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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 characteristic did Werner Heisenberg discovered that some features of the universe at very small scales, and some properties of particle?
(a) They can change spontaneously, with no external influence.
(b) They always increase or decrease by certain increments.
(c) They are dependant on the velocity of the object being studied.
(d) They cannot be known with complete precision.

2. In M-theory, what is a two-dimensional oscillating object is called?
(a) A flop.
(b) A membrane.
(c) A blob.
(d) A two-string.

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

4. What property did the double-slit experiment demonstrate that light has?
(a) It has an infinite number of possible frequencies.
(b) It can be bent by gravity fields.
(c) It has a finite energy level at all frequencies.
(d) It behaves as a wave.

5. Which physicist is credited with discovering that light is composed of particles?
(a) Planck.
(b) Rutherford.
(c) Einstein.
(d) Maxwell.

Short Answer Questions

1. In M-theory, what role does duality play?

2. What is one possible way that the three dimensions we observe could have been "stretched out"?

3. What is the photoelectric effect?

4. What is the importance of the string-coupling constant?

5. What rule did Max Planck discover the electromagnetic waves bounded in a container, such as an oven, must follow?

(see the answer key)

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