Test 8th Grade 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 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 wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?

• 25 m
• 125 m
• 5 m
• 25 m/s

A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?

• 34 m/s
• 3400 Hz
• 3400 m/s
• 34 Hz

crest to crest or trough to trough

• crest
• trough
• amplitude
• wavelength

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 wave with a frequency of 15 Hz has a wavelength of 3 m. What is the speed of this wave?

• 0.2 m/s

• 18 m/s

• 5 m/s

• 45 m/s

A wave traveling at 230 m/s has a wavelength of 2.1 meters. What is the frequency of this wave?

• 110 Hz

• 110 m/s

• 483 Hz

• 483 m/s

A wave has a frequency of 540 Hz and is traveling at 340 m/s. What is its wavelength?

• 200 m

• 0.63 m

• 1.6 m

• 183600 m

A wave has a wavelength of 0.5 meters and a frequency of 120 Hz. What is the wave’s speed?

• 240 m/s

• 0.004 m/s

• 30 m/s

• 60 m/s