Question

EXERCISE
A. Tick () the correct options:


1. Sound cannot travel through
(a) solids
(C) vacuum


(b) liquids
d) gases

2. Which of the following has low pitch voice?
(a) a man
(b) a woman
(c) a baby boy
(d) a baby girl
3. The decibel (dB) is a unit that measures
(a) loudness
(b) pitch
(c) frequency
(d) quality

4. Woman voice is high-pitched than man because her vocal cords are
(a) shorter
(b) longer
(c) moulded
(d) stretched

5. In Fig. (a), sound is produced by two rubber bands because of its
(a) length
(b) nature
(c) vibration
(d)colour

6. In Fig. (a), if the rubber bands are very much stretched, sound is produced
(a) low-pitched
(b) low amplitude
(c) high-pitched
(d) high amplitude ​

Answer 1

Answer:

1 d

2 d

3 c

4 a

5 c

6 c

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