UNIVERSE and THE SOLAR SYSTEM

Question 1

observed that all galaxies were
moving away from one another

Answer 1

Edwin Hubble

Question 2

Calculating back from the galaxies, we get starting point in time of _____ bya

Answer 2

13.7

Question 3

MAIN OBJECTS IN THE UNIVERSE (3)

Answer 3

• stars
• stellar systems
• galaxy

Question 4

massive self-luminous celestial body of gas that shines by radiation derived from its internal energy

Answer 4

stars

Question 5

a star and other objects such as planets
and/or other stars and other materials that orbit it.

Answer 5

solar systems

Question 6

any of the systems of stars and interstellar matter that make up the universe

Answer 6

galaxy

Question 7

3 types of galaxies:

Answer 7

• spiral galaxy
• elliptical galaxy
• irregular galaxy

Question 8

Compact group of galaxies in constellation pegasus

Answer 8

Stephans Quintet

Question 9

Unis, Versus, Universum, Universus - origin of the word ______?

Answer 9

Universe

Question 10

greek word of cosmos

Answer 10

kosmos

Question 11

characteristics of the universe

Answer 11

Harmonious, Orderly, Systematic

Question 12

this theory of Einstein helped us to understand gravity

Answer 12

Theory of Relativity

Question 13

This is a hot, infinitely dense ball that exploded, resulting in the formation of our universe

Answer 13

singularity

Question 14

The most widely accepted explanation on how the universe began.

Answer 14

big bang theory

Question 15

the 2 eras/major events in the big bang theory

Answer 15

Radiation and Matter era

Question 16

Epochs under Radiation Era (8)

Answer 16

• Planck Epoch
• Grand Unification Epoch
• Inflationary Epoch
• Electroweak Epoch
• Quarks Epoch
• Hadron Epoch
• Lepton Epoch
• Nuclear Epoch

Question 17

No matter, just energy and the 4 super forces of nature were complete. However, this era ended when gravity split away.

Answer 17

Planck Epoch

Question 18

the name for the 3 remaining super forces. This epoch ended when strong nuclear split away from the superforce

Answer 18

Grand Unification Epoch

Question 19

the universe expanded exponentially fast during this time. From the size of an atom to a size of a grapefruit. Also, the universe churned with Electrons, Quarks, and other particles. the

Answer 19

Inflationary Epoch

Question 20

the electromagnetic force separated from the weak nuclear force

Answer 20

Electroweak Epoch