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Waves 2 P.Porter
Test Description: Wave interference
Instructions: Answer all questions to get your test result.
1) When waves hit a boundary and reflect the angle of the incoming waves are called
A
interferred
B
incident
C
reflected
D
refracted
2) When a standing wave is produced, the part of the wave not moving is called the
A
antinode
B
node
C
normal
D
crest
3) When waves meet an open slit, some of the waves will do what as they pass through the slit
A
be refracted
B
be undisturbed as they pass through
C
be diffracted
D
be reflected
4) If a wave meets a boundary and continues into a more dense medium its path will bend
A
toward the normal in the more dense medium
B
back into the less dense medium away from the normal
C
back into the less dense medium toward the normal
D
away from the normal in the more dense medium
5) Waves traveling in the same medium will have the same speed, but if they have a short wavelength they will have what kind of frequency?
A
A low frequency
B
The same frequency as a long wavelength wave.
C
A high frequency
D
No frequency
6) When two waves on the same medium are traveling in opposite directions, when they meet they will follow what law?
A
Law of Superpositioning
B
Law of Antinodes
C
Law of Reflection
D
Law of Interference
7) The unit of the period of a wave is
A
cycles/second
B
Hertz
C
meters/second
D
seconds
8) If the speed of a wave is 0.3 m/s and its frequency is 1 Hertz, what is its wavelength?
A
3.33 m
B
0.3 m
C
1 m
D
1.3 m/s
9) Waves that have more energy will have larger
A
amplitudes
B
periods
C
wavelengths
D
frequencies
10) A wave has a frequency of 456 hertz. If it has a wavelength of 0.005m what is its velocity?
A
91200 m/s
B
2.28 m/s
C
0.228 m/s
D
9E-7 m/s
*select an answer for all questions
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