Waves Unit Test

The relationship between wavelength and frequency is λ=c/f.  Calculate the wavelength of light that has a frequency of 5.2 x 10¹² 1/s. The speed of of light is 3.0x 10⁸ m/s.

• 5.8 x 10 ^-5 m
• 5.8 x 10 ^-7 m
• 5.19 x 10 ¹⁴ m
• 1.56 x 10 ²³ m

High frequency waves have _________ wavelengths.

• varying
• long
• the same
• short

The distance between two crests or two troughs of a wave is called:

• frequency
• amplitud
• wavelength
• hertz

1.  Frieda the fly flaps its wings back and forth 121 times each second. The period of the wing flapping is 

• 0.008 Hz
• 0.008 s
• 121 Hz
• 121 s

1.  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

What are the units of frequency?

• m/s
• s
• Hz
• m

Which wave in the diagram has the greatest frequency?

• 1
• 2
• 3
• 4

Which wave in the diagram has the greatest wavelength?

• 1
• 2
• 3
• 4

The speed of a wave is its wavelength multiplied by its ___________ 
Or the formula 
C = λ  x  ν

• amplitude
• vibration
• frequency
• reflection

Velocity= ________
Wavelength= .5m
Frequency= 150 hertz

• .75 m/s
• 75 m/s
• 300 m/s