Question 1

What is Redshift?

Accepted Answer

When light stretches

Question 2

When the universe exploded into existence there was a load "Bang".

Accepted Answer

false

Question 3

Before the universe stared there was no time, space, or matter.

Accepted Answer

true

Question 4

When did time begin?

Accepted Answer

13.7 billion years ago

Question 5

After 0.01 seconds it was hot enough to produce protons and neutrons.

Accepted Answer

false It was no longer hot enough to produce protons or neutrons only electrons.

Question 6

After several thousand years how much of the universe was hydrogen?

Accepted Answer

70% - it was 30% helium

Question 7

What is the Big Bang Theory? The universe began as a _,_,_, and _ in every direction

Accepted Answer

hot, tiny, dense, expanded

Question 8

List the 3 pillars of the Big Bang Theory.

Accepted Answer

Redshift, cosmic background radiation, elemental abundances

Question 9

What is cosmic radiation background?

Accepted Answer

lefterover photons from the big bang

Question 10

After 3 minutes the universe was too _ for fusion

Accepted Answer

Cold

Question 11

What is the structure of the universe

Accepted Answer

Flat

Question 12

Acceleration is attributed to...

Accepted Answer

Dark Energy

Question 13

The universe is roughly 10% atoms and visible matter.

Accepted Answer

false The universe is roughly 4% atoms and visible matter.

Intro to Chemisty - Physical Science Arrowhead Park High

2) When the universe exploded into existence there was a load "Bang".