Sound [NSO Level 1- Science Olympiad (SOF) Class 8]: Questions 1 - 6 of 73

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Question 1

Sound

Question

MCQ▾

Women and children have sweet voice while men have a rough voice. The reason is

Choices

Choice (4)Response

a.

The vocal cord of men, women and children are equal in size

b.

The vocal cord of a woman or a child is larger than a man

c.

The vocal cord of a man is larger than that of a woman and a child

d.

Question does not provide sufficient data or is vague

Question 2

Sound

Question

MCQ▾

The size of vocal cord of a common man is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 3

Sound

Question

MCQ▾

An unpleasant sound which disturbs us is called a

Choices

Choice (4)Response

a.

Music

b.

Alarm

c.

Noise

d.

Question does not provide sufficient data or is vague

Question 4

Sound

Question

MCQ▾

Children under the age of can hear sounds with frequency up to

Choices

Choice (4)Response

a.

25 KHz

b.

20000 Hz

c.

20Hz

d.

20 KHz

Question 5

Sound

Question

MCQ▾

Sound is a form of

Choices

Choice (4)Response

a.

Work

b.

Energy

c.

Force

d.

Question does not provide sufficient data or is vague

Question 6

Sound

Question

MCQ▾

In sonography or ultra sound scanning, the sound used is with frequency

Choices

Choice (4)Response

a.

Above 20000Hz

b.

Below 20 Hz

c.

20Hz to 20000Hz

d.

Question does not provide sufficient data or is vague

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