying brakes reduces the speed of a car.

3. Force can change the direction of motion

Even without stopping an object, force can change its direction.
Example: A cricket ball changes direction when a batsman hits it.

4. Force can change the shape or size of an object

Force can squeeze, stretch, bend, or press things to change their shape.
Examples:

• Pressing a rubber ball

• Stretching a spring

• Molding clay

5. Force can stop a moving body

A force is needed to stop something that is already moving.
Example:

• A goalkeeper uses his hands to stop a football.

• Friction between road and tyres helps stop a bicycle.