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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. Who provided the computer programming to process the results of the Morrison-Greene experiment?
(a) Tian.
(b) Aspinwall.
(c) Yau.
(d) Rutherford.

2. Under string theory, which of the following is true regarding extra dimensions?
(a) Some or all of them might be time-dimensions.
(b) They must all be space-dimensions.
(c) They must all be time-dimensions.
(d) They must all be space-dimensions, or they must all be time-dimensions.

3. What type of motion cannot be felt or sensed by the moving observer?
(a) Slowing or decelerating movement.
(b) Accelerating movement.
(c) Constant-velocity movement.
(d) Orbital movement around a star.

4. What is the result when a particle of matter and a particle of antimatter are brought into contact?
(a) Energy is released and both particles are destroyed.
(b) A strange quark is formed.
(c) A black hole is formed.
(d) A theoretically unlimited amount of energy is released.

5. What spin do all particles of matter have?
(a) 2.
(b) 1/2.
(c) 1.
(d) 3/2.

Short Answer Questions

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

2. Which of the following accurately describes the phenomenon of "quantum tunneling"?

3. Black holes are dense and massive cosmological bodies. What unique distinction do they have?

4. In 1968 it was discovered that protons and neutrons are composed of which type of particle?

5. Richard Feynman's "sum over paths" theory states that in the double-slit experiment, an electron behaves in what way?

(see the answer key)

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