Big Bang Theory - Practice

Front

What is the phenomenon called when galaxies move away from us and a shift on the electromagnetic spectrum is noticed?

Back

Redshift

Front

What does the Big Bang theory suggest about the universe?

Back

The universe is continually expanding.

Front

What does it mean if a galaxy is redshifted?

Back

It is moving away from us.

Front

How many years ago do Big Bang theorists commonly accept the Big Bang occurred?

Back

13.8 billion years ago.

Front

What theory states that the universe began as a small point that expanded rapidly?

Back

Big Bang Theory.

Front

What is the term for the initial state of the universe before the Big Bang?

Back

Singularity.

Front

What is the observable evidence that supports the Big Bang theory?

Back

Cosmic Microwave Background Radiation.

Front

What is the term for the process by which the universe is expanding?

Back

Cosmic Expansion.

Front

What is the significance of redshift in astronomy?

Back

It indicates that an object is moving away from the observer.

Front

What is the opposite of redshift?

Back

Blueshift.