Question

Which of these items provide evidence supporting the Big Bang theory? Select the two correct items.(1 point) Responses cosmic background radiation cosmic background radiation composition of matter in the universe composition of matter in the universe rate of star formation rate of star formation sizes and shapes of distant galaxies

Answer 1

Which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?(1 point) Responses Its mass fluctuates greatly. Its mass fluctuates greatly. Its temperature is uniform. Its temperature is uniform. Its mass is uniform. Its mass is uniform. Its temperature fluctuates greatly.

Answer 2

A scientist, using a telescope, sees arcs of light around a galaxy. In 3–5 sentences, explain the cause of the arcs of light.

Answer 3

How is dark energy related to the theory of the Big Bang?(1 point) Responses It causes the expansion of the universe to accelerate. It causes the expansion of the universe to accelerate. 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.

Answer 4

Which represents a correct match between ideas related to the formation of the universe? Select the two correct answers.(1 point) Responses structures forming in the early universe — dark matter structures forming in the early universe — dark matter greatest percent of mass of universe — dark matter greatest percent of mass of universe — dark matter accelerating expansion — dark energy accelerating expansion — dark energy glowing nebulae — dark energy glowing nebulae — dark energy

Answer 5

Which statements about nuclear fusion are false? Select the two correct answers.(1 point) Responses Nuclear fusion takes place in the cores of stars. Nuclear fusion takes place in the cores of stars. Nuclear fusion is used to generate electricity at nuclear power plants. Nuclear fusion is used to generate electricity at nuclear power plants. Nuclear fusion releases large amounts of energy. Nuclear fusion releases large amounts of energy. The fuel for nuclear fusion is often uranium.

Answer 6

Which of the following statements provide evidence to support the big bang theory? Select the two correct answers.(1 point) Responses The universe began as a very high density singularity. The universe began as a very high density singularity. The ratios of hydrogen and helium in the universe match those of the early universe. The ratios of hydrogen and helium in the universe match those of the early universe. Dark matter makes up the majority of matter in the galaxy. Dark matter makes up the majority of matter in the galaxy. Small spiral galaxies become larger elliptical galaxies when they collide.

Answer 7

Which statements describe ways that nuclear fission is different than nuclear fusion? Select the two correct answers.(1 point) Responses Nuclear fission is used to produce electricity at nuclear power plants. Nuclear fission is used to produce electricity at nuclear power plants. Nuclear fission involves one large atom splitting into two smaller atoms. Nuclear fission involves one large atom splitting into two smaller atoms. Nuclear fission takes place in the nucleus of an atom. Nuclear fission takes place in the nucleus of an atom. Nuclear fission releases a huge amount of energy.

Answer 8

Relate dark matter to the development of the universe after the Big Bang. In 3-5 sentences, speculate on how the development of the universe would have been different if there had been no dark matter. In your answer, use the term structures.

Answer 9

How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory?(1 point) Responses The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates. The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates. The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos disperses. The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos disperses. The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates. The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates. The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos disperses.

Answer 10

How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory?(1 point) Responses
The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates.

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

The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos accumulates.

The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos disperses.

Answer 11

Which statements about nuclear fusion are false? Select the two correct answers.(1 point) Responses Nuclear fusion is used to generate electricity at nuclear power plants. Nuclear fusion is used to generate electricity at nuclear power plants. Nuclear fusion takes place in the cores of stars. Nuclear fusion takes place in the cores of stars. Nuclear fusion releases large amounts of energy. Nuclear fusion releases large amounts of energy. The fuel for nuclear fusion is often uranium. The fuel for nuclear fusion is often uranium.

Answer 12

How does weak background radiation coming from every direction in the sky support the Big Bang Theory?(1 point) Responses It provides evidence of the universe's increasing mass. It provides evidence of the universe's increasing mass. It provides evidence of universe expansion. It provides evidence of universe expansion. It provides evidence of universe contraction. It provides evidence of universe contraction. It provides evidence of the universe's decreasing mass.