Question

Particles of matter are
(A) Stationary
(B) Vibrating
(C) Continuously moving
(D) Rotating about an axis

Answer 1

Hint: In order to state the motion of matter, we must be knowing what are the different types of matter present and their characteristic motion. Matter is a tiny substance that can exist in three forms namely solid, liquid and gaseous.

Complete step by step answer:
Matter is a tiny substance that has mass and can occupy space. Every substance present in our surroundings is composed of matter. Matter is composed of very tiny particles that cannot be visible to our naked eye.
Matter can exist in three different states. They are
- Solid
- Liquid
- Gas.
The matter in the solid state will have definite shape and volume. The particles cannot move freely. They are in a fixed position. The particles are in a tightly packed structure, therefore, there is a very strong attraction between them. The particles in the solid state are in a continuous motion, i.e. they vibrate continuously.
The matter in the liquid state will have a definite volume but not definite shape. The particles can move less freely. The intermolecular force of attraction is less compared to solid.
The matter in the gaseous state will not have any definite shape or volume. The particles can move very freely. The particles do not have tightly packed structures. The intermolecular force of attraction is the least compared to other states.
Let us now consider an example to prove that the particles are in a continuous motion. When a person at one end of the room sprayed perfume. The other person can feel the smell of the perfume within a fraction of time. This shows that the particles are in a continuous motion.

Therefore, the correct answer is option (C) Continuously moving.

Note:
There are other states of matter other than solid, liquid and gases, they are
- Plasma
- Quark-Gluon plasma
- Ionized
- Bose-Einstein condensate
- Fermionic condensate