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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. The wave-like nature of the electron means that after a collision, _____.
(a) The electron will double in frequency.
(b) The electron has a range of possible locations.
(c) The electron can never be located again.
(d) The electron will disperse into a wave of energy.

2. General relativity is incompatible with _____.
(a) State theory.
(b) Quantum mechanics.
(c) The big bang theory.
(d) The photoelectric effect.

3. Which physicist is credited with discovering that light is composed of particles?
(a) Einstein.
(b) Planck.
(c) Rutherford.
(d) Maxwell.

4. According to string theory, why do different particles have different properties?
(a) They have different types of strings.
(b) Their strings do not have the same number of dimensions.
(c) Their strings are different lengths.
(d) Their strings are vibrating in different patterns.

5. According to Newton's theory of gravity, if two objects have a gravitational pull on one another, and one changes its mass or distance from the other, how quickly does the effect of this change travel to the other object?
(a) Instantaneously.
(b) At exactly the speed of light.
(c) Near the speed of light, faster for lighter objects.
(d) Near the speed of light, faster for more massive objects.

Short Answer Questions

1. According to special relativity, which of the following is true about the passage of time for an observer moving near the speed of light?

2. According to general relativity, the change that an object causes in the fabric of space-time depends directly on _____.

3. What is the quantum, or messenger particle, of gravity?

4. Which of the follow is true of objects with which string theory is concerned?

5. Which of the following did Einstein considered time?

(see the answer key)

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