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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
a harmonic object.
B
the movement of matter.
C
something that vibrates.
D
regions of variable high anf low pressure.
2) The time needed for a wave to make one complete cycle is its
A
frequency.
B
period.
C
amplitude.
D
velocity.
3) The distance between successive identical parts of a wave is called its
A
amplitude.
B
wavelength.
C
period.
D
frequency.
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
quartered.
B
cut in half.
C
quadrupled.
D
doubled.
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
seconds
C
hertz
D
meters
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
frequency
B
period
C
amplitude
D
crest
*select an answer for all questions
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