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

Multiple Choice Questions

1. Which of the following accurately describes the phenomenon of "quantum tunneling"?
(a) High-energy waves can penetrate the fabric of space-time for very short periods of time.
(b) Some particles are linked together, no matter how much space separates them.
(c) Particles with high energy can vanish in one location, instantly appearing in another.
(d) Particles can sometimes "borrow" energy to move in ways impossible in classical physics.

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

3. What does the string coupling constant govern?
(a) The likelihood of strings joining or separating.
(b) The relative length of threading between strings.
(c) The strength of links between strings.
(d) The number of strings that can be joined at once.

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

5. Which of the following correctly describes the structure of an atom?
(a) A cloud of protons, each with an electron orbiting it.
(b) A cloud of electrons orbiting a dense nucleus.
(c) A single nucleus composed of both electrons and protons.
(d) A cloud of neutrons orbiting a nucleus of other particles.

Short Answer Questions

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

2. There are many possible Calabi-Yau spaces, but only shapes with which of the following characteristics are considered real possibilities?

3. Regarding mirror-symmetry, Greene's work proved that _____.

4. When the distance between two objects is doubled, what happens to the strength of the gravitational pull between them?

5. The advent of fermionic vibrational patterns resulted in the creation of _____.

(see the answer key)

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