State two effects of a force when applied on a body.

When a force is applied to a body, it can have the following two main effects:
1. Change in Motion (Acceleration):
A force can cause a change in the motion of a body, which means it can accelerate the body. According to Newton's second law of motion, the force acting on a body is equal to the mass of the body multiplied by its acceleration (F=maF = ma). This effect results in the body either speeding up, slowing down, or changing direction, depending on the direction of the force relative to the motion of the body.
2. Deformation:
A force can cause a deformation in a body, altering its shape or size. If the force is applied to a body that is elastic, the body may stretch, compress, or bend. This effect is particularly noticeable in materials like rubber, metal, or wood. The extent of deformation depends on the magnitude of the force and the properties of the material, such as its elasticity or plasticity.
In summary, the two effects of force are:
1. Changing the motion (causing acceleration).
2. Causing deformation (change in shape or size).