Sound Waves

Sound is produced by -----

• Heat energy

• Low temperatures

• Vibrations

• Friction

The distance from the beginning of one compression to the beginning of the next compression is called a -----

• Rarefaction

• Frequency

• Wavelength

• Compression

The number of wavelengths that pass a fixed point each second is known as ----

• Hertz

• Amplitude

• Frequency

What is transported by a wave?

• air

• energy

• matter

• particles

The diagram shows a cartoon of a sound wave produced while a student is speaking.

What happens to the sound wave when the student speaks louder?

• The amplitude increases

• the wavelength will double

• the speed will increase

• the amplitude will decrease

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

How high or low a sound is; depends on the frequency (greater frequency= higher pitch)

• pitch
• frequency
• sound
• medium

The term for how high or low a sound is:

• pitch
• volume
• sound
• medium

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest

Sound is produced when something ______________

• Vibrates
• Moves through empty space