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NVLA.Semester 1 Exam Review
NVLA.Semester 1 Exam Review
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1
The most common chemical element in most stars is
oxygen
nitrogen
helium
hydrogen
2
The geological processes that shape Earth’s features today ____.
became important only several hundred years ago
are much different than thousands of years ago
are basically the same as they were in the geologic past
did not operate in the distant past
3
Earth is closest to the sun at a point called ____.
apogee
precession
aphelion
perihelion
4
What is the minimum number of seismic stations that is needed to determine the location of an earthquake’s epicenter?
2
1
3
4
5
Which of the following is not a main part of the star life cycle?
Star Death
Star Twinkle
Star Maturity
Star Birth
6
An earthquake’s epicenter is ____.
the place on the surface directly above the focus
a spot halfway between the focus and the surface
the spot below the focus
the spot below the focus
7
The farther away a galaxy is from us, the ___it is moving away from us.
its not moving away from us
slower
could be both faster or slower
faster
8
Assume you began with 10 g of a parent isotope. How many grams of parent isotope will be present after 2 half-lives?
2.5
0.5
1.25
.063
9
Dark areas on the sun with cooler temperatures then the surrounding areas are called?
Sun Spots
Pulsars
Star Flares
Solar Flares
10
What is the shape of a planet’s orbit?
elliptical
circular
irregular
parabolic
11
Which of the following causes earthquakes?
frictional heating
elastic rebound
release of heat
Richter scale
12
Stars of which color have the coolest surface temperature?
red
blue
grey
orange
13
The measure of a star’s brightness is called its ____.
color index
magnitude
intensity
parallax
14
The figure shows that plate movements can be caused by
mantle conveyor currents
magma convection currents
mantle convection currents
magma conveyer currents
15
Massive stars terminate in a brilliant explosion called a ____.
red giant
neutron star
protostar
supernova
16
Why do earthquakes often cause damaging fires?
Tsunamis from earthquakes generate enough heat to start fires.
Earthquake vibrations can break gas lines, water lines, and power lines.
Magma from deep underground escapes through faults.
Lightning strikes are common during earthquakes.
17
Which one of the following statements is true about P waves?
They travel only through solids.
They cannot be recorded on a seismograph.
They travel faster than S waves.
They are the most destructive type of seismic wave.
18
If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?
14
6
8
20
19
The mass number of an atom is obtained by totaling the number of ____.
neutrons and isotopes
electrons and neutrons
electrons and protons
protons and neutrons
20
Which are the hottest stars on the H-R Diagram?
White Stars
Yellow Stars
Blue Stars
Red Stars
21
Which of the following is used in an attempt to make short-range predictions of when earthquakes will occur?
study of historical records
height of ocean waves after earthquakes
changes in the color of rocks near faults
strain in rocks near faults
22
What is the determining factor that separates the Earth's layers?
Density
Temperature
All of these
Depth
23
Greater red shifts in the spectra of galaxies indicate
higher temperatures
faster speeds
lower temperatures
slower speeds
24
At divergent plate boundaries in the ocean, magma rises and melts because of ____.
a decrease in pressure
intrusive plutons at the boundary
higher temperatures at the surface
increased silica content of magma
25
At divergent plate boundaries in the ocean, magma rises and melts because of ____.
higher temperatures at the surface
intrusive plutons at the boundary
increased silica content of magma
a decrease in pressure
26
Which force is most responsible for the formation of a star?
how far away the star is
how hot the star is
how old the star is
how big the star is
27
Which of the following results when divergence occurs between two oceanic plates?
a subduction zone
an ocean trench
a volcanic island arc
seafloor spreading
28
Common type(s) of electromagnetic waves include
infrared
radio
all of these
visible light
29
The turning or spinning of a body on its axis is known as ____.
precession
revolution
rotation
apogee
30
What is the atomic number of an atom?
The number of neutrons
The number of protons
The number of electrons
The number of protons and neutrons combined
31
What hypothesis states that the continents were once joined to form a single supercontinent?
paleomagnetism
seafloor spreading
continental drift
plate tectonics
32
What does “2” mean in the formula for water H2O?
two atoms of hydrogen
two molecules of water
two molecules of hydrogen
two atoms of oxygen
33
When stars are moving towards us the appear to be more of what color?
Yellow
Blue
Red
Green
34
A seismogram shows that P waves travel ____.
more slowly than S waves
at the same speed as surface waves
at the same speed as S waves
faster than S waves
35
Magma forms when solid rock in the crust and upper mantle ____.
vaporizes
cools
melts
crystallizes
36
The reason the planets revolve around the sun is
they are attracted to the warmth.
the planets are held in an orbit around the sun because of its radiation
its size is so large that its gravity holds them in place
its temperature creates a force that holds them
37
What layers of Earth make up the lithosphere?
the upper and lower mantle
the continental crust and oceanic crust
the crust and lower mantle
the crust and upper mantle
38
When an earthquake occurs, energy radiates in all directions from its source, which is called the ____.
focus
fault
seismic center
epicenter
39
What is the atomic number of an element?
the number of protons and neutrons
the number of valence electrons
the number of protons
the number of neutrons
40
A faint glow of light that fills the universe, falling on Earth from every direction with uniform intensity is called?
Cosmic Microwave Background Radiation
All of these
Spectral Lines
Star Dust
41
Where are electrons found in atoms?
in the electron zone
in the electron cloud
in the electron sphere
in the atomic ring cycle
42
The dating process that places geologic events in proper sequence is referred to as a ____.
radiometric dating
numerical dating
temporary dating
relative age dating
43
The source of the sun’s energy is ____.
nuclear fission
nuclear fusion
chemical burning
photosynthesis
44
Changes in the color of starlight that measures the speeds of galaxies and track the expansion of the universe is what?
Doppler Shift
Red Shift
Star Shift
Galaxy Shift
45
What is the cause of the plate tectonic activity?
Convection of liquid metal in the core
Solar flares and gravity
Ocean currents
all of these
46
The brightness of a star, as seen from the Earth is called its
apparent brightness
absolute brightness
light
twinkle
47
What causes Earth's magnetic field?
Convection of iron in the core
Electric current in wires between the poles
all of these
It happens naturally because of Earth's position in the solar system
48
Earth’s inner core is solid because of ____.
the composition of rock
it's huge diamater
immense pressure
immense pressure
49
Which of the following are reliable ways to date the age of the Earth?
Deep Sea Trenches
Meteorites
Old Rocks made on Earth
Mountain Ranges
50
what element is used to date fossils
iron
gold
carbon
uranium
51
Where would you find super giants on the H-R diagram?
Top Left
Bottom Right
Top Right
Bottom Left
52
where is our Sun on a H-R diagram
in the middle, on the main sequence
bottom left
bottom left
top right
53
Which of the following are reliable ways to date the age of the Earth?
Meteorites
Mountain Ranges
Old Rocks made on Earth
Deep-Sea Trenches
54
Plate tectonics can also be the direct cause of forming
oceans
lakes
mountains
rivers
55
The two characterists of stars shown on an H-R diragram are absolute brightness and
distance from Earth
size
surface temperature
color
56
What information does an H-R diagram give you?
size
luminosity, color, and temperature
temperature and luminosity
temperature, luminosity, and spectral class
57
Every atom has a specific and unique makeup of the three particles.
False
True
58
When stars are moving towards us the appear to be more of what color?
Green
Red
Blue
Yellow
59
The movement of hotter matter rising and cooler matter sinking is called?
Plate Tectonics
Viscous
None of these
Convection
60
Stars of which color have the highest surface temperature?
blue
grey
orange
red
61
The central region of an atom is called the ____.
nucleus
neutron
electron
proton
62
Overall, which seismic waves are the most destructive?
compression waves
P waves
S waves
surface waves
63
The main factor that affects the evolution of a star is its
size
parallax
mass
color
64
What instrument records earthquake waves?
Richter scale
seismograph
seismogram
barometer
65
The smallest particle of an element that still retains all the element’s properties is a(n) ____.
mineral
isotope
atom
compound
66
What is important about Hubble's discovery that there is a red shift in the spectra of galaxies
it suggests the existence of black holes
it suggests that the universe is contracting
it suggests that the universe is expanding
it proves the big bang theory
67
What is the currently accepted age of Earth?
about 10 billion years old
about 4.6 million years old
about 4.6 billion years old
about 5.6 billion years old
68
The distance between a seismic station and the earthquake epicenter is determined from the ____.
calculation of the earthquake magnitude
intensity of the earthquake
measurement of the amplitude of the surface wave
arrival times of P and S waves
69
Which of the following areas would most likely be the safest during a major earthquake?
area with structures built on a landfill
area with loosely consolidated soil
area with steep slopes of unconsolidated sediments
area with granite bedrock
70
Most of the information about Earth’s interior was obtained by studying ____.
rocks in deep wells
earthquake waves
rocks of the ocean crust
meteorites
71
Which of the following are reliable ways to date the age of the Earth?
Old Rocks made on Earth
Deep Sea Trenches
Meteorites
Mountain Ranges
72
The Sun's energy comes from _____________________.
nuclear fission
nuclear fallout
electricity
nuclear fusion
73
Which are the coolest stars on the H-R Diagram?
Red Stars
Blue Stars
Yellow Stars
White Stars
74
What is the cause of the plate tectonic activity?
all of these
Ocean currents
Convection of liquid metal in the core
Solar flares and gravity
75
Evidence that Earth’s core has a high iron content comes from ____.
deep dsea drilling
deep wells
the study of earthquake waves
meteorites
76
When did the Big Bang occur?
about 2.3 billion years ago
about 20.1 billion years ago
about 10.4 billion years ago
about 13.7 billion years ago
77
What movement of Earth is responsible for night and day?
revolution
precession
perigee
rotation
78
There are four parts to an atom
True
False
79
The amount of shaking produced by an earthquake at a given location is called the ____.
epicenter
focus
magnitude
intensity
80
During the formation of the universe some 14 billion years ago every atom in the universe was formed
False
True
81
According to the ____________________ theory, the universe formed in an instant, billions of years ago, in an explosion.
Silent Bang
Snap Bang
Evolution
Big Bang
82
As a star goes through this cycle their _____ changes.
all of these
luminosity
brightness
temperature
83
Earthquakes are usually associated with ____.
the east coast of North America
large cities
violent weather
faults
84
Earth’s core is made of an alloy of ____.
iron and zinc
copper and iron
iron and nickel
zinc and magnesium
85
This method of dating events and structures (such as fossils or rocks) was developed first and places things in order
Speed Dating
Absolute Dating
Fossil Formation
Relative Dating
86
Which of the following affects the amount of destruction caused by earthquake vibrations?
the intensity and duration of the vibrations
all of the above
the nature of the material on which structures are built
the design of structures
87
A fault is ____.
another name for an earthquake
a place on Earth where earthquakes cannot occur
the place on Earth’s surface where structures move during an earthquake
a fracture in the Earth where movement has occurred
88
Plate tectonics are.....
A scientific theory of the plates making up the Earth's lithosphere
A grand theory of the plates making up the whole Earth
Plates that are sold at Walmart on sale
A special kind of plate called tectonics that we use to eat on.
89
Which of the following does NOT affect the apparent brightness of a star?
how hot the star is
how far away the star is
how big the star is
how old the star is
90
Magnetic reversals ____.
have never occurred during geologic time
confirmed the existence of subduction zones
provide strong evidence for seafloor spreading
cause the movements of tectonic plates
91
What are the building blocks of minerals?
isotopes
electrons
elements
rocks
92
Which of the following affects the amount of destruction caused by earthquake vibrations?
the nature of the material on which structures are built
the nature of the material on which structures are built
the design of structures
the intensity and duration of the vibrations
93
Which seismic waves compress and expand rocks in the direction the waves travel?
S waves
love waves
P waves
Surface waves
94
Radiometric dating is possible because the rates of decay of radioactive isotopes ____.
vary
change from place to place
are constant
change over time
95
Another name for the interstellar matter that will eventually form a star is ____.
supernova
nebula
black hole
red giant
96
Light is electromagnetic radiation of any wavelength such as
ultraviolet light
infrared light
visible light
all of these
97
All stars, regardless of size, eventually ____.
turn into black dwarfs
run out of fuel and collapse
become black holes
explode
98
Light cannot escape the intense gravitational pull of a ____.
black dwarf
black hole
red giant
main-sequence star
99
Why does earth have plate tectonics and continents
plate tectonics help hold earth together
helps keep earth stable
without it earth would not be earth
continents make what we call earth