Astronomy Mini Quiz B1

The vast majority of galaxies in our universe are moving away from us.  We know this because we observe __________ in the galaxies absorption spectra.

• Redshift
• Blueshift
• Turbulance
• Superposition

Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

A red shift in the observed light from very distant galaxies suggests that the universe is

• fixed and stationary  
• contracting continuously
• moving randomly
• constantly expanding

All of the evidence that scientists collect suggest that the Big Bang occurred approximately how long ago?

• 4.6 billion years ago

• 13.8 billion years ago

• 14.5 billion years ago

• 13.5 billion years ago

The majority of matter in the universe is made of which two elements that formed shortly after the Big Bang?

• Oxygen and Helium
• Nitrogen and Carbon
• Hydrogen and Helium
• Lithium and Oxygen

• Trough
• Crest
• Amplitude
• Wavelength

• Amplitude
• Crest
• Trough
• Wavelength

Which wave in the diagram has the greatest wavelength?

• 1
• 2
• 3
• 4

If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...

• Moving towards the Earth
• Moving away from the Earth
• This is a trick question that cannot be answered
• It isn't a star, it is a very large blueberry.

What does the Red-shift tell us about the universe

• the universe is expanding
• the universe is contracting
• the big bang is false
• nothing