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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. How can black holes be detected?
(a) By observing the directions of solar winds.
(b) By their effects on objects around them.
(c) With an ultraviolet-range telescope.
(d) By looking for dark gaps in clusters of stars.

2. What is the quantum, or messenger particle, of gravity?
(a) The graviton.
(b) The gravino.
(c) The Einstein boson.
(d) The Calabi-Yau particle.

3. 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) The energies of all waves inside the over must cancel out to zero.
(c) There must be an even number of peaks and troughs.
(d) They must have a whole number of peaks and troughs that fit perfectly inside the container.

4. Quantum physics began with the study of the energy inside a heated, closed container, such as an oven. The problem with theories at the time was that they predicted that _____.
(a) The oven can store more energy the smaller it is.
(b) The oven contains infinite energy.
(c) The oven contains no energy.
(d) The oven can only store energy if it has no mass.

5. What is a virtual string pair?
(a) A short-lived pair of strings resulting from a normal string splitting momentarily.
(b) A pair of strings that cancel each other out and therefore do no correspond to real particles.
(c) A pair of strings created purely in the curled-up dimensions.
(d) A quantum-entangled pair of unwound, massless strings.

Short Answer Questions

1. Under string theory, which of the following is true regarding extra dimensions?

2. Quantum electroweak theory concerns quantum mechanics and _____.

3. What does the string coupling constant govern?

4. 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?

5. According to special relativity, which of the following can move faster than light?

(see the answer key)

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