Chapter 31.3-31.4

Question 1

What is a large group of stars, dust, and gas held together by gravity?

Answer 1

Galaxy

Question 2

What is the name of out solar system?

Answer 2

Milky Way

Question 3

What is a group of galaxies called?

Answer 3

Local Group

Question 4

What is the study of how the universe began, how it continues to change, and what it is made of called?

Answer 4

Cosmology

Question 5

What was it called when all matter and energy in the universe were compressed into one single point?

Answer 5

Big Bang Theory

Question 6

What was the residual microwave radiation emitted when the universe was very young called?

Answer 6

Cosmic background information

Question 7

What is an invisible form of matter that does not emit any detectable electromagnetic energy of its own called?

Answer 7

Dark Matter

Question 8

What is an invisible form of energy that creates a repulsive force causing the universe to expand at a faster rate called?

Answer 8

Dark Energy

Question 9

How long ago did the big bang occur?

Answer 9

13.7 billion years ago

Question 10

What is the universe made up of?

Answer 10

Regular matter and Dark matter