Sound Properties

Q.

Name the part which vibrates to produce sound in the following:

(1) Drums

(2) Sitar

(3) Flute

Q.

In a harmonium, Reed vibrate to produce sound.

1. True
2. False

Q.

Does sound wave requires a medium for its propagation?

1. Yes

2. No

3. None of these

4. Can't be said

Q. Birds like woodcock and robin can identify the sounds of earthworms because _______.

1. they can see minute movements
2. they can hear high intensity sounds
3. they can hear low intensity sounds
4. they can hear loud sounds

Q.

Sound wave is a mechanical wave, which means, unlike light, it needs a medium to travel.

1. True

2. False

Q.

Suppose a stick is struck against a frying pan in a vacuum. Will the frying pan vibrate? Will we be able to hear the sound? Explain.

Q. A taut rubber band is capable of production of sound while a slack rubber band is not.

1. True
2. False

Q. How does sound travel?

1. In the form of a wave.
2. Particle move from the source to the listener.
3. Depends on the medium.
4. Depends on the source.

Q.

When we say sound travels in a medium, we mean

1. the particles of the medium travel

2. the source travels

3. the disturbance travels

4. the medium travels

Q.

Sound wave is a mechanical wave, which means, unlike light, it needs a medium for propagation.

1. True

2. False

Q.

Sound can not travel in_______.

Q.

Sound waves need a medium for its propagation.

1. No

2. Yes

Q.

When a drum is beaten, a sound is heard due to:

1. Heating of the membrane

2. Vibration of the membrane

3. Both heating and vibration of the membrane

4. Freezing of the membrane

Q. Sound is produced in a flute due to the vibration of air column.

1. True

2. False

Q. The following sentence is an example of ________.

1. Repetition
2. Onomatopoeia
3. Irony
4. Exclamation