Lesson 5

Question 1

A harmonic frequency is

Answer 1

The lowest frequency at which an object, like a pendulum or a mass on a spring will vibrate when it’s allowed to vibrate freely

Question 2

If you were to push a person on a swing with a timing that matches the natural frequency you would observe

Answer 2

Resonance

Question 3

Resonance is

Answer 3

The tendency of a system to oscillate at larger amplitudes at some frequencies then others These are known as resonant frequencies. At these frequencies, even small periodic driving forces can produce large amplitude oscillations

Question 4

The lowest frequency that produces a standing wave is called the

Answer 4

Fundamental frequency

Question 5

Additional standing wave patterns will occur at frequencies that are whole number multiples of the fundamental frequency. These additional resonant frequencies are called

Answer 5

Overtones

Question 6

The first overtone occurs at a frequency that is exactly double the fundamental frequency. This is called the

Answer 6

Second harmonic