NSO Level 1- Science Olympiad (SOF) Class 9: Questions 936 - 941 of 1128

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Question 936

Question

MCQ▾

Before playing the orchestra in a musical concert, a sitarist tries to adjust the tension and pluck the string suitably. By doing so, he is adjusting

Choices

Choice (4)Response

a.

Intensity of sound

b.

Frequency of the sitar string with the frequency of other musical instrument

c.

Amplitude of sound

d.

Loudness of sound

Question 937

Question

MCQ▾

A sound of single frequency is called as

Choices

Choice (4)Response

a.

Pitch

b.

Noise

c.

Note

d.

Tone

Question 938

Question

MCQ▾

The persistence of sound in an auditorium is the result of repeated reflections of sound and hence called as

Choices

Choice (4)Response

a.

Oscillation

b.

Reverberation

c.

Loudness

d.

Echo

Passage

DIRECTION: A boy throws a ball on a wall with different velocities and the ball bounces back as shown in the figure. Observe the pictures carefully and answer questions below.

The Ball Bounces Back as Shown in the Figure

Question 939 (1 of 4 Based on Passage)

Question

MCQ▾

If the same ball is used in both the cases, in which case the momentum would be greater?

Choices

Choice (4)Response

a.

Case II

b.

Case I

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question 940 (2 of 4 Based on Passage)

Question

MCQ▾

In which case the velocity change would be greater?

Choices

Choice (4)Response

a.

Case II

b.

Case I

c.

All of the above

d.

Question does not provide sufficient data or is vague

Question 941 (3 of 4 Based on Passage)

Question

MCQ▾

In which case the acceleration would be greater?

Choices

Choice (4)Response

a.

Case I

b.

Case II

c.

Question does not provide sufficient data or is vague

d.

None of the above

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