The Expanding Universe

Question 1

Which statements describe the principles of the big bang theory? Select two options.The universe is continuing to expand.The universe stretched from a single point.The universe resulted from the collision of light and dark energy.The universe expanded, but its size is now remaining constant.The universe is slowly collapsing and getting smaller.

Revolt · Accepted Answer

A: The universe is continuing to expand.; B: The universe stretched from a single point.

Question 2

Hubble measured the velocity of the movement of galaxies by using . Hubble’s law states that galaxies located farthest from the center of the universe than those closest to the center.

Revolt · Accepted Answer

A: the Doppler effect

Question 3

After our solar system began to form, dust and gas combined into small bodies that formed the planets. What are these small bodies called?

Revolt · Accepted Answer

C: planetesimals

Question 4

Use the drop-down menus to identify the order of these images for the formation of our solar system.

Revolt · Accepted Answer

Selection 1: 2; Selection 2: 1; Selection 3: 3

Question 5

Question 5

Revolt · Accepted Answer

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Question 6

Why is Jupiter so much larger than Earth? Check all that apply.

Revolt · Accepted Answer

A: Inner planets were created at higher velocities.; C: Outer planets attracted helium, hydrogen, and other gasses.; E: Gases escaped from inner planets and not from outer ones.

Question 7

Which statements explain current theories about dark energy and dark matter? Check all that apply.Space that appears empty actually contains dark energy and dark matter.Dark matter does not emit electromagnetic radiation.Scientists believe dark energy will cause the universe to collapse inward to a single point.Scientists theorize that dark energy is causing the expansion of the universe to accelerate.Dark matter includes all of the dust, ice, and debris that scientists observe in black holes.

Revolt · Accepted Answer

A: Space that appears empty actually contains dark energy and dark matter.; B: Dark matter does not emit electromagnetic radiation.; D: Scientists theorize that dark energy is causing the expansion of the universe to accelerate.

Question 8

Question 8

Revolt · Accepted Answer

A

Question 9

Question 9

Revolt · Accepted Answer

B,D,E

Question 10

are moving more slowly ✔ are moving fasterX contain more dark matter contain less dark matter

Revolt · Accepted Answer

C: contain more dark matter

The Expanding Universe Answers

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