Loudness

Q. How the loudness of sound is related with energy and amplitude

Q. DIFFERENCE between LOUDNESS and INTENCITY of the SOUND ??

Q.

How is the sound from a bell become louder?

Q.

What is the use of sound box in musical instruments?

Q. Which characteristic of sound changes when you lower the volume of your speaker?

1. Frequency increases
2. Amplitude increases
3. Amplitude decreases
4. Frequency decreases

Q. Compare loudness with intensity. Are they similar or different? [2 MARKS]

Q.

A bucket kept under a running tap is getting filled with water. A person sitting at a distance is able to get an idea when the bucket is about to be filled.

What causes the change in the sound?

Q. Which of the following statements is correct with respect to a movie threatre is equipped with a straight ceiling?

1. Sound will be received by the audience evenly.
2. Reverberations will be produced in the theatre.
3. Pitch of the sound will be uneven among the audience.

Q. Sound travels faster in solids than in liquids and gases.

1. False
2. True

Q.

Sound travels in air if

1. particles of medium travel from one place to another.

2. there is no moisture in the atmosphere

3. disturbance moves from one place to another

4. both particles as well as disturbance travel from one place to another

Q.

distinguish between loudness and intensity of sound.

Q. What is pitch?
[1 marks]

Q. If the amplitude of the sound reaching person A is 5 units and that reaching person B is 10 units. Which of them seems to have louder sound?

1. Person A
2. Person B
3. Both hear equally loud sound
4. Depends on the distance from the source

Q. Label the following parts of a human ear.

1. Ear drum
2. Cochlea
3. Pinna
4. Auditory nerve

Q. ntIf intensity of sound increases to 400% of its initial value, then percentage increase in its amplitude will be ?n

Q. Properties of medium that does not affect the speed of sound are:

Q. If the density of water increases, the speed of sound travelling through the water decreases.

1. True
2. False

Q. If the amplitude of the sound reaching person A is 5 units and that reaching person B is 10 units. Which of them seems to have louder sound?

1. Person A
2. Person B
3. Both hear equally loud sound
4. Depends on the distance from the source

Q. Closer the particles of the medium, quicker will be the sound.

1. False
2. True

Q. Two sounds having wavelengths $1.3m$ and $3.9m$ have the same speed in a medium. A person listens to these sounds. What difference would the listener feel?

1. First sound is heard with better quality.
2. First sound is louder.
3. First sound is heard with higher pitch.
4. Second sound is heard with higher pitch.

Q.

Two sounds having the same speed in a medium are having wavelengths 1.3 m and 3.9 m. A person listens to these sounds. What is the difference between the two sounds the person hears?

1. Second sound is louder

2. First sound is heard with higher pitch

3. Second sound is heard with better clarity

4. First sound is heard with better quality