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20 questions
Hubble observed that galaxies are
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
Which of the following techniques are used to measure the distances to stars?
Parallax
Doppler Shift
Universal recession
How is a theory different from a guess? Choose the best answer.
A theory cannot be disproven; a guess can be
A theory is backed up by hard evidence; a guess is not
A theory is agreed upon by scientists; a guess is only agreed on by laypeople
A theory is usually very old; a guess is usually very new
Place the following in sequence: A) Hubble makes his discoveries; B) Cosmic background radiation is first detected; C) Lemaitre proposes his theory
A, B, C
B, C, A
C, A, B
C, B, A
What is one major piece of evidence that the Big Bang theory is correct?
Astronomers have detected leftover radiation from the Big Bang
Everything in the universe has remained in the same location for billions of years
Astronomers have discovered that the universe is no longer expanding
Astronomers have discovered evidence that the universe will soon begin contracting in a "Big Crunch"
Which of the following is NOT evidence of the Big Bang Theory?
Abundance of Hydrogen and Helium
Background radiation distributed throughout the universe
Stars that are blue shifted
The universe is getting bigger
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