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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 9 The Arrow of Time.

Multiple Choice Questions

1. What is the name of the particles that make up light?
(a) Gluons.
(b) Electrons.
(c) Protons.
(d) Photons.

2. If Hawking's model of the universe is used, black holes do what with their matter?
(a) Collapse on it.
(b) Nothing.
(c) Make it dense and start a new big bang.
(d) Release it back into space.

3. The writer of the Introduction hints that time might be able to move in what direction?
(a) A repeat cycle.
(b) Forwards.
(c) Sideways.
(d) Backwards.

4. There must be a beginning and an end to the universe if what theory is used?
(a) Theory of relativity.
(b) Theory of light.
(c) Singulatiry theory.
(d) Quantum mechanics.

5. Using low level radiation to detect black holes is in what stage of research?
(a) Theory.
(b) Analytical.
(c) Testing.
(d) Exploratory.

Short Answer Questions

1. In what year did Stephen Hawking enter the Royal Society of London?

2. Time is not separate from space, but is combined with it to form what?

3. What theory says that the universe has always existed and always will?

4. What question is among the unanswerable questions children ask, according to the Introduction?

5. In what year did Edwin Hubble discover galaxies outside of our own?

(see the answer key)

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