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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. According to special relativity, which of the following is true about the passage of time for an observer moving near the speed of light?
(a) Time would pass very quickly compared to an observer at rest.
(b) The passage of time could not be predicted.
(c) Time would pass slowly compared to an observer at rest.
(d) No time would pass at all.

2. In Einstein's famous equation, E=mc^2, what does "c" represent?
(a) The frequency of light.
(b) The speed of the object.
(c) The object's density.
(d) The speed of light.

3. At what scale of length is quantum geometry necessitated?
(a) Cosmological scales.
(b) The Planck length.
(c) The Riemann scale.
(d) Nanometers.

4. By what factor is the minimum mass of a wrapped string in determined?
(a) The vacuum energy of the dimension it is wrapped around.
(b) The string's Planck tension.
(c) The string's winding number.
(d) The size of the circular dimension it is wrapped around.

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

Short Answer Questions

1. How are the amplitude of a string's vibration and the mass of the particle it represents related?

2. What characteristic of the string determines the properties of the particle it represents?

3. Which of the following is one of the difficulties in observing super particles?

4. Which of the following is NOT an actual version of string theory?

5. Einstein's equation, E=mc^2, states that which of the following are equivalent?

(see the answer key)

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