what are effects of force on moving objects
Answers
Answer:
Figure shows a teenage boy applying a force to push a ball and a young boy applying a force to pull a kite.
The action of a force can cause
- a stationary object to move,
- a moving object to change its speed,
- a moving object to change its direction of motion,
- an object to change in size and shape.
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Definitions
A push or a pull acting on an object is called force. The SI unit of force is newton (N). We use force to perform various activities. In common usage, the idea of a force is a push or a pull.
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Force has the following effects on objects :-
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. Similarly, a stationary football can be made to move by giving it a small push (i.e., by kicking it). If we have an already moving toy car or ball, we can make it move faster by giving it a push in the direction in which it is moving. Thus, a force can make a stationary object move, and it can 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 slowed down by applying the brakes. In football, the force applied by the goalkeeper stops the ball hit towards the goal. In order to stop or slow down a moving body, we need to apply a force in a direction opposite to the direction of motion of the moving body.
Force can change the direction of a moving object
In cricket, when a batsman hits the ball that is bowled at him, the direction in which the ball is moving changes. In football, the players can change the direction of the moving ball by kicking it in a different direction. In these examples, force changes the direction of a moving object.
Force can change the shape or size of an object
While making chapattis, we change the shape of the dough by applying force with our hands. The shape of a rubber band changes when it is pulled. You can also break things by applying a force. Materials that break easily when we apply a force are termed brittle. For example, objects made of glass and clay break easily when we apply force on them.
A force acting on an object causes change in position of an object, change in the speed of an object, it changes the direction of an moving object and it also causes change in the shape of an object.
