Question

IV. Answer the following questions in detail:
1. Explain the various effects of force. State one example of each force.​

Answer 1

Answer:

force can move a stationary object. Ex-The force of engine makes a stationery car to move. 2) A force can stop a moving object. Ex-The force of brakes can stop a moving car. 3) A force can change the speed of a moving object.

Explanation:

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Answer 2

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Various effects of force :

1. A force can move a stationary object.

• Example : Pulling a suitcase on its wheels.

2. A force can stop a moving object.

Example : A ball rolling on rough surface comes to rest after some time due to force of friction.

3. A force can change the speed of a moving object.

• Example: We can increase the speed of a moving swing, we apply a force (push) in the direction of motion to increase its speed.

4. A force can change the direction of a moving object.

• Example: A moving bicycle changes its direction when a force is applied to steer its handle.

5. A force can change the shape and size of an object.

• Example: When we make a chapatti, a small ball of dough is changed to a flat, circular shape of a much bigger size by applying a force with the help of a rolling pin.