Properties of Sound Waves

UNIT 4 WAVES

Lesson 12: Properties of Sound Waves (part 2)

6.P.1 Understand the properties of waves and the

wavelike property of energy in earthquakes, light and

sound waves.

6.P.1.3 Explain the relationship among the rate of vibration, the
medium through which vibrations travel, sound and hearing.

What was the

loudest sound that

you heard
yesterday?

Open Ended

What was the loudest sound that you heard yesterday?

Music Lab Experiment

Observe what

happens as you
touch each of
the piano keys.

Make

observations for

what you see

and hear.

​https://musiclab.chromeexperiments.com/Sound-Waves/

Open Ended

What did you hear?

Open Ended

What did you see?

Pitch and Frequency

Sound Waves

Properties of Sound Waves
• Frequency – the number of

vibrations that occur per
second

• Wavelength changes with

frequency

• Measured in Hertz (Hz)
• 50Hz = 50 vibrations per

second

Sound Waves

Properties of Sound Waves
• Frequency – the number of

vibrations that occur per
second

• Wavelength changes with

frequency

• Measured in Hertz (Hz)
• 50Hz = 50 vibrations per

second

Multiple Choice

Which wave has the greatest frequency?

• blue

• Red

• orange

• Green

Sound Waves

Properties of Sound Waves
• Pitch – a description of how high

or low the sound seems to a
person

• High frequency = high pitch
• Low frequency = low pitch
• Example: a young girl might

have a squeaky (high pitched)
voice, an older man might have
a deep (low pitched) voice

Multiple Choice

Which wave is the loudest?

• blue

• Red

• orange

• Green

Multiple Choice

Which wave is the quietest?

• blue

• Red

• orange

• Green

Multiple Choice

Which wave has the highest pitch?

• blue

• Red

• orange

• Green

Multiple Choice

Which wave has the lowest pitch?

• blue

• Red

• orange

• Green

Multiple Select

• A

• B

• C

• E

• F

Sound WavesWhich waves have the highest pitch?

Drag and Drop

Which waves are the loudest?​ ​ ​ ​ ​

Placeholder

Placeholder

Drag these tiles and drop them in the correct blank above

C

E

B

D

A

F

Drag and Drop

Which waves are the quietest?​

Placeholder

​

Placeholder

Drag these tiles and drop them in the correct blank above

B

D

A

C

E

F

Drag and Drop

Which waves have the highest pitch?​

Placeholder

​

Placeholder

Drag these tiles and drop them in the correct blank above

B

F

A

C

E

D

Drag and Drop

Which waves have the lowest pitch?​​

Placeholder

​

Placeholder

​

Placeholder

Drag these tiles and drop them in the correct blank above

C

D

A

E

F

B