Question

Jason is excited because he has always loved music and his local tech school has introduced a program where he can become certified as a piano tuner. He thought that they would immediately be working on the actual pianos, but the first lesson was on the relationship between harmonics and resonance frequency so they would clearly understand how sound is produced in pianos. What are two true facts that Jason would have learned during that lesson?

(2 points)
Responses

The fundamental is the highest tone in the harmonic series and has multiple nodes and antinodes
The fundamental is the highest tone in the harmonic series and has multiple nodes and antinodes

The strings in a piano are all the same diameter and length but they have different harmonics that produce the different sound.
The strings in a piano are all the same diameter and length but they have different harmonics that produce the different sound.

Even though the strings in a piano are different lengths, they all have the same resonance frequency.
Even though the strings in a piano are different lengths, they all have the same resonance frequency.

A vibrating piano string can cause other strings in the piano to vibrate at the same resonant frequency even though they have not been hit by the hammer.
A vibrating piano string can cause other strings in the piano to vibrate at the same resonant frequency even though they have not been hit by the hammer.

Resonance is when an object such as a piano string, vibrates at its natural frequency and produces sound.
Resonance is when an object such as a piano string, vibrates at its natural frequency and produces sound.

Answer 1

- A vibrating piano string can cause other strings in the piano to vibrate at the same resonant frequency even though they have not been hit by the hammer. (sympathetic resonance)
- Resonance is when an object such as a piano string vibrates at its natural frequency and produces sound.