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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. According to general relativity, which of the following is said to warp or bend space-time?
(a) Accelerated motion and orbital motion.
(b) Accelerated motion and gravity.
(c) Gravity and electromagnetic fields.
(d) Constant, relativistic speed motion.

2. The smallest possible unit of energy is referred to as _____.
(a) A quantum.
(b) A photon.
(c) A quark.
(d) A muon.

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

4. Which of the following is not one of the four fundamental forces of the universe?
(a) The nuclear-weak force.
(b) Gravity.
(c) The photoelectric force.
(d) The electromagnetic force.

5. What are the components of an atomic nucleus?
(a) Photons and electrons.
(b) Protons and electrons.
(c) Electrons and neutrons.
(d) Protons and neutrons.

Short Answer Questions

1. What is the shape of all particles, at the smallest possible level, according to string theory?

2. Which of the following is not true according to special relativity?

3. Richard Feynman's "sum over paths" theory states that in the double-slit experiment, an electron behaves in what way?

4. Quantum electroweak theory concerns quantum mechanics and _____.

5. What are the vibrational patterns that a string can exhibit called?

(see the answer key)

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