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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 one of the major problems in using both quantum physics and general relativity?
(a) At small scales, quantum physics predicts uncertainty, but general relativity requires certainty.
(b) Quantum physics predicts that all particles are massless.
(c) General relativity is a wave theory, but quantum physics is a particle theory.
(d) General relativity is time-dependant, quantum physics is a steady-state theory.
2. When the universe is at its smallest possible size, which other property is also at its maximum?
(a) The cosmological constant.
(b) The string coupling constant.
(c) Its temperature.
(d) The Planck tension.
3. The wave-like nature of the electron means that after a collision, _____.
(a) The electron will disperse into a wave of energy.
(b) The electron has a range of possible locations.
(c) The electron will double in frequency.
(d) The electron can never be located again.
4. The advent of fermionic vibrational patterns resulted in the creation of _____.
(a) Symmetric antistring theory.
(b) Supersymmetric quantum field theory.
(c) Fermionic resonance theory.
(d) Quantum electroweak theory.
5. Which of the following is closest to the Planck length?
(a) A billionth of a billionth of a centimeter.
(b) A thousandth of a centimeter.
(c) A millionth of a centimeter.
(d) A millionth of a billionth of a billionth of a billionth of a centimeter.
Short Answer Questions
1. According to string theory, why do different particles have different properties?
2. What characteristic of the string determines the properties of the particle it represents?
3. How are the amplitude of a string's vibration and the mass of the particle it represents related?
4. What type of a string can be massless?
5. Which of the following best describes a fermion?
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This section contains 370 words (approx. 2 pages at 300 words per page) |
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