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

Multiple Choice Questions

1. According to Newton's law of gravity, the strength of the pull between two objects depends on what factors?
(a) The distance between them and their average atomic numbers.
(b) Their masses and the distance between them.
(c) Their masses and potential energies.
(d) Their densities and the strength of the gravitational field they occupy.

2. According to Newton's theory of gravity, if two objects have a gravitational pull on one another, and one changes its mass or distance from the other, how quickly does the effect of this change travel to the other object?
(a) Near the speed of light, faster for more massive objects.
(b) Near the speed of light, faster for lighter objects.
(c) Instantaneously.
(d) At exactly the speed of light.

3. Which of the following parameters that are desirable in a "theory of everything" does string theory have?
(a) Naturally-occurring symmetry and no adjustable parameters.
(b) Supergravity and many adjustable parameters.
(c) Duality and supergravity.
(d) Duality and theoretical symmetry.

4. How many dimensions are necessitated by M-theory?
(a) Eleven.
(b) Eight.
(c) Nine.
(d) Ten.

5. The advent of fermionic vibrational patterns resulted in the creation of _____.
(a) Quantum electroweak theory.
(b) Symmetric antistring theory.
(c) Supersymmetric quantum field theory.
(d) Fermionic resonance theory.

Short Answer Questions

1. What is the Planck mass?

2. According to string theory, which of the following cannot occur during the collapse of the universe?

3. What is the fundamental force responsible for keeping the nucleus of an atom "glued" together?

4. Which of the following will occur after the collapse of the universe as predicted by string theory?

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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