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WorksheetsFinal Exam Review
Total questions: 51
Worksheet time: 1hrs 1mins
Name
Class
Date
1.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
solar 4 half-lives
2.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
3.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
4.
Valence electrons are:
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
5.
What is the definition of isotope?
a)
atoms of an element with different numbers of neutrons.
b)
materials break down over time at a very consistent rate
6.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
7.
How are ionic bonds formed?
a)
When atoms share an electron
b)
When opposite charged atoms attract
c)
When one atom takes a proton
d)
When one atom takes a neutron
8.
How many valence electrons does Carbon have?
a)
4
b)
12
c)
6
d)
14
9.
What is the chemical formula for this picture?
a)
CF4
b)
F4C
c)
C4F
10.
What does this picture represent?
a)
electron dot diagram
b)
chemical formula
c)
chemical equation
11.
What type of bond is this picture?
a)
covalent
b)
ionic
c)
metallic
12.
How many HCl molecules do you need to balance this equation?
Mg + __HCl ---> MgCl2 + H2
Mg + __HCl ---> MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
13.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
14.
The definition of momentum is
a)
Mass in Motion
b)
The size of an object
c)
The velocity of an object
d)
A comparison between two objects
15.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
16.
When a pendulum swings, at which point is kinetic energy highest:
a)
1
b)
2
c)
3
d)
4
17.
A 60 kg Ewok is travelling at a constant speed of 7 m/s. What is its kinetic energy in J?
a)
1470 J
b)
2100 J
c)
1.47 J
d)
21 J
18.
The transmission of energy by two objects touching is called
a)
conduction
b)
convection
c)
contraction
d)
radiation
19.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed
b)
Energy cannot be created or destroyed, it can only be transformed
c)
Energy can't be created, destroyed or transformed
20.
A 20 kg bike accelerates at 10 m/s2. what was the force
a)
25
b)
200 N
c)
20 N
d)
10 N
21.
Why does the moon have less gravity than the Earth?
a)
It is far away from the Earth
b)
It is farther away from the Sun
c)
The moon is made of cheese
d)
It has less mass
22.
A 5kg rock rests at a height of 12m. Calculate its potential energy.
a)
1176J
b)
23.52J
c)
6.12J
d)
588J
23.
If it takes 300J to raise a rock vertically 5.0 meters, what is the mass of the rock?
a)
1500kg
b)
153.1kg
c)
60kg
d)
6.12kg
24.
Leo has a mass of 25kg. The moons mass is 7.34x1022. If the moon is 3.8x108 meters away from the center of the Earth. What is the gravitational force between Leo and the moon?
a)
8.48x 10^-4N
b)
64747.70N
c)
6.97x10^32N
d)
5N
25.
Which of the following causes Earth's tectonic plates to move?
a)
Energy from the Sun
b)
Magnetic Pole Reversal
c)
Convection currents in the mantle
d)
Faults in Mountain Ranges
26.
What type of plate boundary is this?
a)
Plate
b)
Divergent
c)
Convergent
d)
Transform
27.
The type of plate boundary where two plates come together is a .....
a)
Convergent Boundary
b)
Divergent Boundary
c)
Transform Boundary
d)
Plate Boundary
28.
A divergent boundary occurs when plates ....
a)
Pull apart
b)
Come together
c)
Slide past each other
d)
subducting
29.
Which of the following is the name of the ancient supercontinent formed 28 Million Years ago.
a)
Pangaea
b)
Gondwanda
c)
Laurasia
d)
Neverland
30.
Mountains are created when....
a)
Two continental plates collide
b)
Two oceanic plates pull apart
c)
An Oceanic plate subducts under a Continental Plate
d)
Two continental plates pull apart
31.
How is it possible for new crust to be formed without increasing the surface area of the Earth?
a)
Crust is destroyed at the same time it is created
b)
New crust is underwater where it sinks
c)
New crust breaks more easily than old crust
32.
Where would the oldest rock be found?
a)
L
b)
M
c)
N
d)
O
33.
A fault is formed by the movement of a __________ plate boundary
a)
Transform
b)
Convergent
c)
Divergent
34.
What does this diagram illustrate?
a)
Ozone Layer
b)
The Greenhouse Effect
c)
Ultraviolet Radiation
d)
Layers of the atmosphere
35.
Do we need greenhouse gases on Earth?
a)
Yes - they keep the Earth warm
b)
Yes - they keep all the gases on our planet
c)
No - they only cause terrible climate change
d)
No - they only block some of the Sun's rays
36.
How does fossil evidence support Wegener's hypothesis of continental drift?
a)
Similar fossils are found along continental margins that appear to join together.
b)
Fossils are found in areas where the present-day climate could not have supported the organisms that made the fossils.
c)
Similar fossils of giant, land-dwelling dinosaurs are found on continents separated by oceans.
d)
all of the above
37.
If a volcano's magma is high in silicia, the volcano will probably
a)
erupt quietly
b)
remain dormant
c)
erupt explosively
d)
produce dark color lava
38.
What are the most explosive types of volcanoes?
a)
Shield
b)
Composite
c)
Cinder Cone
39.
The process by which metamorphic rocks are formed...
a)
heat and pressure
b)
compaction and cementation
c)
melting and cooling
40.
The process by which igneous rocks are formed...
a)
heat and pressure
b)
melting and cooling
c)
compaction and cementation
41.
This is part of the....
a)
Geosphere
b)
Atmosphere
c)
Hydrosphere
d)
Cryosphere
42.
This layer of Earth is solid Iron and Nickel
a)
Outer Core
b)
Mantle
c)
Inner Core
d)
Crust
43.
What 3 stages do all stars begin with?
a)
Nebula, Protostar, and Main Sequence
b)
Nebula, Main Sequence, and Supernova
c)
Protostar, Main Sequence, and Blackhole
d)
Main Sequence, Red Giant, and White Dwarf
44.
If a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
45.
If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
46.
Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.
a)
It is not moving
b)
It is moving away from Earth (Redshift)
c)
It is moving towards Earth (Blueshift)
d)
It is moving towards Earth (Redshift)
47.
Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.
a)
It is not moving relative to Earth
b)
It is moving away from Earth (Redshift)
c)
It is moving towards Earth (Blueshift)
d)
It is moving towards Earth (Redshift)
48.
Which wave has a greater frequency?
a)
A
b)
B
49.
How does the Doppler effect provide evidence for the Big Bang Theory?
a)
It shows that galaxies make lots of sound waves.
b)
It shows that galaxies are blue shifted and moving toward us.
c)
It shows that galaxies are redshifted and moving away from us.
d)
It is not evidence for the Big Bang Theory.
50.
What best describes the doppler effect?
a)
An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
b)
When sound changes pitch
c)
When light changes color
d)
An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
51.
The Nebular Theory is:
a)
A theory on how the Milky Way galaxy was formed
b)
A theory on how the universe was formed
c)
A theory on how the solar system will be destroyed
d)
A theory on how the solar system was formed
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