Big Bang Theory

If an object is moving toward us, its spectrum will experience

• no shift
• red shift
• black spectrum
• blue shift

Hubble observed that galaxies are

• expanding
• moving away from us
• moving towards us
• standing still

Which of the following is NOT evidence of the Big Bang Theory?

• most galaxies are red-shifted

• CMBR everywhere

• the universe is gaining matter

• the universe is expanding

Why is the light from distant galaxies red-shifted?

• They produce more red light than nearby galaxies
• They are moving away from us
• The longer wavelengths are filtered out more by dust
• They are moving toward us

About how long ago do scientists believe the universe began?

• 13-14 billion years ago
• 13-14 million years ago
• 12-13 billion years ago
• 12-13 million years ago

Is the Big Bang Theory completely true forever?

• Yes, it fits with current data.
• Yes, we believe it to be so.
• No, theories evolve with new data.
• No, it does not fit with data.

The existence of the cosmic background radiation implies that

• the big bang model is wrong.
• the universe began in a hot, dense state.
• the universe did not have a moment of creation.
• the universe began in a cold, low-density state. 

What were the original two elements in our universe?

• Lithium and Carbon
• Hydrogen and Neon
• Helium and Chlorine
• Hydrogen and Helium

What is Cosmic Background radiation?

• Evidence of a large explosion in the universe leaving radiation behind
• It is the life force that supports the universe
• Evidence of blackholes actually existing
• Evidence of that the universe is heating

What is red shift?

• Things in space are red
• Things in space will appear redder than they are if moving toward you
• Things in space will appear redder than they are if they are stationery
• Things in space will appear redder than they are if moving away from you