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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. What rule did Max Planck discover the electromagnetic waves bounded in a container, such as an oven, must follow?
(a) The energies of all waves inside the over must cancel out to zero.
(b) There must be an even number of peaks and troughs.
(c) They must have a whole number of peaks and troughs that fit perfectly inside the container.
(d) The frequencies of the waves must all be the same.

2. In M-theory, what role does duality play?
(a) It links electromagnetism and gravity.
(b) It allows space-tearing flop transitions to extend into extra dimensions.
(c) It helps to incorporate general relativity.
(d) It shows that the five theories are connected.

3. Who first proposed the existence of extra dimensions?
(a) Hawking.
(b) Einstein.
(c) Maxwell.
(d) Kaluza.

4. What shape allows for the vibrational patterns that we observe in our universe?
(a) The Calabi-Yau space.
(b) The six-dimensional torus.
(c) The Einstein matrix.
(d) The Kaluza-Klein shape.

5. Kaluza-Klein theory units which two fundamental forces?
(a) Gravity and electromagnetism.
(b) Electromagnetism and the weak force.
(c) The strong force and the weak force.
(d) Gravity and the strong force.

Short Answer Questions

1. How many total dimensions are required by string theory?

2. Who posited the existence of M-theory?

3. Under string theory, which of the following is true regarding extra dimensions?

4. How does the shape of the extra "curled up" dimensions affect the vibration of strings?

5. What is M-theory?

(see the answer key)

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