Big Bang Theory

According to the Big Bang Theory, what is happening to the size of the universe?

• The universe is growing

• The universe is shrinking

• The universe is staying the same size

• The universe rides on the back of four elephants, supported by a turtle.

What observation have astrophysicists made about the rate at which the universe is changing size?

• The universe is growing faster and faster

• The universe is still growing, but it's slowing down

• The universe is shrinking faster and faster

• The universe is shrinking, but it's slowing down and should stop soon.

What does the BBT hypothesize about the size of the early universe?

• The universe used to be much much larger than it is today.

• The universe used to be a tiny speck of super-dense matter.

• The universe has always been the same size

What is Hubble's Law?

• The farther away a galaxy is from us, the faster it moves away from us.

• The farther away a galaxy is from us, the slower it moves away from us.

• The closer a galaxy is to us, the faster it moves away from us.

• The more red light we observe from another galaxy, the closer we are to that galaxy

According to the Big Bang, about how old is the universe?

• Like, 3 or 4 weeks?

• 175 million years old

• 14 billion years old

• 37 trillion years old

Most scientists believe the Big Bang Theory explains which of the following questions?

• How our planets and moons formed

• How our universe began

• How the sun turns hydrogen into helium

• How fast light travels through space

Which word best describes a singularity?

• a. Large

• b. Cold

• c. Dense

• d. Flammable

How big was the universe at the Big Bang?

• Really small - like a tennis ball
• A single point called the singularity
• A hot state as large as the sun
• A cold state as large as the moon

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 were the original two elements in our universe?

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