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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Fifteen, Prospects.

Multiple Choice Questions

1. What is the scientific state of the "multiverse" theory?
(a) It was discarded years ago.
(b) It is well accepted by the physics community.
(c) It is accepted by almost all young physicists, but almost no older ones.
(d) It is on the fringes of physics.

2. When the universe is at its smallest possible size, which other property is also at its maximum?
(a) The Planck tension.
(b) Its temperature.
(c) The string coupling constant.
(d) The cosmological constant.

3. What is the fundamental force responsible for keeping the nucleus of an atom "glued" together?
(a) Potential electrical force.
(b) The nuclear-strong force.
(c) Gravitational force.
(d) Quantum-tunneling force.

4. In Einstein's famous equation, E=mc^2, what does "c" represent?
(a) The object's density.
(b) The speed of the object.
(c) The speed of light.
(d) The frequency of light.

5. About how long after the big bang were stars formed?
(a) 50 billion years.
(b) One billion years.
(c) One thousand years.
(d) One hundred billion years.

Short Answer Questions

1. Which of the following is not true according to special relativity?

2. What does the string coupling constant govern?

3. What is a string's winding number?

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

5. Which of the following best describes a fermion?

(see the answer key)

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