Question

Answer the following question?[plz answer all the question]
1.)State two effects of force?
2.)Give two example of contact force?
3.) Give two example of non-contact forces?

Answer 1

$Answer:-$

1.)State two effects of force?

→(i) It changes the shape of the object.

(ii)It increase or decrase the speed of an object.

2.)Give two example of contact force?

→(i) Muscular force  

(ii) Frictional force

3.) Give two example of non-contact forces?

→(i) Magnetic force

(ii) Gravitational force

Answer 2

1)A force acting on an object causes the object to change its shape or size, to start moving, to stop moving, to accelerate or decelerate. When there's the interaction between two objects they exert a force on each other, these exerted forces are equal in size but opposite in direction.

2)Pushing a car up a hill or kicking a ball across a room are some of the everyday examples where contact forces are at work. In the first case the force is continuously applied by the person on the car, while in the second case the force is delivered in a short impulse.

3)An apple falling down from a tree is one of the best examples of non-contact force. Iron pins attracted in the presence of a magnet bar without any physical contact. Falling of raindrops on earth is also an example of non-contact force. The charging of the hair and attraction of paper bits towards it.

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