Topic 1 Non Religious Theories About The Origin Of The Universe

Question 1

Name two non religious theories about the origin of the universe

Answer 1

1. Steady state theory

2. The Big Bang theory

Question 2

What is the steady state theory?

Answer 2

1. There is no beginning or end to the universe

2. This is because the expanding universe remains unchanged over time due to the continuous creation of matter

Question 3

What is the Big Bang theory?

Answer 3

1. 14 billion years ago universe began as point of infinite density
2. Expanding rapidly, subatomic particles formed
3. Eventually stars + galaxies + planets were formed

Question 4

Why is red shift evidence for Big Bang?

Answer 4

1. RED SHIFT of light from far away galaxies - something must have initiated that expansion
2. If all galaxies are moving away from each other uniformly then they must have begun at same point

Question 5

How is cosmic background radiation evidence for Big Bang?

Answer 5

1. Radiation with the right frequency to be left over from Big Bang

Question 6

How is the hydrogen helium ratio evidence for the Big Bang?

Answer 6

1. Abundance of helium in the universe too much to be just from fusion, must have been from Big Bang