Question Paper
Class / Subject: Class 9 (CBSE) · Science
Chapter: Chapter 11 — Chapter 11: Sound
Time Allowed: 15 minutes
Max Marks: 6
1. Sound cannot travel through a: [1]
(A) vacuum
(B) solid
(C) liquid
(D) gas
2. Sound waves are classified as: [1]
(A) longitudinal waves
(B) transverse waves
(C) electromagnetic waves
(D) static waves
3. Sound travels fastest through: [1]
(A) solids
(B) liquids
(C) gases
(D) a vacuum
4. The pitch of a sound depends on its: [1]
(A) frequency
(B) amplitude
(C) quality
(D) speed only
5. The loudness of a sound depends on its: [1]
(A) amplitude
(B) frequency only
(C) quality
(D) wavelength only
6. The human ear can typically hear frequencies between: [1]
(A) 20 Hz and 20,000 Hz
(B) 0 Hz and 10 Hz
(C) 100,000 Hz and 200,000 Hz
(D) 1 Hz and 5 Hz