Question

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

Answer 1

Here are the correct answers to your questions based on the Big Bang Theory and related astronomical concepts:

Question 1: How does weak background radiation coming from every direction in the sky support the Big Bang Theory?

• It provides evidence of universe expansion.

Question 2: How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory?

• The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe expands.

Question 3: How is dark energy related to the theory of the Big Bang?

• It causes the expansion of the universe to accelerate.

Question 4: Which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?

• Its temperature is uniform.

Question 5: Blueshift is observed when

• a distant luminous object travels rapidly towards an observer.

Question 6: As evidence supporting the Big Bang Theory, what does the redshift of light from galaxies indicate?

• the universe is expanding.

Question 7: Which is a characteristic of dark matter?

• it has not been observed directly.

Question 8: Which statement is INCORRECT about Cosmic Microwave Background radiation?

• it appeared only a few years ago.

Question 9: Which statement is part of the Big Bang Theory?

• the universe began as a very high density singularity.

Question 10: Which statement is correct about nuclear FISSION?

• nuclear fission occurs in the nuclei of atoms.

Question 11: Which statement is TRUE about nuclear FUSION?

• Nuclear fusion occurs when two atoms slam together to form one, heavier atom.

Question 12: Which is evidence for the existence of dark energy?

• Supernovae that are moving away at an accelerating rate.

Question 13: Which characteristic is shared by both dark matter and baryonic matter?

• They both have gravity.

Question 14: Which statement below does NOT fit the model of the Big Bang and the subsequent changes in the universe?

• The galaxies are moving closer together as time progresses.

Question 15: What is the definition of dark energy?

• Energy that humans cannot observe directly.

Feel free to ask if you need further explanations or details about any of the questions or answers!