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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. The first version of string theory did not include any particles of _____.
(a) Messenger particles.
(b) Bosons.
(c) Gravitons.
(d) Fermions.

2. Which of the following is not one of the four fundamental forces of the universe?
(a) Gravity.
(b) The electromagnetic force.
(c) The nuclear-weak force.
(d) The photoelectric force.

3. In string theory, how do strings interact?
(a) By joining and splitting.
(b) By resonating with each other.
(c) By colliding and tangling.
(d) By threading.

4. Which of the following qualities must a physical law have in order to be considered symmetric?
(a) It is valid for both matter and energy.
(b) It is valid for both matter and anti-matter.
(c) It works regardless of the spin of the particles involved.
(d) It does not depend on where or when it is applied.

5. What prevents the potentially dangerous effects of an exposed tear in space-time?
(a) Tears are quickly mended by the force of gravity.
(b) Tears are shielded by strings.
(c) Tears only widen to about the Planck length.
(d) Tears occur in curled-up dimensions.

Short Answer Questions

1. Which of the following is one of the major problems in using both quantum physics and general relativity?

2. Which of the following best describes the fate of Kaluza-Klein theory?

3. What is the photoelectric effect?

4. What discovery about string theory triggered the "superstring revolution"?

5. Which of the following did Einstein considered time?

(see the answer key)

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