Question

Q4. Write answers to the following questions:-
1. How is sound produced?
2. What does the intensity of sound depend upon?
3. Explain how the frequency of oscillation is related to the length of a
pendulum and the amplitude of its oscillation

Answer 1

$\boxed{\rm{\orange{\bigstar \; Λnswεrs \; \bigstar \longrightarrow}}}$

1. How is sound produced?

⇒ Vibrations are produced in an object when it is struck. Vibrating object is a  source of sound. The rhythmic vibrations of an object produces sound.

2. What does the intensity of sound depend upon?

⇒ The intensity of sound depends upon:

• Amplitude of vibrations: The intensity of sound is proportional to the  square of the amplitude of vibration.
• Frequency of vibrations: If frequency is higher then intensity of  sound is also higher.
• Distance from the source of sound: If the distance between the listener and the source of sound is less, than intensity of sound can  be felt greater.

3. Explain how the frequency of oscillation is related to the length of a  pendulum and the amplitude of its oscillation.

⇒ As the length of a pendulum increases, the frequency of oscillations  decreases. That means, as the length of a pendulum increases, the  number of oscillations in one second decreases.

   The frequency of oscillations is not affected much by the amplitude of  oscillations. That means, even if the amplitude is increased, the  frequency does not change much, it remains nearly the same.

⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━⠀⠀⠀⠀⠀

       

Hope my answers are correct and will help:)♡

Answer 2

$\huge \mid \:\cal \colorbox{lime}{ANSWER}\mid$

1. How is sound produced?

☞ Vibrations are produced in an object when it is struck. Vibrating object is a source of sound. The rhythmic vibrations of an object produces sound.

2. What does the intensity of sound depend upon?

☞The intensity of sound depends upon:

Amplitude of vibrations: The intensity of sound is proportional to the square of the amplitude of vibration.

Frequency of vibrations: If frequency is higher then intensity of sound is also higher.

Distance from the source of sound: If the distance between the listener and the source of sound is less, than intensity of sound can be felt greater.

3. Explain how the frequency of oscillation is related to the length of a pendulum and the amplitude of its oscillation.

☞ As the length of a pendulum increases, the frequency of oscillations decreases. That means, as the length of a pendulum increases, the number of oscillations in one second decreases.

The frequency of oscillations is not affected much by the amplitude of oscillations. That means, even if the amplitude is increased, the frequency does not change much, it remains nearly the same.