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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 6, Nothing but Music, The Essentials of Superstring Theory.

Multiple Choice Questions

1. Quantum physics began with the study of the energy inside a heated, closed container, such as an oven. The problem with theories at the time was that they predicted that _____.
(a) The oven can store more energy the smaller it is.
(b) The oven contains no energy.
(c) The oven can only store energy if it has no mass.
(d) The oven contains infinite energy.

2. Black holes are dense and massive cosmological bodies. What unique distinction do they have?
(a) Neutrinos always flow towards them.
(b) They are the only objects that emit gamma rays.
(c) Light cannot escape their gravitational well.
(d) They are the only types of stars that can produce uranium and heavier elements.

3. How many dimensions did the tiny objects involved in the original statement of string theory have?
(a) Three.
(b) Two.
(c) One.
(d) Four.

4. In the 1800s, James Clerk Maxwell used a new mathematical framework to unite _____.
(a) Magnetism and light.
(b) Nuclear forces and gravity.
(c) Electricity and magnetism.
(d) Magnetism and gravity.

5. When the distance between two objects is doubled, what happens to the strength of the gravitational pull between them?
(a) It quadruples.
(b) It diminishes to one-fourth its original value.
(c) It is unchanged.
(d) It diminishes to one-half its original value.

Short Answer Questions

1. Which of the following is one of the major problems in using both quantum physics and general relativity?

2. General relativity is incompatible with _____.

3. Einstein's equation, E=mc^2, states that which of the following are equivalent?

4. What is the quantum, or messenger particle, of the strong force?

5. What property did the double-slit experiment demonstrate that light has?

(see the answer key)

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