Origin of the Universe- BBT Evidence

Multiple Choice

The distance between waves is called

• wavelength

• frequency

• amplitude

• volume

Multiple Choice

The number of waves that pass a given point in a certain amount of time

• wavelength

• frequency

• amplitute

• volume

Multiple Choice

The Big Bang Theory states that the universe is

• expaning

• contracting

• not changing in size

Multiple Choice

When objects move towards you, the wavelength....

• Increases (gets longer)

• Decreases (gets shorter)

Multiple Choice

When objects move away from you, the wavelength....

• Increases (gets longer)

• Decreases (gets shorter)

Hotspot

What is the composition of the unknown spectra?

Multiple Choice

This star contains sodium. The lines don't line up because...

• The star is red-shifted and moving away.

• The star is red-shifted and moving towards.

• The star is blue-shifted and moving away.

• The star is blue-shifted and moving towards.

Multiple Choice

Use the image to identify the motion of the object relative to Earth.  Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.

• It is not moving
• It is moving away from Earth (Redshift)
• It is moving towards Earth (Blueshift)
• It is moving towards Earth (Redshift)

Multiple Choice

How did Hubble use redshift to support the Big Bang theory?

• He showed galaxies are moving apart as space expands.

• He proved stars change color over time.

• He discovered the universe is shrinking.

• He found that galaxies are stationary.

Multiple Choice

Which of the following is considered the second major piece of evidence supporting the Big Bang theory?

• Redshift of distant galaxies

• Cosmic microwave background radiation

• Abundance of hydrogen and helium

• Presence of black holes

Multiple Choice

The early universe was extremely ________ & ________.

• Hot/Damp

• Dense/Hot

• Dense/Cold

• Hot/Bright

Multiple Choice

According to the Big Bang Theory, which graph best represents the relationship between time and the size of the universe?

• A

• B

• C

• D