Red Shift

Question 1

When there is a change in frequency and wavelength, what is the name given to describe this?

Answer 1

The Doppler effect.

Question 2

What does the Doppler effect happen with?

Answer 2

Any wave source that moves away or towards an observer.

Question 3

If the object is moving towards an observer?

Answer 3

The waves are shifted to a higher frequency and shorter wavelength.

Question 4

If the object is moving away from an observer?

Answer 4

The waves have a lower frequency and longer wavelengths.

Question 5

What does the Doppler effect happen with?

Answer 5

Light and sound.

Question 6

If light from different galaxies is shifted towards the red end of the spectroscope what does this mean?

Answer 6

If means that they are moving away from us and that space is expanding.

Question 7

What does CMBR stand for?

Answer 7

Cosmic Microwave Background Radiation.

Question 8

What is currently the only model that explains the existence of CMBR?

Answer 8

The Big Bang Theory.

Question 9

What do scientists believe about CMBR?

Answer 9

That the continuous microwave background radiation is the remains of the heat energy from the Big Bang, spread thinly across the whole universe.

Question 10

What do scientists believe about CMBR?

Answer 10

That the continuous microwave background radiation is the remains of the heat energy from the Big Bang, spread thinly across the whole universe.