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Worksheets17.2-17.4 quiz(Demay, Dakota)
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Periodic motion is the time interval that repeats at any motion.
a)
true
b)
false
2.
Period is a period of time that completes one whole cycle.
a)
true
b)
false
3.
What is the unit hertz used for?
a)
frequency
b)
speed
c)
light
d)
direction
4.
What is wavelength?
a)
the speed of light
b)
the distance between two fixed points on a wave.
c)
the direction of the wave
d)
surface waves
5.
Increasing the frequency of a wave increases its wavelength.
a)
true
b)
false
6.
What is the equation for speed?
a)
wavelength X speed
b)
Wavelength X frequency
c)
frequency X period
d)
Period X speed
7.
What is reflection?
a)
when the wave bounces off a surface and it cannot pass through
b)
the bending of a wave
c)
the bending of a wave through an obstacle.
8.
Reflection can change the speed or frequency of a wave.
a)
true
b)
false
9.
Refraction is the bending of a wave that enters a new medium at an angle.
a)
true
b)
false
10.
In diffraction, it is the bending of waves as it moves through what?
a)
obstacle
b)
narrow opening
c)
both
11.
A wave diffracts more if its wavelength is large compared to the size of the opening or obstacle.
a)
true
b)
false
12.
The two types of interference is destructive and refraction
a)
true
b)
false
13.
What is a standing wave?
a)
a wave that does not move
b)
a wave that does move
c)
where the crest and trough meet
d)
I have no idea
14.
Sound waves are longitudinal waves.
a)
true
b)
false
15.
What unit compares the intensity?
a)
hertz
b)
decibel
c)
m/s
d)
meters
16.
The three types of ears are outer, inner, and first ear.
a)
true
b)
false
17.
When an sound source gets closer to you, you can hear a __________ frequency
a)
higher
b)
lower
c)
nothing
18.
Sound is recorded by converting sound waves into electronic signals.
a)
true
b)
false
19.
Ultrasound can be used varied in..
a)
sonar
b)
ultrasound imaging
c)
both
20.
Resonance is the response of standing wave to another of the same frequency.
a)
true
b)
false
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