Properties of Sound

Properties of Sound Waves

Reorder

Reorder the properties of sound to match the acronym:

• Wavelength

• Frequency

• Amplitude

• Phase

• Period

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Multiple Choice

What is a 'Phase'?

• A cycle of compression and rarefaction

• The size or extent of a cycle

• The positioning of a sound wave within a cycle

• The positioning of a sound wave

Multiple Choice

What is 'Frequency'?

• The speed of a repeating sound/wave

• The amount of seconds per cycle

• The amount of wavelengths per sound

• The amount of cycles per second

Match

Match the following:

• Low Frequency

• No Frequency

• High Frequency

Low Pitch

No Pitch

High Pitch

• Low Pitch

• No Pitch

• High Pitch

Fill in the Blank

If you double a frequency of a sound, the pitch will increase by an

Multiple Select

What is a 'Period'?

• The amount of seconds per cycle

• The time it takes a wavelength to travel between the listener and the source

• The amount of cycles per second

• Blood?

Multiple Choice

What is 'wavelength'?

• The wave creating the sound

• The distance between the source and the listener

• The amount of time it takes the sound to travel between the listener and the source

• The distance taken to complete a cycle

Multiple Choice

What is the calculation used to determine wavelength?

• speed divided by frequency = wavelength

• period divided by frequency = wavelength

• amplitude divided by frequency = wavelength

• physical distance divided by the speed of sound = wavelength

Multiple Select

What is 'Amplitude'?

• Measures gusto

• The volume of the sound from the original source

• The extent which the air pressure changes

• The pressure of the sound wave

Multiple Choice

Higher amplitude sounds will....

• Have less extreme compression and rarefaction

• Have more extreme compression and less extreme rarefaction

• Have more extreme rarefaction and less extreme compression

• Have more extreme compression and rarefaction

Fill in the Blank

Adding 6dB [SPL] to a sound wave will cause the sound pressure level to

Match

Which unit of measurement is used for each of the properties?

• Amplitude

• Period

• Wavelength

• Frequency

Decibels [dB SPL]

Seconds/ Milliseconds

Metres

Hertz [Hz]

• Decibels [dB SPL]

• Seconds/ Milliseconds

• Metres

• Hertz [Hz]

Fill in the Blank

Human hearing ranges between 20Hz and...

Multiple Choice

1 cycle per second is equal to...

• 0.01 Hz

• 1 Hz

• 1000 Hz

• 1 kHz

Fill in the Blank

The lower the frequency, the _______ the wavelength

Multiple Choice

True or False: Any sound in a given material will travel at the same speed.

• True

• False

Fill in the Blank

What is the standard speed of sound? [measured in metres per second]

Multiple Choice

1 Hz has a period of...

• 1 millisecond

• Half a second

• 1 second

• half a millisecond

Match

FINALLY: Match each of the properties of sound to their definitions

• Wavelength

• Frequency

• Amplitude

• Phase

• Period

The distance taken to complete a cycle

The amount of cycles per second

The extent of air pressure changes

Positioning of wavelength during cycle

The amount of seconds per cycle

• The distance taken to complete a cycle

• The amount of cycles per second

• The extent of air pressure changes

• Positioning of wavelength during cycle

• The amount of seconds per cycle