Sound

Page
4

The phenomenon of beats is the result of sound

destruction.

interference.

resonance.

amplification.

Slide 37

When a 134-Hz tuning fork and a 144-Hz tuning fork are struck, the beat frequency is

2 Hz.

6 Hz.

8 Hz.

more than 8 Hz.

Slide 38

When a 134-Hz tuning fork and a 144-Hz tuning fork are struck, the beat frequency is

2 Hz.

6 Hz.

8 Hz.

more than 8 Hz.

Explanation: The beat frequency is the difference between the two, 10 Hz (which is more than 8 Hz).

Slide 39

When your radio set is tuned to an incoming radio signal, what occurs?

Forced vibration

Resonance

Refraction

Diffraction

Slide 40

When your radio set is tuned to an incoming radio signal, what occurs?

Forced vibration

Resonance

Refraction

Diffraction