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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. What discovery was made that incorporated gravitational force into quantum mechanics via string theory?
(a) Gravity could be made symmetric only if the graviton is a string.
(b) Gravity was found to be supersymmetric.
(c) At extremely small scales, gravity is fused with the strong force.
(d) A vibrational pattern with the properties of the graviton was discovered.

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

3. What distinction does dark matter have?
(a) It exists in curled-up dimensions.
(b) It does not give off light.
(c) It can spontaneously form black holes.
(d) It is composed of anti-matter.

4. How are the wavelength of a string's vibration and the mass of the particle it represents related?
(a) The longer the wavelength, the more massive the particle.
(b) Wavelength and mass are not related.
(c) If there is a wavelength above the Planck length, the particle is massless.
(d) The longer the wavelength, the less massive the particle.

5. Which of the following was the first string theory?
(a) Fermionic string theory.
(b) Hadron string theory.
(c) Lepton theory.
(d) Bosonic string theory.

Short Answer Questions

1. What does the string coupling constant govern?

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

3. Which of the following will occur after the collapse of the universe as predicted by string theory?

4. What is the quantum, or messenger particle, of gravity?

5. What metric best approximates the scales at which extra dimensions would have a major impact?

(see the answer key)

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