Question

Which one of the following is NOT an effect of force?

• A. Change of speed of an object.
• B. Change of motion of an object.
• C. Change of shape/size of the object.
• D. Change of the mass of the object.

Answer 1

The correct option is D

Change of the mass of the object.

The explanation for the correct option:

1. The mass of an object is the quantity of matter (solid, liquid, and gas) contained by it.
2. The mass of an object does not change with the application of force.
3. It will always remain constant.

The explanation for the incorrect option(s):

A force is a push or a pull acting on an object.

A: Change of speed of an object

A force can change an object's speed. It can increase or decrease the speed of the object.

B: Change of motion of an object

Force can change the motion of an object. It may stop or speeds up an object.

C: Change of shape/size of the object

Force can change the size or shape of an object. For example, in the case of a spring.

Hence, option D is correct.