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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Fifteen, Prospects.

Multiple Choice Questions

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

2. What metric best approximates the scales at which extra dimensions would have a major impact?
(a) The Kaluza length.
(b) The Planck length.
(c) The nanometer.
(d) One-billionth of a meter.

3. Which of the following is NOT an actual version of string theory?
(a) Type IIA theory.
(b) Fermionic type IV theory.
(c) Type I theory.
(d) Heterotic type O(32) theory.

4. What two major branches of modern physics does string theory incorporate?
(a) Quantum mechanics and general relativity.
(b) General relativity and electromagnetism.
(c) Gravity and electromagnetism.
(d) Quantum mechanics and strong-weak duality.

5. When a Calabi-Yau space collapses, it comes back as a space. What distinction does it have?
(a) It has no shielding against tears in space-time.
(b) It has one fewer dimensions.
(c) It has one less hole.
(d) It has mirror-symmetry with its old shape.

Short Answer Questions

1. In what important way does string theory affect the cosmological model of the big bang?

2. What is entropy a measure of?

3. If a clock were accelerated to nearly the speed of light for a year's time, which of the following would be true of its reading at the end of that time?

4. The discovery of the tearing of space-time came from cooperation between experts in physics and _____.

5. Which of the following is true regarding experimental evidence for super particles?

(see the answer key)

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