1. A single disturbance that moves from point to point in a medium is called
a. period.
b. periodic wave.
c. wavelength.
d. pulse.
2. What type of wave is produced when the particles of the medium are vibrating to and fro in the same direction of wave
propagation?
a. longitudinal wave.
b. sound wave.
c. standing wave.
d. transverse wave.
3. What type of wave is produced when the particles of a medium are vibrating at right angles to the direction of wave
propagation?
a. longitudinal wave.
b. sound wave.
c. standing wave.
d. transverse wave.
4. A transverse wave is traveling through a medium. See diagram below. The particles of the medium are moving.
a. parallel to the line joining HU.
b. along the line joining TZ.
c. perpendicular to the line joining HU.
d. at various angles to the line TZ.
e. along the curve THVIXJZ.
5. If the energy in a longitudinal wave travels from south to north, the particles of the medium move
a. from north to south, only.
b. both north and south.
c. from east to west, only.
d. both east and west.
6. As a pulse travels though a uniform medium, the speed of the pulse
a. decreases.
b. increases.
c. remains the same.
7. The speed of sound depends most on the
a. amplitude of the sound wave.
b. intensity of the sound.
c. loudness of the sound.
d. transmitting medium.
e. pitch of the sound.
8. As a wave travels into a medium in which its speed increases, its wavelength
a. decreases.
b. increases.
c. remains the same.
9. As a wave passes into a new medium, which characteristics of the wave NEVER changes?
a. speed
b. frequency
c. wavelength
10. What is the amplitude of the wave in diagram 5-21?
a. 0.03 m.
b. 0.04 m.
c. 0.05 m.
d. 0.06 m.
11. The wavelength of the wave in diagram 5-21 (above – other page) is
a. 0.03 m.
b. 0.04 m.
c. 0.06 m.
d. 0.08 m.
13. How many complete waves are shown in diagram 5-39?
a. 1
b. 2
c. 3
d. 1.5
14. If the distance from point A to point G in diagram 5-39 (above) is 60 cm, then the wavelength is
a. 20 cm.
b. 40 cm.
c. 60 cm.
d. 90 cm.
15. The number of cycles of a periodic wave occuring per unit time is called the wave's
a. wavelength.
b. period.
c. amplitude.
d. frequency.
16. A source S generates circular waves on a lake. If the frequency of the source is 2.0 Hz and the wave speed is 5.0 m/s
then the distance between adjacent wave crests is
a. 0.20 m.
b. 0.40 m.
c. 1.25 m.
d. 2.5 m.
e. 10 m.
17. What is the frequency of a water wave that has a speed of 0.4 meter per second and a wavelength of 0.02 meter?
a. 10 hertz.
b. 20 hertz.
c. 0.008 hertz.
d. 0.5 hertz.
18. Which one of the following properties of a wave is independent of all the others?
a. amplitude.
b. frequency.
c. period.
d. velocity.
19. A pendulum makes 40 vibrations in 20 s. Its period is
a. 0.50 Hz.
b. 0.50 s.
c. 2.0 Hz.
d. 2.0 s.
20. A period of 0.005 s yields a frequency of
a. 20 HZ
b. 50 Hz
c. 200 Hz
d. 500 Hz
e. wavelength.
e. 8.0 x 102 Hz.
e. 2000 Hz
21. The number of waves generated per second by a source is called the frequency of the source.
a. True
b. False
22. The METRIC unit for frequency is hertz.
a. True
b. False
23. Doubling the frequency of a wave source doubles the speed of the waves.
a. True
b. False
24. A vibrating object with a frequency of 200 Hz produces sound which travels through air at 360 m/s. The number of
meters separating the adjacent compressions in the sound wave is
a. 0.900.
b. 1.80.
c. 3.60.
d. 7.20.
e. 200.
25. If the frequency of a wave is doubled and if the speed remains constant, its wavelength is
a. quartered.
b. halved.
c. unchanged.
d. doubled.
27. When a pulse reaches a boundary between two different media, it will be
a. reflected, only.
b. transmitted, only.
c. partly reflected and partly transmitted.
d. neither reflected nor transmitted.
32. In an experiment to find the speed of waves in a rope, a standing wave pattern is established as shown in diagram 553. The vibrating end makes ninety vibrations per minute. The speed of the waves is
a. 3 m/s.
b. 6 m/s.
c. 180 m/s.
d. 360 m/s.
e. 540 m/s.
33. Standing waves are produced in a string by two sources each having a frequency of 100 Hz. The distance from the
2nd node to the 5th node is 60 cm. The wavelength in centimeters of the original traveling wave is
a. 50.
b. 40.
c. 30.
d. 20.
e. 15.
34. Waves generated at A are reflected at B to produce a standing wave as shown in diagram 5- 56. The number of
antinodes in the diagram is
a. 3.
b. 5.
c. 6.
d. 7.
e. 12.
35. The standing wave pattern in diagram 5-56 (above) is representative of the ____ harmonic.
a. third
b. fifth
c. sixth
d. seventh
e. twelfth
36. The distance between successive nodes in a standing wave pattern is
a. 1/4 wavelength.
b. 1/2 wavelength.
c. 3/4 wavelength.
37. A node is a point where there is always
a. a double crest.
b. a double trough.
d. destructive interference.
d. 1 wavelength.
e. 2 wavelengths.
c. constructive interference.
e. a double rarefaction.
38. Constructive interference of waves occurs when two crests meet.
a. True
b. False
39. Which phenomenon is produced by two or more waves passing simultaneously through the same region?
a. refraction.
b. diffraction.
c. interference.
d. reflection.
40. Two pulses in a stretched spring approach P as shown in diagram 5-85. Which diagram in diagram 5-86 best
illustrates the appearance of the spring when each pulse meets at P?
a. 1
b. 2
c. 3
d. 4