U9: Wave & Sound Math Review

One end of the rope is vibrated to produce a wave with a wavelength of .25 m.  The Frequency of the wave is 3.0 Hz.  What is the speed of the wave?

• 3.00 m/s
• 2.50 m/s
• .75 m/s
• 1.25 m/s

A tennis coach paces back and forth along the sideline 10 times in 2 minutes. The frequency of her pacing is 

• 5 Hz
• 5 s
• 0.08 Hz
• 0.08 s

 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?

• 500 m/s
• 50 m/s
• 5 m/s
• 0.5 m/s

A guitar string vibrates with a frequency of 320 hz. If the wavelength of the vibration is 0.23 meters what is the speed of the wave?

• 320.23 m/s

• 1391.3 hz

• 73.6 m/hz

• 73.6 m/s

A fly flaps its wings back and forth 200 times each second. Calculate the period of a wing flap.

• 200
• 0.5
• 0.05
• 0.005

The second hand complete one cycle every 60 seconds.  What is the frequency?

• 60
• 0.0167

If 6 waves pass in 2 seconds, what is the period?

• 6
• 3
• 2
• 0.33

If 10 waves pass every second, what is the frequency?

• 10 Hz
• 0.1 Hz

A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?

• 0.2
• 5
• 500
• 20

A wave has a wavelength of 2 meters and a frequency of 1.5 Hz.What is its speed?

• 0.75
• 3
• 1.33
• 3.5