stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Semester 2 Exam Review Flashcards | StudBud
Explore
/
Semester 2 Exam Review
Semester 2 Exam Review
72 terms
·
StudBud Administration
·
85 plays
#physics #review
Flashcards
72 cards
F
Practice quiz
P
Host live
L
Questions
72
Answers
1
How is a photon emitted from an atom?
Neutrons are destroyed
The atom is split
Electrons change energy levels
Protons are added
2
What will Ms. Carlin's new last name be?
Bacquerel
Bakhuizen
Backlan
Backofen
3
The color of light that we see depends on the
Crest
Amplitude
Period
Wavelength
4
A 1750 lm light source is 3.0 m above a desk. What's the illumination on the desk’s surface?
46.4
185.78
15.48
61.92
5
Period is best described as:
A form of punctuation that ends a sentence
Change in time that it takes to fulfill a distance
Number of oscillations it makes each second
The time taken for one full oscillation
6
Einstein described this noticing metal emitted electrons when some light hit it, but not others
Photoelectric Effect
Light as a wave
Heisenberg Uncertainty Principle
Law of reflection
7
U-234 decays tolead-214 through a series of alpha decays. How many alpha particles are emitted?
1
10
5
2
8
Which of these describes the illuminance equation?
n=c/v
E=P/(4πr2)
P=E/(4πr2)
E=4Pπr2
9
When parallel rays are reflected in a parallel manner, that is _______ reflection
parallel
specular
complete
diffuse
10
Which describes the rate at which light illuminates a surface?
luminous flux
lm
lx/m2
lm/m2
11
Visible light has a higher frequency than
gamma rays
infrared rays
ultraviolet rays
x-rays
12
Either a proton or aneutron
Nucleon
Quark
Nuclide
Lepton
13
The main differencebetween fission and fusion is that
Fission= divide nucleus;fusion= combine masses, form nucleus
Fusion= divide nucleus;fission= combine masses, form nucleus
Fission= add a nucleus; fusion = remove mass to form nucleus
Fission = remove mass to form nucleus; fusion= add a nucleus
14
People who cannot see distant objects well are nearsighted. What kind of lenses are they given?
optic
camera
concave
convex
15
Charging by induction_________.
Results in a permanentcharge
Separates chargeswithin an object
Creates charges withinan object
Transfers charges by touching two objects
16
A 2-cm thick cardboard would be
most
effective in protecting against which type of radiation?
alpha
x-ray
beta
gamma
17
__________ says that ϴi = ϴr.
Law of refraction
Law of reflection
Law of superposition
Law of interference
18
Find the speed of antimony trioxide if it has an index of refraction of 2.53.
1.19 X 108 m/s2
1.19 X 108 m/s
8.4 x 10-9 m/s2
8.4 x 10-9 m/s
19
3 isotopes ofU have mass # of 234, 235, and 238. Which can't be the # of one of their neutrons?
143
142
145
146
20
What is the name of the pinata in the athletic training room?
Tabby
Lily
Tiger
Ally
21
Elementary particles of protons, mesons, & neutrons; appear to make up all matter
Quark
Nucleon
Lepton
Nuclide
22
1.5 A of current is connected to a 24-V source. What is theresistance of the current?
16 ohms
0.063 ohm
11 ohms
54 ohms
23
What is Ms. Carlin's middle name?
Wilhemina
Wincia
Winifred
Winona
24
What does E stand for?
both energy and luminous flux
none of the answers match
energy of a photon
luminous flux
25
Which of these aboutplanet Earth is true? Geographic ________ matches ________________ .
South; polar south
South; polar north
East; polar west
North; polar north
26
In a vacuum, all electromagnetic waves have the same
frequency
speed
amplitude
wavelength
27
Waves are 0.06 m long. Frequency is 4.8 oscillation/s. How many waves are emitted in 0.50 s?
9.6
0.14
0.21
2.4
28
Au-191 has a half-life of 12.4 hrs. If we start with 13.2-mg, what will remain after 37.2 hrs?
0.825mg
1.65mg
6.60mg
4.40mg
29
Charged particles andmagnets are similar: like poles/charges __ and oppositepoles/charges __.
Repel; repel
Repel; attract
Attract; attract
Attract; repel
30
The point where light rays originating from a point on the object converge is called:
focal length
focus point
focal point
illuminated source
31
The mass of a proton is1.67 x 10
-27
kg. Find theenergy equivalent (J) of the proton’s mass.
1.50 x 1010J
5.0 x 1019 J
1.50 x 10-10J
5.0 x 10-19J
32
Waves are 0.06 m long. Frequency is 4.8 oscillation/s. What is the speed of the water waves?
0.29
0.17
0.013
80
33
What is the currentthrough a 75-W lightbulb that is connected to a 125-V outlet?
1.67 A
0.6 A
9375 A
0.3 A
34
Translucent describes an object that:
Emits light
Transmits light, but doesn't let objects be seen clearly
Completely transmits light
Does not transmit light, but reflects some of it
35
The result of the superposition of two or more waves is called
Interference
Node
Ray
Antinode
36
The scale that is used to compare sound is called
Sound level
Logarithmic level
Loudness level
Decibel level
37
A 15Ω electric heateroperates on 120-V outlet. How muchenergy is used by the heater in 30 sec?
1800 J
29000 J
3600 J
960 J
38
Which would providevoltage to a circuit?
N
H
K
F
39
As matter accelerates its speed approaching the speed oflight, what happens
time moves quicker
the laws of physics deteriorate
time moves slower
the mass of a moving object measures less
40
A 2280 Hz sound wave has a wavelength of 0.655 m in an unknown medium. Identify the medium.
Iron
Copper
Air
Water
41
A light bulb with a potentialdifference of 120 V carries a current of 1.5 A. What is the power?
0.013 W
80 W
120 W
180 W
42
Which of these isswitch?
A
B
C
D
43
Nucleus of an isotope
Nucleon
Quark
Lepton
Nuclide
44
The resulting wave has a point where the 2 waves meet and are in the same location called a(n):
Antinode
Interference
Node
Ray
45
For a wire that obeysOhm’s law, the resistance of a wire depends on the _______ the wire.
Power delivered by
Voltage across
Current in
Length of
46
What is the wavelength of a 19 Hz sound wave in helium at 0°C?
51
17
79
18
47
During beta decay:
Other types decay are also occurring
Emission of a helium nucleus from the atom’s nucleus
A neutron is changed to a proton within the nucleus
Redistribution of the energy within the nucleus
48
Which of these is NOT amethod of detecting radiation?
Photographic plates
Substances that areionized by radiation
Substances thatfluoresce in response to radiation
Observing a fluorescenteffect
49
Which of these is not an illuminated source?
earth
moon
star
you, right now
50
Frequency is measured in
Hertz
Meters
Newtons
Seconds
51
Polonium-210 has ahalf-life of 38 days. How much of a2.34kg sample will remain after 4 years?
1.50mg
0.644mg
10.6g
1.51g
52
Coulomb is a measure of
resistance
electric potential
charge
current
53
Light is incident upon ethanol at an angle of incidence of 37°. What's the angle of refraction?
54.9
26.3
27.0
53.1
54
A flashlight bulb is rated at 0.90 W. If the lightbulb drops 3.0 V, how muchis the current?
0.3 A
2.7 A
2.43 A
3.3 A
55
What is the result ofthe radioactive decay of carbon-14 to nitrogen14?
Number of protonsdecreases
Nuclei become lessstable
Nuclei become morestable
Number of neutronsdecreases
56
The type of wave that results from the interaction would be a
Longitudinal
Standing
Transverse
Surface
57
If both the voltage and the resistance are halved, the current will be
Multiplied by 4
No change
Divided by 2
Multiplied by 2
58
Magnetic force on acurrent-carrying wire in a magnetic field is __ the direction of thecurrent.
Opposite
Parallel to
The same as
Perpendicular to
59
Lightning rods are anexample of:
Ground
Charging by conduction
Charging by induction
Resistor
60
The electric forcebetween two charges is _______ to the square of the distance between them.
Directly proportional
Equal
Not related
Inversely proportional
61
Particleaccelerator in which magnetic field is synchronized to particle beam of increasing KE
Synchronometer
Particleaccelerator
Quark
Alphadecay
62
A strong lightning bolttransfers about 25 C to Earth. How manyelectrons are transferred?
4.0 x 1018electrons
1.563 x 1018 electrons
4.0 x 10-18electrons
1.563 x 1020 electrons
63
-2.0 x 10
-4
C and 8.0 x 10
-4
C areseparated by 0.30 m. What's the forcebetween the 2 charges?
3.6 x 106 C
2.0 x 106 C
4.0 x 105 C
1.6 x 104C
64
When describing illuminance equation, as the distance from the __, the rate light hits a(n)__.
Illuminated source increases; luminous source increases
Luminous source decreases; illuminated source decreases
Luminous source increases; illuminated source decreases
Illuminated source decreases; luminous source increases
65
Which of these bestdescribes the Standard Model?
protons, neutrons, electrons = thebuilding blocks of matter
matter and antimatter = buildingblocks of matter
Radaway and Stimpacks = buildingblocks of matter
quarks, leptons, force carriers =building blocks of matter
66
If you shout across a canyon & hear the echo 0.80 s later, how wide is the canyon? Air is 20°C
429
858
137
274
67
Where doesthe thumb point when using the 3rd right-had rule?
In the direction of thecurrent
In the direction of the strength of themagnetic field
In the direction of thepolarity
In the direction of the force
68
The kilowatt-hour is a unit of
Potential
Current
Power
Energy
69
Elementary particles like electrons or antineutrinos; appear to make up all matter
Lepton
Nucleon
Quark
Nuclide
70
Which of these is NOTsomething that is designed to have a specific resistance?
Object made of graphite
Wires that are long andthin
A semiconductor
Gatorade
71
Which was NOT acontributing factor to the Chernobyl disaster?
Chief Engineer notfollowing protocol
Russian engineersweren’t getting paid enough
Tests not completed ontime
Serious design flaws
72
Waves are 0.06 m long. Frequency is 4.8 oscillation/s. What is the period of the water waves?
0.21
0.17
4.8
0.29
