Question

what are the four effects of force?

Answer 1

A ‘Force’ is a vector quantity that can be described as a push or pull on an object resulting from the object’s interaction with another object.
A force can produce the following effects on an Object:

1) A force can move a stationary object: An Object remains at rest would begin to move when a force is applied to it. E.g.: A Football remains stationary on the ground until it is been kicked by a player.

2) A force can stop a moving object: An Object which is in motion either constant/varying could be stopped when a force is applied to it. E.g.: Application of brakes on a car in motion.

3) A force can change the speed of a moving object: An Object which is in motion either constant/varying, if a force is applied to the object in the same direction of the motion or opposite would change the speed of the object. E.g.: In bicycle pedaling faster would make the bicycle go faster and vice versa.

4) A force can change the direction of a moving object: An Objects’ direction either stationary or in motion is changed when force is applied. E.g.: Application of force on car steering makes the change in direction of the car's motion.

5) A force can change the shape and size of an object: When a force is applied on an object, based on its structural strength and amount of force applied, its shape or size could be changed/deformed. E.g.: Application of force on a clay or hitting aluminum sheet with a hammer makes the object's shape transformation.

6) A force (Gravity) can bend the shape of space-time: Look into the Theory of General Relativity.

Answer 2

force can move stationary object

force can change the shape of object

force can stop an object

force can change the speed of object

force can change size of object