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Waves
Test Description: 25.1-25.2
Instructions: Answer all questions to get your test result.
1) The source of all wave motion is
A
regions of variable high anf low pressure.
B
something that vibrates.
C
the movement of matter.
D
a harmonic object.
2) The time needed for a wave to make one complete cycle is its
A
velocity.
B
period.
C
frequency.
D
amplitude.
3) The distance between successive identical parts of a wave is called its
A
amplitude.
B
frequency.
C
period.
D
wavelength.
4) Frequency and period are directly related.
A
True
B
False
5) If you double the frequency of a vibrating object, its period is
A
quadrupled.
B
cut in half.
C
doubled.
D
quartered.
6) Waves transmit energy not matter.
A
True
B
False
7) Which of the following will have an affect on the period of a pendulum.
A
Both length of the string and mass attached.
B
Length of the string.
C
Mass attached to it.
D
Neither mass nor length.
8) Frequency is measured in
A
meters per second
B
hertz
C
meters
D
seconds
9) A pendulum with a length of 25 cm is swung back and forth with a 30 g mass attached to it. If you add another 30 g mass to the end of the 25 cm pendulum, its period will
A
decrease.
B
stop.
C
not change.
D
increase.
10) The number of waves/vibrations per unit time.
A
amplitude
B
period
C
frequency
D
crest
*select an answer for all questions
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