Question

Force
1) What is force?
2) Write 3 effects of force.
3) Write 2 advantages of force
4) What is contact force?
5) What is non contact force?
6) What is friction?

Answer 1

Answer:

1. push or pull of an object is called force.

2. Three affects of force are:-

i) Can change the state of an object(rest to motion/ motion to rest).

ii) May change the speed of an object.

iii) May change the direction of motion of an object.

3) 2 advantages of force are:-

i) prevent us from accidents.

ii) we can push any heavy thing.

4) Contact forces are forces that act between two objects that are physically touching each other.

5) Non contact Force is a force applied to an object by another body that is not in direct contact with it.

6) Friction is a force between two surfaces that are sliding or trying to slide across each other.