Question

if a key of a piano is first struck gently and then much harder, how will the loudness and pitch of the sound change? give reason​

Answer 1

≡QUESTION≡

If a key of a piano is first struck gently and then much harder, how will the loudness and pitch of the sound change? Give reason​

                                                                                           

║⊕ANSWER⊕║

• When the key of a mechanical piano struck harder, the vibrations caused are more resulting in larger amplitude of the wave that propagates from the key.

Amplitude - Important parameter of waves and is the maximum displacement of points on a wave.

• Larger vibrations make a louder sound.
• Loudness depends on the amplitude not the frequency.

• Pitch of the sound depends on the frequency of the wave which is not change when the key is struck harder.

• The pitch depends on the frequency of the sound.

By hitting it hard it will make its amplitude higher.

But the frequency and pitch will be same.

                                                                                               

Answer 2

if a piano is first stuck gently and then much harder the loudness of sound will increase but pitch of the sound will be same  .

hope it will help .