Question Paper
Class / Subject: Class 8 (ICSE) · Science
Chapter: Chapter 1 — Chapter 1: Matter (Physics)
Time Allowed: 32 minutes
Max Marks: 16
1. What does the kinetic theory explain? [1]
(A) Particle movement in matter
(B) Only chemical reactions
(C) Only colours
(D) Nothing useful
2. What causes more particle movement? [1]
(A) More energy
(B) Less energy
(C) No energy
(D) Colour changes
3. What is melting point? [1]
(A) Temperature where solid becomes liquid
(B) Temperature where liquid becomes gas
(C) Temperature where gas becomes solid
(D) A fixed temperature for all substances
4. What is boiling point? [1]
(A) Temperature where liquid becomes gas
(B) Temperature where solid becomes liquid
(C) Temperature where gas becomes solid
(D) A fixed temperature for all substances
5. What is sublimation? [1]
(A) Solid changing directly to gas
(B) Liquid changing to solid
(C) Gas changing to liquid
(D) No change at all
6. What is an example of sublimation? [1]
(A) Dry ice (solid CO2)
(B) Melting ice
(C) Boiling water
(D) Freezing water
7. Why study matter's states and changes? [1]
(A) To explain everyday phenomena like cooking and weather
(B) No reason
(C) It's not useful
(D) Only for tests
8. Does energy relate to particle movement? [1]
(A) Yes
(B) No, they are unrelated
(C) Only sometimes
(D) Energy has no effect on particles
9. What does the kinetic theory explain? [1]
(A) Particle movement in matter
(B) Only chemical reactions
(C) Only colours
(D) Nothing useful
10. What causes more particle movement? [1]
(A) More energy
(B) Less energy
(C) No energy
(D) Colour changes
11. What is melting point? [1]
(A) Temperature where solid becomes liquid
(B) Temperature where liquid becomes gas
(C) Temperature where gas becomes solid
(D) A fixed temperature for all substances
12. What is boiling point? [1]
(A) Temperature where liquid becomes gas
(B) Temperature where solid becomes liquid
(C) Temperature where gas becomes solid
(D) A fixed temperature for all substances
13. What is sublimation? [1]
(A) Solid changing directly to gas
(B) Liquid changing to solid
(C) Gas changing to liquid
(D) No change at all
14. What is an example of sublimation? [1]
(A) Dry ice (solid CO2)
(B) Melting ice
(C) Boiling water
(D) Freezing water
15. Why study matter's states and changes? [1]
(A) To explain everyday phenomena like cooking and weather
(B) No reason
(C) It's not useful
(D) Only for tests
16. Does energy relate to particle movement? [1]
(A) Yes
(B) No, they are unrelated
(C) Only sometimes
(D) Energy has no effect on particles