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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 11 Conclusion.

Multiple Choice Questions

1. To illustrate the concept of disorder in a system, Hawking uses what example in Chapter 9?
(a) A car crash.
(b) A jigsaw puzzle.
(c) A bag of marbles.
(d) A broken vase.

2. What is one of the varieties of quarks?
(a) Odd.
(b) Random.
(c) Quirky.
(d) Strange.

3. What type of matter might account for gravitational forces that cannot be explained by the mass of our universe?
(a) Dark matter.
(b) Nothing.
(c) Black hole matter.
(d) Clear matter.

4. A closed string is defined as what?
(a) A string that closes off an area of space.
(b) A string that connects two objects and no other.
(c) A string joined up with itself in a closed loop.
(d) A string that has ends.

5. Black holes are similar to the singularity that existed before what event?
(a) The big bang.
(b) The expansion of the universe.
(c) The destruction of cluster galaxies.
(d) The creation of the earth.

Short Answer Questions

1. In string theory, the strings have what dimension and no other?

2. Quanta are made of what?

3. There must be a beginning and an end to the universe if what theory is used?

4. What is the fate of black holes according to Hawking's model of the universe?

5. How many questions are left unanswered prior to the development of math that incorporates quantum mechanics?

(see the answer key)

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