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