Force, Friction and Sound Test

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Force, Friction and Sound Test - 4

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Weekly Quiz Competition

Question 1
1 / -0

When a pencil is thrown upwards, then its speed goes on decreasing, because of:

A
Electrostatic force

B
Frictional force

C
Muscular force

D
Gravitational force
Question 2
1 / -0

Drag force is applied by which of the following and in which direction?

A
Solids, in the direction or opposite to the direction of motion.

B
Liquids, in the direction of motion of the object only.

C
Gases, in the direction of motion of the object only.

D
Fluids, in the direction opposite to the direction of motion of the object.
Question 3
1 / -0

If the amplitude of a vibration is doubled then the loudness of the sounds will become:

A
Half

B
One-fourth

C
Doubled

D
Four times
Question 4
1 / -0

Frequency of vibration is directly proportional to___ of sound.

A
Amplitude

B
Loudness

C
Pitch

D
Time period
Question 5
1 / -0

If we strike a wooden table with a steel spoon lightly we hear a feeble sound but if we hit the wooden table hard with steel spoon, a loud sound is heard because:

A
Amplitude of vibration is high in case of loud sound.

B
Amplitude of vibration is low in case of feeble sound.

C
Both [a] and [b]

D
Either [a] or [b]
Question 6
1 / -0

Which one of the following statements is correct?

(i) Loudness of sound is directly proportional to the square of amplitude vibrations.
(ii) Sound can travel through vacuum.
(iii) Speed of sound is maximum in solids.
(iv) The outer part of ear is called ear canal.

A
(i) and (ii)

B
(ii) and (iii)

C
(i) and (iii)

D
(i) and (iv)
Question 7
1 / -0

Which one of the following is not a bone of ear?

A
Anvil

B
Hammer

C
Humerus

D
Stirrup
Question 8
1 / -0

Unit of measuring loudness is:

A
Hertz

B
Metre/Second

C
Metre

D
Decibel
Question 9
1 / -0

In order to increase the loudness of a sound we have to:

A
Decrease its frequency of vibration.

B
Increase its frequency of vibration.

C
Increase its amplitude of vibration.

D
Decrease its amplitude of vibration.

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Re-Attempt Weekly Quiz Competition

Force, Friction and Sound Test - 4

Result

Force, Friction and Sound Test - 4

Score

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Rank

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SHARING IS CARING

Question 1

Electrostatic force

Frictional force

Muscular force

Gravitational force

Question 2

Solids, in the direction or opposite to the direction of motion.

Liquids, in the direction of motion of the object only.

Gases, in the direction of motion of the object only.

Fluids, in the direction opposite to the direction of motion of the object.

Question 3

Half

One-fourth

Doubled

Four times

Question 4

Amplitude

Loudness

Pitch

Time period

Question 5

Amplitude of vibration is high in case of loud sound.

Amplitude of vibration is low in case of feeble sound.

Both [a] and [b]

Either [a] or [b]

Question 6

(i) and (ii)

(ii) and (iii)

(i) and (iii)

(i) and (iv)

Question 7

Anvil

Hammer

Humerus

Stirrup

Question 8

Hertz

Metre/Second

Metre

Decibel

Question 9

Decrease its frequency of vibration.

Increase its frequency of vibration.

Increase its amplitude of vibration.

Decrease its amplitude of vibration.

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