Scribd
Upload
16 views6 pages

Unit One Question

The document contains multiple choice questions related to the properties and states of matter, including solids, liquids, and gases. It covers concepts such as the Tyndall effect, latent heat, sublimation, and processes like evaporation and condensation. The questions aim to assess understanding of physical changes and characteristics of different states of matter.

Uploaded by

Amente Rare
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
16 views6 pages

Unit One Question

The document contains multiple choice questions related to the properties and states of matter, including solids, liquids, and gases. It covers concepts such as the Tyndall effect, latent heat, sublimation, and processes like evaporation and condensation. The questions aim to assess understanding of physical changes and characteristics of different states of matter.

Uploaded by

Amente Rare
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 6

Matter in Our Surroundings

Multiple Choice Questions:

1. Which of the following states of matter has a


definite volume but no definite shape?
a) Solid
b) Liquid
c) Gas
d) Both b and c

2. The particles of a gas are


a) tightly packed
b) loosely packed
c) fixed in position
d) arranged in a regular pattern

3. Which property is NOT characteristic of a solid?


a) Fixed shape
b) Fixed volume
c) High compressibility
d) Particles are closely packed

4.Tyndall effect is seen in


a) solids
b) gases
c) colloids
d) solutions
5.The process of conversion of a solid
directly into a gas is called
a) melting
b) evaporation
c) sublimation
d) condensation

6. Which of the following is an


example of sublimation?
a) Melting ice to water
b) Dry ice turning into carbon dioxide gas
c) Water boiling to steam
d) Rusting of iron

7. Latent heat is
a) the heat required for combustion
b) the heat absorbed or released during a
change of state at constant temperature
c) heat generated by chemical reactions
d) heat transferred by conduction only
8. Which of the following is a
physical change?
a) Burning of paper
b) Melting of ice
c) Rusting of iron
d) Cooking of food

9. The process of converting a gas


into a liquid is called
a) evaporation
b) condensation
c) sublimation
d) melting
10. The temperature at which a solid
melts is called
a) boiling point
b) sublimation point
c) melting point
d) freezing point

11.Which of the following states of


matter has the highest density?
a) Gas
b) Liquid
c) Solid
d) Vapor
12. What is the main reason for the
expansion of gases?
a) Increase in temperature
b) Decrease in pressure
c) Increase in pressure
d) Increase in particle size
13. Which of the following statements is
true?
a) Solids have a definite shape and volume.
b) Liquids have a definite shape but no definite
volume.
c) Gases have a definite volume but no definite
shape.
d) Both a and c are correct.
14. In which state of matter do particles move
freely and randomly?
a) Solid
b) Liquid
c) Gas
d) Both b and c

16. What is the main cause of diffusion?


a) Random motion of particles
b) Movement of hands
c) Heat transfer
d) Chemical reactions

17. The process of converting a liquid into a


gas at the surface is called
a) boiling
b) condensation
c) evaporation
d) sublimation
19. Which property of gases increases
when temperature is increased at
constant pressure?
a) Volume
b) Density
c) Mass
d) None of the above
20. The process where a liquid turns into
a solid directly, skipping the liquid state,
is called
a) melting
b) crystallization
c) sublimation
d) freezing

You might also like