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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Ten, Quantum Geometry.

Multiple Choice Questions

1. Which of the following is true about the tension within a string?
(a) It has no bearing on a string's energy.
(b) It is very high, more than a billion tons.
(c) It is very low, less than a few pounds.
(d) It cannot be said truly to exist.

2. At what scale of length is quantum geometry necessitated?
(a) Cosmological scales.
(b) The Planck length.
(c) Nanometers.
(d) The Riemann scale.

3. Which of the following will occur after the collapse of the universe as predicted by string theory?
(a) The universe will be mirrored in another dimension.
(b) The universe will become a single black hole.
(c) The universe will cease to exist.
(d) The universe will expand again.

4. What discovery was made that incorporated gravitational force into quantum mechanics via string theory?
(a) Gravity was found to be supersymmetric.
(b) A vibrational pattern with the properties of the graviton was discovered.
(c) At extremely small scales, gravity is fused with the strong force.
(d) Gravity could be made symmetric only if the graviton is a string.

5. How many total dimensions are required by string theory?
(a) Ten.
(b) Seven.
(c) Five.
(d) Eight.

Short Answer Questions

1. What is the fundamental particle, the smallest possible bundle of energy, for the electromagnetic force?

2. What are the vibrational patterns that a string can exhibit called?

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

4. What spin do all particles of matter have?

5. What are the characteristics of a wave?

(see the answer key)

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