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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Ten, Quantum Geometry.

Multiple Choice Questions

1. Quantum electroweak theory concerns quantum mechanics and _____.
(a) The electromagnetic force.
(b) Gravity.
(c) The strong force.
(d) The weak force.

2. Quantum chromodynamics concerns quantum mechanics and ____.
(a) The electromagnetic force.
(b) The strong force.
(c) Gravity.
(d) The weak force.

3. Which of the following is true of a particle's spin?
(a) It changes depending on the particle's energy.
(b) It increases with each interaction with a particle of greater spin.
(c) It depends on the strength of the local magnetic field.
(d) It is constant for that particle.

4. According to general relativity, the change that an object causes in the fabric of space-time depends directly on _____.
(a) Its direction compared to the observer.
(b) Its density.
(c) Its mass.
(d) Its proximity to another massive body.

5. What is the quantum, or messenger particle, of gravity?
(a) The gravino.
(b) The Einstein boson.
(c) The Calabi-Yau particle.
(d) The graviton.

Short Answer Questions

1. Which of the following is one of the major problems in using both quantum physics and general relativity?

2. According to Newton's law of gravity, the strength of the pull between two objects depends on what factors?

3. What is one of the difficulties in determining the shape of the Calabi-Yau space?

4. According to general relativity, all objects that have mass have what effect on space-time?

5. At what scale of length is quantum geometry necessitated?

(see the answer key)

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