Solid Liquid and Gases MCQ Questions and Answers for Practice

1. A gas can be compressed because

1. the particles shrink
2. there are gaps between the particles
3. gases have always got air in them
4. the particles can be squeezed

2. A substance that is a liquid is

1. steam
2. water
3. crystal
4. ice

3. A substance with a fixed shape is called a

1. liquid
2. solid
3. foam
4. gas

4. Boiling happens when

1. a solid turns to a gas
2. a solid turns to a liquid
3. a gas turns to a solid
4. a liquid turns to a gas

5. Choose the statement that is incorrect.

1. Solids, liquids and gases are called the three states of matter.
2. Some liquids do not contain particles.
3. All substances are made of particles.
4. Matter contains particles.

6. Diffusion provides evidence that

1. particles have different sizes
2. particles move by themselves
3. all matter is made from particles
4. particles collide

7. During heat conduction in solids

1. the particles lose energy
2. the particles pass on energy by colliding
3. the energy in the particles expands
4. the particles get cooler

8. In a gas the particles

1. are close together
2. move slowly
3. are far apart
4. change size

9. In a solid substance the particles

1. do not move
2. touch
3. are far apart
4. change size

10. On a cold, damp morning there is mist in a garden. Mist is a mixture of

1. a solid and a gas
2. two different liquids
3. a liquid and a gas
4. a liquid and a solid

11. Particles have random motion. This means

1. the path of the particles cannot be predicted
2. the path of the particles are curved
3. the particles always travel in straight lines
4. the particles stand still

12. When an iron bar is heated it gets longer. This is because the particles in the bar

1. get closer together
2. move further apart
3. change shape
4. get bigger