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EWIT QUIZ 5,6,7,10 Review Flashcards | StudBud
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EWIT QUIZ 5,6,7,10 Review
EWIT QUIZ 5,6,7,10 Review
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1
High pitches have
Medium Frequencies
Low frequencies
High Frequencies
No Frequencies
2
A "rarefaction" on a longitudinal wave is
The area where the particles spread apart
The area where the particles compress or squeeze together
3
Which of the following does not use digital technology?
AM radio
Bluetooth
WiFi connectivity
4G, 3G, and LTE networks
4
A concave lens:
center is thicker than the edges, makes objects larger (magnifies)
center is thinner than the edges, makes images smaller
5
A wave with higher amplitude has more energy
True
False
6
When is the quiz?
Friday
I have no clue
Wednesday
Monday
7
The following picture shows an oscilliscope making a ___-pitched sound.
high
low
8
Signifies the original resting positing of the wave (the x-axis)
crest
Wavelength
line of origin
amplitude
9
What is the amplitude of this wave? (Each box is 1 cm)
4 cm
1 cm
3 cm
2 cm
10
A
disadvantage
is that
analog signals
tend to
become distorted over long distances
False
True
11
An mechanical wave (sound, etc) NEEDS a medium to travel through
True
False
12
Transparent is defined as:
Matter that Does not allow light to pass through it.
Matter that allows SOME light to pass through it.
Matter that allows ALL light to pass through it.
13
Which medium do sound waves travel the fastest in?
gas
solid
liquid
14
What does it mean when light or sound Refracts?
It absorbs all the waves
It bounces off a surface
It bends the wave as it moves through a medium (material)
15
A convex lens:
center is thinner than the edges, makes objects smaller
center is thicker than the edges, makes objects larger (magnifies)
16
What type of wave is this?
Longitudinal
Transverse
17
Digital communication is a binary code. It uses 0s and 1s to represent information.
True
False
18
Waves carry
Energy Only
Matter
Energy and Matter
19
What type of wave is this?
Transverse
Longitudinal
20
Which wave has a higher frequency?
Wave A
Wave B
21
Which theory do scientists think is the best explanation for the origin of the Universe?
String Theory
Steady State Theory
Chaos Theory
The Big Bang Theory
22
the lowest point of the wave below the origin
Wavelength
crest
amplitude
trough
23
How do we “see” color such as red or green?
All of the visible light waves are reflected
All of the visible light waves are absorbed
All of the visible light waves are absorbed except for the color we see
24
What is refraction?
The bending of metal
The bending of light
The bending of water
The bending of air
25
Why do we see white as a color?
All of the visible light waves are absorbed
All of the visible light waves are absorbed except for the color we see
All of the visible light waves are reflected
26
Opaque is defined as:
Matter that allows SOME light to pass through it.
Matter that allows ALL light to pass through it.
Matter that Does not allow light to pass through it.
27
Concave lenses make things
larger
the same
smaller
28
Convex lenses make things
Smaller
Bigger (Magnified)
upside down
right side up
29
What does it mean when light or sound Reflects?
It bends the wave as it moves through a medium (material)
It absorbs all the waves
It bounces off a surface
30
Which medium do light waves travel the fastest in?
solid
liquid
gas (or vacuum)
31
Digital Signals are a more reliable way to send information than Analog signals
False
True
32
Why do we see black as a color?
All of the visible light waves are absorbed except for the color we see
All of the visible light waves are absorbed
All of the visible light waves are reflected
33
the highest point of the wave above the origin
trough
Wavelength
amplitude
crest
34
Translucent is defined as:
Matter that allows ALL light to pass through it.
Matter that allows SOME light to pass through it.
Matter that Does not allow light to pass through it.
35
The number of waves that travel pass a point in 1 second
wavelength
crest
frequency
amplitude
36
A "compression" on a longitudinal wave is
The area where the particles compress or squeeze together
The area where the particles spread apart
37
On oscilliscope displays, the horizontal axis represents _____________.
voltage
time
frequency
phase
38
Low pitches have
Medium Frequencies
Low frequencies
High Frequencies
No Frequencies
39
An electromagnetic wave NEEDS a medium to travel through
False
True
40
What is the Frequency of this wave
3 Hertz
2 Hertz
1 Hertz
4 Hertz
41
the distance between any two consecutive points on a wave (can be crest to crest, any other points on a wave)
Wavelength
trough
amplitude
crest
42
What type of lens is this?
Convex (Converging)
Concave (Diverging)
43
Which wave has a higher energy?
Wave B
Wave A
44
What type of lens is this?
Concave (Diverging)
Convex (Converging)
45
Where can I find the link for quiz review in Canvas?
The deep dark abyss that is my soul
No where!!!!
The announcements
The module Folder
46
measured from resting position to crest
trough
amplitude
Wavelength
crest
