ICSE Class 6 Physics - Matter - Test 3 (Advanced)
1. When perfume is sprayed in one corner of a room, its smell reaches the other corner because of:
A. Freezing
B. Diffusion
C. Melting
2. Diffusion happens fastest in:
A. Solids
B. Liquids only
C. Gases
3. Which state of matter is most easily compressed?
A. Gas
B. Solid
C. Liquid
4. Particles are most closely packed in:
A. Gas
B. Solid
C. Vapour
5. Which statement about gas particles is correct?
A. They are fixed in one place
B. They are tightly packed like solids
C. They are far apart and move freely
6. Most substances expand on heating because their particles:
A. Move faster and take more space
B. Completely disappear
C. Change into shadows
7. Small gaps are left between railway tracks mainly because metals:
A. Become invisible in heat
B. Expand on heating
C. Dissolve in air
8. A balloon kept in warm sunlight becomes bigger because the air inside:
A. Freezes
B. Turns into solid
C. Expands
9. When most substances are cooled, they usually:
A. Contract
B. Burn immediately
C. Become sound
10. The liquid in a thermometer rises when heated because it:
A. Changes into stone
B. Expands
C. Loses all matter
11. Wax becoming liquid near a flame is an example of:
A. Condensation
B. Freezing
C. Melting
12. The change of liquid water into steam is called:
A. Vaporisation
B. Freezing
C. Solidification
13. Water droplets forming on a cold lid above hot water show:
A. Melting
B. Condensation
C. Expansion of solids
14. Liquid juice becoming ice candy in a freezer is an example of:
A. Diffusion
B. Evaporation
C. Freezing
15. Camphor slowly disappearing without leaving liquid is an example of:
A. Sublimation
B. Melting only
C. Filtration
16. Why does water take the shape of any container?
A. It has no volume
B. It has no fixed shape
C. It is not matter
17. A gas fills the whole container because it has:
A. Fixed shape only
B. Fixed volume only
C. No fixed shape and no fixed volume
18. Which statement best describes particles in a solid?
A. They vibrate about fixed positions
B. They move freely like gas particles
C. They do not exist
19. Smoke is considered matter because it:
A. Is only sound
B. Has tiny particles with mass
C. Is only a shadow
20. Which of the following is not matter?
A. Smoke
B. Steam
C. Light