Topic 5: Can Matter Change Its State?

Please fill your details to start the quiz

🪨 Topic 5: Can Matter Change Its State? Quiz

1. Matter can change its state by:

A. Changing temperature or pressure B. Changing shape C. Adding water D. Stirring

2. The process of changing a solid into liquid is called:

A. Condensation B. Melting C. Freezing D. Sublimation

3. Which process involves conversion of liquid to solid?

A. Boiling B. Melting C. Freezing D. Evaporation

4. The process of liquid changing into gas on heating is called:

A. Freezing B. Melting C. Condensation D. Boiling

5. What is the process of gas changing into liquid called?

A. Condensation B. Evaporation C. Sublimation D. Fusion

6. Which process involves direct change from solid to gas?

A. Melting B. Boiling C. Sublimation D. Condensation

7. Which of the following shows sublimation?

A. Water B. Dry ice C. Milk D. Salt

8. What is the name of heat energy required to change the state of a substance?

A. Kinetic energy B. Heat of reaction C. Specific heat D. Latent heat

9. The latent heat required to change solid into liquid is called:

A. Latent heat of fusion B. Latent heat of vaporization C. Specific heat D. Heat capacity

10. What is the boiling point of water at normal pressure?

A. 0°C B. 100°C C. 50°C D. 37°C

11. At what temperature does ice melt under normal atmospheric pressure?

A. 10°C B. -10°C C. 0°C D. 32°C

12. Which factor affects the state change of matter besides temperature?

A. Pressure B. Surface area C. Volume D. Density

13. What is the correct sequence of states when ice is heated?

A. Liquid → Solid → Gas B. Solid → Gas → Liquid C. Gas → Liquid → Solid D. Solid → Liquid → Gas

14. Which process skips the liquid state during change?

A. Melting B. Sublimation C. Boiling D. Evaporation

15. How is evaporation different from boiling?

A. Evaporation occurs only at 100°C B. Boiling occurs at surface only C. Evaporation occurs at all temperatures D. Boiling is slower than evaporation

16. What happens when high pressure is applied to a gas?

A. It turns into a liquid B. It becomes solid C. Temperature decreases D. Volume increases

17. Which of the following substances shows sublimation?

A. Sugar B. Camphor C. Salt D. Water

18. Why does temperature not rise during melting?

A. Heat escapes as sound B. Ice absorbs sunlight C. Energy is used for boiling D. Heat is used to overcome attraction between particles

19. What happens to particles during condensation?

A. They move apart B. They gain energy C. They lose energy D. They stop vibrating

20. Changing of state is which type of change?

A. Physical B. Chemical C. Irreversible D. Nuclear

21. Which has more energy?

A. Ice B. Cold water C. Steam D. Boiling water

22. Which energy is absorbed during boiling?

A. Latent heat of vaporization B. Latent heat of fusion C. Potential energy D. Chemical energy

23. Why does a substance change state when heated?

A. Mass increases B. It becomes heavier C. Volume decreases D. Particles gain energy and overcome attraction

24. During melting, temperature:

A. Rises constantly B. Remains constant C. Falls gradually D. First falls then rises

25. What happens to solid particles when heated before melting point?

A. They break apart B. They move far apart C. They vibrate faster D. They become still

26. What is the reverse process of sublimation called?

A. Deposition B. Condensation C. Freezing D. Fusion

27. Water changes into vapour by:

A. Melting B. Freezing C. Condensation D. Boiling or evaporation

28. Which substance changes directly from solid to gas?

A. Iron B. Naphthalene C. Wax D. Water

29. Why does steam cause more severe burns than boiling water?

A. It is lighter B. It moves faster C. It contains more energy D. It is humid

30. During change of state:

A. Mass changes B. New substance forms C. Particles are destroyed D. Physical state changes, not chemical identity

🏆 Top 10 Leaderboard

Loading leaderboard...

Share on Facebook Share on Twitter

About Sagar Kumar Art - SKA

This is a short description in the author block about the author. You edit it by entering text in the "Biographical Info" field in the user admin panel.