Selina solutions

Selina solutions

Grade 7

Sound | Objective Questions

Question 1

Q1) True and False

(a) Sound can travel in vacuum.

(b) Sound is a form of energy.

(c) Sound can only be produced by vibrating bodies.

(d) Larger is the amplitude, feeble is the sound.

(e) The frequency is measured in hertz.

(f) Loudness depends on frequency.

(g) Waveforms of two different stringed instruments can be the same.

(h) Female voice is shriller than the male voice.

(i) A ticking clock sound is heard late when heard through a metal.

Solution:

(a) False

(b) True

(c) True

(d) False

(e) True

(f) False

(g) False

(h) True

(i) False

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subject-cta

Question 1

Q1) True and False

(a) Sound can travel in vacuum.

(b) Sound is a form of energy.

(c) Sound can only be produced by vibrating bodies.

(d) Larger is the amplitude, feeble is the sound.

(e) The frequency is measured in hertz.

(f) Loudness depends on frequency.

(g) Waveforms of two different stringed instruments can be the same.

(h) Female voice is shriller than the male voice.

(i) A ticking clock sound is heard late when heard through a metal.

Solution:

(a) False

(b) True

(c) True

(d) False

(e) True

(f) False

(g) False

(h) True

(i) False

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