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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Twelve, Beyond Strings, In Search of M-Theory.

Multiple Choice Questions

1. What is one possible way that the three dimensions we observe could have been "stretched out"?
(a) Quantum fluctuations.
(b) A false vacuum event.
(c) The big bang.
(d) Vacuum energy.

2. What is the shape of all particles, at the smallest possible level, according to string theory?
(a) A thread of thin strings.
(b) A one-dimension loop.
(c) A tangled ball of thin filament.
(d) An infinitely long string.

3. What property did the double-slit experiment demonstrate that light has?
(a) It behaves as a wave.
(b) It has an infinite number of possible frequencies.
(c) It has a finite energy level at all frequencies.
(d) It can be bent by gravity fields.

4. Which of the following is NOT an actual version of string theory?
(a) Fermionic type IV theory.
(b) Type IIA theory.
(c) Type I theory.
(d) Heterotic type O(32) theory.

5. What type of a wave is light?
(a) A gravitational wave.
(b) An electrical wave.
(c) An electromagnetic wave.
(d) A photonic wave.

Short Answer Questions

1. Which of the following is a correct statement, based on the theory of special relativity?

2. What shape allows for the vibrational patterns that we observe in our universe?

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

4. Riemannian geometry describes the following objects: _____.

5. The first version of string theory did not include any particles of _____.

(see the answer key)

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