Name : _________________________________ Period: _____ Date: _____________________
Ch 14 Waves pRETEST
Vocabulary. Match the letter on the left with the description that best matches it on
the left.
1. _______ forms where two media meet
2. _______ “height” of a wave, distance from
resting position to crest or trough
3. _______ when two waves of opposite amplitude
meet, effects can cancel out
4. _______ units for frequency
A. amplitude
B. antinode
C. compression
D. constructive interference
E. crest
F. destructive interference
G. frequency
H. Hertz
I. longitudinal wave
J. mechanical wave
K. medium
L. node
M. period
N. rarefaction
O. standing wave
P. surface wave
Q. transverse wave
R. trough
S. wavelength
5. _______ area on a longitudinal wave where
matter is spread apart.
6. _______ substance through which a wave’s
energy travels
7. _______ a wave which appears to be “flipflopping”, caused by interference
8. _______ usually measured from one crest to
the next or one trough to the next
9. _______ area of a standing wave which does
not appear to be moving
10. _______ number of waves in a certain amount
of time
11. _______ “highest” point of a wave, maximum positive displacement
12. _______ particles in the wave move perpendicular to the direction of travel
13. _______ the amount of time for 1 wave to pass
14. ________ area of a standing wave that is maximum displacement (most movement)
15. _______ particles move parallel to direction of travel
16. _______ “lowest” point on a wave, maximum negative displacement
17. _______ wave that must have something to travel through
18. _______ when two waves of similar wavelength meet, effects add together
19. _______ area of a longitudinal wave where matter is “scrunched” together
Diagrams:
Use this diagram to identify the different parts of a wave.
Wave A
E
C
D
F
Wave B
G
H
20. ______ amplitude
21. ______ crest
22. ______ trough
23. ______ wavelength
24. ______ transverse wave
25. ______ longitudinal wave
26. ______ compression
27. ______ rarefaction
Use the following waves to answer questions 28-34.
Wave A
Wave B
Wave C
Wave D
28. ________ Which wave has the largest wavelength?
29. ________________What is its wavelength (use a ruler to measure in mm)
30. ________ Which wave has the highest frequency?
31. ________________ What is its frequency?
32. ________________What is its period?
33. ______ Which wave has the most energy?
34. What is the relationship between wavelength and frequency? (Please include a
relationship statement and state if it is direct or indirect.)
35. On the grid to the right, draw a
transverse wave with an amplitude of 4
units and a wavelength of 3 units.
36. In the space below draw a standing
wave with a frequency of 2.
Here is a picture of two waves coming towards each other. Draw what happens
37. when they meet
38. after they meet
Problems: Use the following formulas to answer these problems. Be sure to show
your work and include the correct units and number of sig figs.
=f
 = /T
f= 1/T
T= 1/f
39. _________________________ A boat rocks up and down with a frequency of 0.5 Hz.
If the waves that rock the boat are 4 meters long, what is the speed of the
waves?
40. _________________________ Waves pass the end of a dock 2 times every second. If
the waves are traveling at a speed of 6 m/s, what is the wavelength?
Answer Key__
Name : __
Period: _____ Date: _____________________
Ch 14 Waves pRETEST
Vocabulary. Match the letter on the left with the description that best matches it on
the left.
P___ forms where two media meet
1. ___
A___ “height” of a wave, distance from
2. ___
A. amplitude
B. antinode
resting position to crest or trough
C. compression
D. constructive interference
meet, effects can cancel out
E. crest
F. destructive interference
F___ when two waves of opposite amplitude
3. ___
H___ units for frequency
4. ___
N___ area on a longitudinal wave where
5. ___
G. frequency
H. Hertz
matter is spread apart.
I. longitudinal wave
J. mechanical wave
energy travels
K. medium
L. node
flopping”, caused by interference
M. period
N. rarefaction
the next or one trough to the next
O. standing wave
P. surface wave
not appear to be moving
Q. transverse wave
R. trough
K___ substance through which a wave’s
6. ___
O___ a wave which appears to be “flip-
7. ___
S___ usually measured from one crest to
8. ___
L___ area of a standing wave which does
9. ___
G___ number of waves in a certain amount
10. ___
S. wavelength
of time
E___ “highest” point of a wave, maximum positive displacement
11. ___
Q___ particles in the wave move perpendicular to the direction of travel
12. ___
M___ the amount of time for 1 wave to pass
13. ___
B__ area of a standing wave that is maximum displacement (most movement)
14. ___
I
15. ___ ___ particles move parallel to direction of travel
R___ “lowest” point on a wave, maximum negative displacement
16. ___
J___ wave that must have something to travel through
17. ___
D___ when two waves of similar wavelength meet, effects add together
18. ___
C___ area of a longitudinal wave where matter is “scrunched” together
19. ___
Diagrams:
Use this diagram to identify the different parts of a wave.
Wave A
E
C
D
F
Wave B
G
H
D___ amplitude
21. __
F___ trough
23. ___
20. __
22. __
E___ crest
C__ wavelength
A __ transverse wave
25. ___
H __ compression
27. ___
24. ___
26. ___
B __ longitudinal wave
G ___ rarefaction
Use the following waves to answer questions 28-34.
Wave A
Wave B
Wave C
Wave D
C
28. ___
___ Which wave has the
wavelength?
largest
33 mm___What is its wavelength (use a ruler to measure in mm)
29. __
D ___ Which wave has the highest frequency?
30. ____
9 Hz_____ What is its frequency?
31. ____
.1 sec. ___What is its period?
32. __
D ___ Which wave has the most energy?
33. ___
34. What is the relationship between wavelength and frequency? (Please include a
relationship statement and state if it is direct or indirect.)
indirect
as wavelength goes up frequency goes down
as frequency goes up, wavelength goes down
35. On the grid to the right, draw a
transverse wave with an amplitude of 4
units and a wavelength of 3 units.
36. In the space below draw a standing
wave with a frequency of 2.
Here is a picture of two waves coming towards each other. Draw what happens
37. when they meet
38. after they meet
Problems: Use the following formulas to answer these problems. Be sure to show
your work and include the correct units and number of sig figs.
=f
 = /T
f= 1/T
T= 1/f
2 m/s____ A boat rocks up and down with a frequency of 0.5 Hz.
39. __
If the waves that rock the boat are 4 meters long, what is the speed of the
waves?
Speed = distance/time
= /T or = f
 =4(.5)
3m ___ Waves pass the end of a dock 2 times every second.
40. ___
If
the waves are traveling at a speed of 6 m/s, what is the wavelength?
Speed = distance/time
= f
6 = (2)