ย 
LOADING FULL SCREEN
NEXT TOPIC โ†’

The Big Bang theory for SQA National 5 Physics

The Big Bang theory

This page covers the following topics:

1. The Big Bang model

The Big Bang model states that billions of years ago, the whole Universe was a tiny, dense region of extremely high temperatures. The theory states that the whole Universe as we know it today expanded from that small region. The red-shifted light received from distant galaxies provides evidence for this model, as it suggests that the Universe is currently expanding. Cosmic Microwave background radiation (CMBR) has been detected coming from all directions in space and has a very low temperature. CMBR is said to be the remains of the energy procuded in the Big Bang and is spread thinly across the Universe, thus providing more evidence for this model.

The Big Bang model

1

How does redshift provide evidence for the Big Bang model?

The red-shifted light received from distant galaxies provides evidence for this model, as it suggests that the Universe is currently expanding.

How does redshift provide evidence for the Big Bang model?

2

Describe the Big Bang model.

The Big Bang model states that billions of years ago, the whole Universe was a tiny, dense region of extremely high temperatures. The theory states that the whole Universe as we know it today expanded from that small region.

Describe the Big Bang model.

3

What does the Big Bang model state about how the Universe started?

The Big Bang model states that billions of years ago, the whole Universe was a tiny, dense region of extremely high temperatures.

What does the Big Bang model state about how the Universe started?

4

State one piece of evidence for the Big Bang model.

Red-shifted light from distant galaxies/CMBR

State one piece of evidence for the Big Bang model.

5

State what is meant by CMBR.

Cosmic Microwave background radiation.

State what is meant by CMBR.

End of page

ย