Question Paper
Class / Subject: Class 8 (ICSE) · Science
Chapter: Chapter 7 — Chapter 7: Sound
Time Allowed: 32 minutes
Max Marks: 16
1. What type of wave is sound? [1]
(A) Longitudinal
(B) Transverse
(C) Neither type
(D) Both types equally
2. Where does sound travel fastest? [1]
(A) Solids
(B) Liquids
(C) Gases
(D) Vacuum
3. Where does sound travel slowest? [1]
(A) Gases
(B) Solids
(C) Liquids
(D) It travels equally everywhere
4. Why does sound travel faster in solids? [1]
(A) Particles are closely packed
(B) Particles are far apart
(C) No particles exist in solids
(D) Sound cannot travel in solids
5. What is noise pollution? [1]
(A) Excessive or unwanted sound
(B) Pleasant music
(C) No sound at all
(D) Only very quiet sounds
6. What can noise pollution cause? [1]
(A) Harm to hearing and stress
(B) Only benefits
(C) No effects at all
(D) Improved hearing
7. What does understanding sound explain? [1]
(A) Instruments, hearing and echoes
(B) Nothing useful
(C) Only light phenomena
(D) Only heat phenomena
8. Why is sound level control important? [1]
(A) To prevent hearing damage and stress
(B) No reason
(C) It's not important
(D) Only for musicians
9. What type of wave is sound? [1]
(A) Longitudinal
(B) Transverse
(C) Neither type
(D) Both types equally
10. Where does sound travel fastest? [1]
(A) Solids
(B) Liquids
(C) Gases
(D) Vacuum
11. Where does sound travel slowest? [1]
(A) Gases
(B) Solids
(C) Liquids
(D) It travels equally everywhere
12. Why does sound travel faster in solids? [1]
(A) Particles are closely packed
(B) Particles are far apart
(C) No particles exist in solids
(D) Sound cannot travel in solids
13. What is noise pollution? [1]
(A) Excessive or unwanted sound
(B) Pleasant music
(C) No sound at all
(D) Only very quiet sounds
14. What can noise pollution cause? [1]
(A) Harm to hearing and stress
(B) Only benefits
(C) No effects at all
(D) Improved hearing
15. What does understanding sound explain? [1]
(A) Instruments, hearing and echoes
(B) Nothing useful
(C) Only light phenomena
(D) Only heat phenomena
16. Why is sound level control important? [1]
(A) To prevent hearing damage and stress
(B) No reason
(C) It's not important
(D) Only for musicians