Sound Waves Review

What is Letter A?

• Crest

• Wavelength

• Amplitude

• Frequency

What is letter B?

• Crest

• Wavelength

• Trough

• Frequency

Which letters are pointing to the Amplitude?

• B

• E

• C

• F

A wave has a frequency(f) of 2 waves per second and a wavelength(w) of 5 cm. What is the velocity of the wave? HINT: V = f x w

• 10cm/s

• 7cm/s

• 3cm/s

• Not possible

The sound is now a higher note/tone. What changed?

• increase in amplitude

• decrease in amplitude

• increase in frequency

• decrease in frequency

The volume of the sound just got softer. What happened to the wave?

• increase amplitude

• decrease amplitude

• increase frequency

• decrease frequency

When the frequency changes on a wave, what other property also changes?

• amplitude

• wavelength

• crest

• node

How many wavelengths are there in this standing wave?

• 1

• 1.5

• 3

• 4

How many waves are on this string?

• 1

• 2

• 4

• 8

The frequency of this standing wave is 60 hz. What is the velocity of this wave?

• 20 m/s

• 60 m/s

• 90 m/s

• 180 m/s