Effects of forces

A force can change the state of motion:

• Force can make a stationary object move or make a moving object move faster.
• A toy car can be made to move by giving it a little push. A stationary football can be made to move by giving it a small push.
• Thus, a force can make a stationary object move, and it can be also make an already moving object move faster.

Force can slow down or completely stop a moving object.

• A moving toy car can be made to stop by applying a force. A bicycle can be stopped or stopped down by applying the brakes.

Force can change the direction of a moving object.

• In football, the players can change the direction of the moving ball by kicking in a different direction.

Force can change the shape of an object:

• The shape of a rubber band changes when it is pulled.
• For example, objects made of glass and clay break easily when we apply force on them.

Shape before pressing

Shape after pressing