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Progress Quiz #2 Revision Flashcards | StudBud
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Progress Quiz #2 Revision
Progress Quiz #2 Revision
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1
On the picture, what is the harmonic of this wave when it is a string standing wave?
1st Harmonic
4th Harmonic
3rd Harmonic
5th Harmonic
2
When a wave is reflected from a
free moving
boundary the returned wave is...
Standing Wave
Inverted
Right side up
Refraction
3
Total Internal Reflection occurs when...
the Critical angle is met
the angle of incidence is less than the Critical angle
there is no refracted ray
the angle of incidence is greater than the Critical angle
4
The theory of special relativity is based upon one fact...
Time speeds up
The speed of light is constant
E=mc2
Time slows down
5
What TWO wave characteristics must be the same to produce a standing wave?
Wavelength and Amplitude
Amplitude and Velocity
Amplitude and Frequancy
Frequancy and Wavelength
6
Energy of a photon depends on
Work and Frequency
Plank's Constant and Frequency
Frequency
Radiation emission around it.
7
What photon of light is traveling faster
blue
green
they are all the same
red
8
At which two points is constructive interference occurring?
B and C
A and B
A and D
B and D
9
A vacuum has a refractive index of...?
3
2
1
1.33
10
What theory is length contraction in?
Special
Classical
General
The astronomy
11
Sound wave
Wave of compression and rarefaction
Wave in infrared and ultraviolet
Two adjacent compressions of longitude
maximum distance particles of medium move
12
Light waves refract when passing across the boundary between two media because ___.
There is a change in frequency
they encounter excessive forces
there is a change in the color
threre is a change in light speed
13
What is the refractive index of the plastic?
B 1.22
C 1.41
A 0.71
D 1.50
14
Destructive interference
2 amplitudes have opposite signs, results in lower amplitude
physics
ruins things
15
Two lightning bolts strike at the same time. At a different location, the two lightning bolts
may or may not be seen at the same time.
will not be seen at the same time.
will also be seen at the same time.
16
Einstein's first postulate of Special Relativity stated that...
Earth is the optimal and absolute reference frame
The observer must be at rest to apply the laws of physics
All laws of physics apply in all inertial reference frames
Only the laws of light apply in inertial reference frames
17
The refractive index is equal to...
the frequency of the wave
sine angle of incidence divided by sine angle of refraction
the speed of the light wave
the Critical angle
18
When a wave is reflected from a
free moving
boundary the returned wave is...
Inverted
Refraction
Standing Wave
Right side up
19
What is Snell’s Law?
n1(sinθ1)=n2(sinθ2)
n1(sinθ1)=n2(sinθ2)⋅3×108
n1(sin-1(θ1))=n2(sin-1(θ2))
n2(sinθ1)=n1(sinθ2)
20
Who first developed the special theory of relativity?
Jerry
Mr. Kelly
Einstein
Newton
21
What does Constructive interference?
When one waves crest and the trough of another overlap
When the crest of waves overlap
22
What is a standing wave?
pattern of vibration- stimulates a wave thats still standing
periodic disturbance in a solid, liquid, or gas
change in direction of a wave
23
Calculate the critical angle for the glass-air boundary.
45 degrees
54 degrees
37 degrees
34 degrees
24
Time ticks at the same rate everywhere in the universe.
False
True
25
According to Special Relativity, the speed of light ...
Increases when relative speeds add up
Decreases when relative speeds go down
Stays constant in all frames of reference
26
What is time dilation measured by?
A clock
1 observer
2 observers
Light years
27
Snell’s law relates ____________.
Light refraction
Light transmission
Light Absorption
Light relfection
28
When light travels from air into glass it refracts and....
the speed, wavelength and frequency change.
the speed and wavelength changes, and the frequency stays the same.
the speed and frequency change, and the wavelength stays the same.
only the speed changes
29
What does “n” represent in Snell’s Law?
a random number
index of refraction
number of moles
distance the light travels
30
Which wave has the biggest wavelength?
B
A
C
31
According to Snell's law, light traveling from a vacuum to glass will __________.
speed up
stop completely
travel at the same speed
slow down
32
What is a fringe?
A cold place to store food
Off to the side and not important
An edging to an article of clothing
Bands of light and dark
33
Which of these is not a transverse wave?
Sound
Light
Wave on the sea
Mexican
34
The dark and bright fringes that are seen in Young's double slit experiment are caused by...
overlapping particles of light
superposition
diffraction
constructive and destructive interference
35
Thomas Young’s double slit experiments emphasized the
particle nature of light.
wave nature of light.
