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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. Which one of the following do physicists believe occurs at the central point of a black hole?
(a) Space-time becomes inverted.
(b) An infinite-time flop-transition occurs.
(c) A "white hole" is formed.
(d) Space-time is torn.

2. Which of the following methods has been used to determine the shape of the Calabi-Yau space?
(a) Perturbation theory.
(b) The finite elements method.
(c) Discrete mathematics.
(d) Matrix manipulation.

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

4. What does the string coupling constant govern?
(a) The likelihood of strings joining or separating.
(b) The number of strings that can be joined at once.
(c) The strength of links between strings.
(d) The relative length of threading between strings.

5. What is the traditional method of testing theories in physics?
(a) Experimentation.
(b) Mathematical proof.
(c) Consensus.
(d) Debate.

Short Answer Questions

1. How many total dimensions are required by string theory?

2. Kaluza-Klein theory units which two fundamental forces?

3. What is one possible way that the three dimensions we observe could have been "stretched out"?

4. Which of the following accurately describes the phenomenon of "quantum tunneling"?

5. How are the wavelength of a string's vibration and the mass of the particle it represents related?

(see the answer key)

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