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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 is true regarding the tearing of space-time according to string theory?
(a) It cannot tear.
(b) A tear would destroy the universe.
(c) It can tear under special circumstances.
(d) It is not known if space-time can tear.
2. Which of the following is correct about the speed at which light moves?
(a) It moves at a constant speed only near a gravitational field.
(b) It moves faster at higher energy levels.
(c) It moves at a constant speed for all observers.
(d) Its speed depends on the observer.
3. What is the shape of all particles, at the smallest possible level, according to string theory?
(a) A thread of thin strings.
(b) A one-dimension loop.
(c) A tangled ball of thin filament.
(d) An infinitely long string.
4. Two theories form the basis of modern physics, but are incompatible with one another. String theory attempts to reconcile these fields. What are these two theories?
(a) Gravity and general relativity.
(b) General relativity and quantum mechanics.
(c) Quantum mechanics and the photoelectric effect.
(d) General relativity and special relativity.
5. What is a string's winding number?
(a) The ratio of its Planck tension to its tension at rest.
(b) The number of other strings it is threaded with.
(c) The number of times it is wrapped around a circular dimension.
(d) The number of dimensions it vibrations through.
Short Answer Questions
1. Which of the following methods has been used to determine the shape of the Calabi-Yau space?
2. Why are the fluctuations that quantum physics predicts not observable in everyday life?
3. What discovery about string theory triggered the "superstring revolution"?
4. In string theory, how do strings interact?
5. According to string theory, which of the following cannot occur during the collapse of the universe?
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This section contains 401 words (approx. 2 pages at 300 words per page) |
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