This question is about the expansion of the universe.

The observed wavelength of light coming from a distant galaxy is higher than when that light was emitted. 

State the name of this phenomenon.

The diagram below shows the speed of galaxies moving away from Earth.

Describe the relationship between the speed of galaxy moving away from Earth and the distance of the galaxy from Earth.

The red shift of galaxies is one piece of evidence for the big bang. 

Explain how the red shift of galaxies provides evidence in support of the big bang theory.

This question is about the origins of the universe.

State what is meant by the big bang.

State two pieces of evidence in support of the big bang.

Explain how CMBR provides evidence for the big bang theory.

This question is about the expansion of the universe. 

The diagram below shows light emitted from 4 distant galaxies compared to the same light here on earth (laboratory source).

Explain how the image above provides evidence for the expansion of the universe.

Which galaxy is the furthest away from Earth?

This question is about the origin of the universe. 

Which of the following is a piece of evidence for the big bang?

Explain what CMBR stands for and how it provides evidence for the big bang.

What causes the red shift of light from distant galaxies?

This question is about the light emitted from distant galaxies. 

Describe how light from distant galaxies provides evidence of the universe expanding.

Andromeda is a galaxy which is moving towards Earth. 

Explain how the light from Andromeda appears to astronomers on Earth.