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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. The smallest possible unit of energy is referred to as _____.
(a) A quark.
(b) A muon.
(c) A quantum.
(d) A photon.
2. What does the string coupling constant govern?
(a) The strength of links between strings.
(b) The number of strings that can be joined at once.
(c) The relative length of threading between strings.
(d) The likelihood of strings joining or separating.
3. How does the number of extra "curled up" dimensions affect the vibration of strings?
(a) More dimensions provide more ways to vibrate.
(b) More dimensions allow for string with length in more than one direction.
(c) More dimensions require more energy for the same vibrational pattern.
(d) String vibration is not affected by additional dimensions.
4. What is M-theory?
(a) A combination of general relativity and string theory.
(b) A theory that would unite all branches of string theory.
(c) A specialized version of the "Heterotic A" string theory.
(d) An open-ended string theory.
5. Which of the following best describes the fate of Kaluza-Klein theory?
(a) It was quickly discarded as meaningless, but rediscovered by string theory.
(b) It was updated through the 1970s, and eventually incorporated into string theory.
(c) It became widespread for a short time, but receives almost no attention now.
(d) It became the mathematical basis of general relativity.
Short Answer Questions
1. Why are the extra dimensions needed in string theory?
2. How many total dimensions are required by string theory?
3. What is a virtual string pair?
4. What is strong-weak duality?
5. What characteristic did Werner Heisenberg discovered that some features of the universe at very small scales, and some properties of particle?
This section contains 400 words
(approx. 2 pages at 300 words per page)