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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Thirteen, Black Holes, A String/M Theory Perspective.

Multiple Choice Questions

1. There are many possible Calabi-Yau spaces, but only shapes with which of the following characteristics are considered real possibilities?
(a) Those that solve the perturbation theory.
(b) Those that have no time-dimensions.
(c) Those that unify the four forces and have no extended dimensions.
(d) Those that meet the vibration requirements and have an appropriate number of dimensions.

2. What is M-theory?
(a) A theory that would unite all branches of string theory.
(b) A specialized version of the "Heterotic A" string theory.
(c) A combination of general relativity and string theory.
(d) An open-ended string theory.

3. What does the quantum electroweak theory state about the two fundamental forces it describes?
(a) At extreme energy and temperature conditions, they become the same thing.
(b) They only interact at the Planck length and below.
(c) In four-dimensional space, they are the same thing.
(d) They are identical at quantum scales.

4. In M-theory, what role does duality play?
(a) It allows space-tearing flop transitions to extend into extra dimensions.
(b) It helps to incorporate general relativity.
(c) It shows that the five theories are connected.
(d) It links electromagnetism and gravity.

5. What characteristic of the string determines the properties of the particle it represents?
(a) Its frequency of vibration.
(b) The number of other strings with which it is threaded.
(c) Its length.
(d) Its mass.

Short Answer Questions

1. Which of the following is true regarding our current knowledge of the Calabi-Yau space?

2. Which of the following is true regarding the mass and spin of a pair of superpartners?

3. Which of the following is true about the tension within a string?

4. As a string becomes wrapped, which of its properties increases?

5. Which of the following is true regarding experimental evidence for super particles?

(see the answer key)

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