The Big Bang Theory Review

What is the Big Bang Theory?

• A theory about the end of the universe
• A theory that describes the origin of the universe
• A theory about black holes
• A theory about the life cycle of stars

Approximately how many years ago did the Big Bang occur?

• 1.4 billion years ago
• 13.8 billion years ago
• 4.5 billion years ago
• 10.2 billion years ago

What evidence supports the Big Bang Theory?

• The existence of black holes
• The motion of galaxies away from us
• The rotation of Earth
• The presence of water on Mars

Who first proposed the idea of the expanding universe?

• Albert Einstein
• Edwin Hubble
• Isaac Newton
• Stephen Hawking

What is cosmic microwave background radiation?

• Radiation from the sun
• Radiation left over from the Big Bang
• Radiation from black holes
• Radiation from stars

What does the redshift of galaxies indicate?

• Galaxies are moving towards us
• Galaxies are stationary
• Galaxies are moving away from us
• Galaxies are shrinking

Which scientist is credited with discovering the cosmic microwave background radiation?

• Albert Einstein
• Georges Lemaître
• Arno Penzias and Robert Wilson
• Carl Sagan

What does the term "singularity" refer to in the context of the Big Bang?

• A black hole
• A point where density is infinite
• A star
• A galaxy

What is dark energy believed to do in the universe?

• Slow down the expansion of the universe
• Have no effect on the universe
• Accelerate the expansion of the universe
• Produce light

What is the name of the law that states the universe is expanding?

• Newton's Law
• Hubble's Law
• Kepler's Law
• Einstein's Law