1. How does weak background radiation coming from every direction in the sky support the Big Bang Theory?
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2 points
it provides evidence of universe contraction
it provides evidence of the universe's increasing mass
it provides evidence of the universe's decreasing mass
it provides evidence of universe expansion
2. How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory?
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2 points
The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe shrinks
The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe expands.
The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe shrinks.
The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe expands.
3. How is dark energy related to the theory of the Big Bang?
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2 points
It causes the spinning of galaxies.
It seeded the formation of galaxies and star clusters.
It causes the universe to expand.
It causes the expansion of the universe to accelerate.
4. Which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?
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2 points
Its mass is uniform.
Its temperature is uniform.
Its mass fluctuates greatly.
Its temperature fluctuates greatly.
5. Blueshift is observed when
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1 point
a luminous object travels alongside an observer
a distant luminous object travels rapidly towards an observer
a distant luminous object travels rapidly away from an observer
a luminous object is stationary compared to an observer
6. As evidence supporting the Big Bang Theory, what does the redshift of light from galaxies indicate?
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2 points
the universe is mainly hydrogen
the universe is 13.8 billion years old
the universe is expanding
the universe is cooling off
7. Which is a characteristic of dark matter?
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1 point
it does not interact with baryonic matter
it has not been observed directly.
it interacts with electromagnetic radiation.
humans can see it
8. Which statement is INCORRECT about Cosmic Microwave Background radiation?
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2 points
its temperature is uniform.
it consists of electromagnetic radiation that is a remnant of the Big Bang.
It appears uniformly across the universe.
it appeared only a few years ago
9. Which statement is part of the Big Bang Theory?
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2 points
the universe began as a very high density singularity
Small spiral galaxies become larger elliptical galaxies
Dark matter makes up the majority of matter in the galaxy.
The chemical makeup of the universe has changed dramatically
10. Which statement is correct about nuclear FISSION?
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1 point
Nuclear fission only occurs in stars.
Nuclear fission occurs when two atoms slam together to form one, heavier atom
nuclear fission occurs in the nuclei of atoms
nuclear fission is commonly fueled by iron
11. Which statement is TRUE about nuclear FUSION?
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1 point
Nuclear fusion only releases a small amount of energy.
Nuclear fusion occurs when two atoms slam together to form one, heavier atom
Nuclear fusion is used to provide electricity at nuclear power plants
Nuclear fusion is when atoms split apart
12. Which is evidence for the existence of dark energy?
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1 point
galaxies that are rotating at a constant rate
Pulsars that seem to be moving closer at an accelerating rate
Black holes that are expanding at a constant rate
Supernovae that are moving away at an accelerating rate
13. Which characteristic is shared by both dark matter and baryonic matter?
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1 point
They both have gravity
They both are capable of absorbing light
They both interact with each other
They both have been directly observed by scientists
14. Which statement below does NOT fit the model of the Big Bang and the subsequent changes in the universe?
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2 points
The universe was denser previously than it is now.
The universe was hotter previously than it is now.
The galaxies are moving closer together as time progresses.
The universe is continuing to expand, even after the Big Bang.
15. What the definition of dark energy?
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1 point
Energy that humans cannot observe directly
Energy that has a small effect on the universe
Energy characterized by black and dark gray colors
Energy that is only emitted by glowing nebulae.
1. it provides evidence of universe expansion
2. The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe expands.
3. It causes the expansion of the universe to accelerate.
4. Its temperature is uniform.
5. a distant luminous object travels rapidly towards an observer
6. the universe is expanding
7. it does not interact with baryonic matter
8. it appeared only a few years ago
9. the universe began as a very high density singularity
10. nuclear fission occurs in the nuclei of atoms
11. Nuclear fusion is used to provide electricity at nuclear power plants
12. Supernovae that are moving away at an accelerating rate
13. They both have gravity
14. The galaxies are moving closer together as time progresses.
15. Energy that humans cannot observe directly
1. The weak background radiation coming from every direction in the sky supports the Big Bang Theory because it provides evidence of universe expansion.
2. The change in the temperature of the universe provides evidence for universe expansion that supports the Big Bang Theory because the universe is cooling, which is expected to happen as the universe expands.
3. Dark energy is related to the theory of the Big Bang because it causes the expansion of the universe to accelerate.
4. The evidence that supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang is that its temperature is uniform.
5. Blueshift is observed when a distant luminous object travels rapidly towards an observer.
6. The redshift of light from galaxies indicates that the universe is expanding, which is evidence supporting the Big Bang Theory.
7. A characteristic of dark matter is that it does not interact with baryonic matter.
8. The statement that is incorrect about Cosmic Microwave Background radiation is that it appeared only a few years ago.
9. Part of the Big Bang Theory is that the universe began as a very high density singularity.
10. Nuclear fission occurs when two atoms slam together to form one, heavier atom.
11. Nuclear fusion is used to provide electricity at nuclear power plants.
12. Evidence for the existence of dark energy is that supernovae are moving away at an accelerating rate.
13. One characteristic shared by both dark matter and baryonic matter is that they both have gravity.
14. The statement that does not fit the model of the Big Bang and the subsequent changes in the universe is that the galaxies are moving closer together as time progresses. Instead, the evidence suggests that the universe is continuing to expand.
15. The definition of dark energy is energy that humans cannot observe directly.