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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 of the following most accurately describes the state of the universe?
(a) It is expanding.
(b) It is collapsing.
(c) It is about to begin contracting.
(d) It is mostly static.

2. What rule did Max Planck discover the electromagnetic waves bounded in a container, such as an oven, must follow?
(a) The frequencies of the waves must all be the same.
(b) They must have a whole number of peaks and troughs that fit perfectly inside the container.
(c) There must be an even number of peaks and troughs.
(d) The energies of all waves inside the over must cancel out to zero.

3. Black holes are dense and massive cosmological bodies. What unique distinction do they have?
(a) They are the only objects that emit gamma rays.
(b) They are the only types of stars that can produce uranium and heavier elements.
(c) Light cannot escape their gravitational well.
(d) Neutrinos always flow towards them.

4. Riemannian geometry describes the following objects: _____.
(a) Curved spaces.
(b) Six-dimensional manifolds.
(c) N-dimensional spheres.
(d) Finite, unbounded spaces.

5. In which particle was spin first discovered?
(a) The proton.
(b) The neutron.
(c) The photon.
(d) The electron.

Short Answer Questions

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

2. In ratios of what number do winding energies come?

3. Which of the following is true regarding the tearing of space-time according to string theory?

4. What type of a wave is light?

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

(see the answer key)

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