Vocabulary
Wave Diagrams
Frequency
Period
Wave speed
100
What is the bottom of a wave called?
trough
100
What is the amplitude of the wave shown?
5
100
The frequency is the reciprocal of ?
period
100
Period is the inverse of what?
Frequency
100
How do you calculate the speed of a wave?
Multiply the frequency and wavelength
200
what is the distance between two crests
Wave length
200
What is the period of the wave shown?
10s
200
Describe what happens to the wavelength as the frequency of a wave increases.
Wavelength decreases
200
What is the unit for period?
s
200
A periodic wave having a frequency of 5.0 hertz and a speed of 10. m/s has a wavelength of ?
2m
300
the number of waves produced in a given amount of time. Measured in Hertz
frequency
300
How many waves are shown?
4
300
What is the unit for frequency
hertz
300
A physics student takes her pulse and determines that her heart beats periodically 60 times in 80 seconds. What is the period of her heartbeat?
1.33 s
300
One end of a rope is attached to a variable speed drill and the other end is attached to a 5.0kg mass. The rope is draped over a hook on a wall opposite the drill. When the drill rotates at a frequency of 20.0Hz, standing waves of the same frequency are set up in the rope. The diagram below shows such a wave pattern.
Calculate the speed of the wave in the rope.
60 m/s
400
what is the time for 1 wave cycle
period
400
Which wave has a higher frequency? (top or bottom)
bottom
400
An observer counts 4 complete water waves passing by the end of a dock every 10. seconds. What is the frequency of the waves?
0.4 Hz
400
What is the period of a sound wave having a frequency of 340. hertz?
.00294s
400
A wave traveling through a uniform medium has an amplitude of 0.40 meter, a wavelength of 0.60 meter, and a frequency of 12. hertz. Calculate the speed of the wave.
7.2m/s
500
wave property that measures the energy of a wave
amplitude
500
What is the frequency of the wave shown?
0.05Hz
500
A boy pushes his sister on a swing. What is the frequency of oscillation of his sister on the swing if the boy counts 90. complete swings in 240. seconds?
0.875Hz
500
While sitting in a boat, a fisherman observes that two complete waves pass by his position every 4 seconds. What is the period of these waves?
2s
500
The diagram below represents a periodic wave traveling through a uniform medium.
If the frequency of the wave is 3.0 hertz, what is the speed of the wave?
12 m/s