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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 shape allows for the vibrational patterns that we observe in our universe?
(a) The Kaluza-Klein shape.
(b) The Calabi-Yau space.
(c) The Einstein matrix.
(d) The six-dimensional torus.

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

3. What spin do all particles of matter have?
(a) 1.
(b) 2.
(c) 3/2.
(d) 1/2.

4. Two theories form the basis of modern physics, but are incompatible with one another. String theory attempts to reconcile these fields. What are these two theories?
(a) General relativity and special relativity.
(b) General relativity and quantum mechanics.
(c) Gravity and general relativity.
(d) Quantum mechanics and the photoelectric effect.

5. As a string becomes wrapped, which of its properties increases?
(a) Its spin.
(b) Its amplitude.
(c) Its energy.
(d) Its wavelength.

Short Answer Questions

1. General relativity is incompatible with _____.

2. By what factor is the minimum mass of a wrapped string in determined?

3. What is supergravity?

4. What does the string coupling constant govern?

5. Which of the following is true regarding the amount of visible matter in the universe compared to the amount of matter required to cause collapse of the universe?

(see the answer key)

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