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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 force is so strong in a black hole that nothing can escape?
(a) Force.
(b) Magnetism.
(c) Gravity.
(d) Electricity.

2. The development of what kind of technology depends upon the theory of quantum mechanics?
(a) Cell phones.
(b) Liquid crystal displays.
(c) Silicon transmisions.
(d) Microelectronics.

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

4. Which of the following is not an arrow of time recognized by Hawking's book?
(a) Thermodynamic.
(b) Psychological.
(c) Physiological.
(d) Cosmological.

5. In what year did Wolfgang Pauli bring the exclusion principle to physics?
(a) 1932.
(b) 1925.
(c) 1928.
(d) 1941.

Short Answer Questions

1. What is one of the colors of quarks?

2. The distance light travels in an earth year is called what?

3. How many black holes are estimated per cubic light year of space?

4. What is entropy?

5. What does a particle with 0 spin look like?

(see the answer key)

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