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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. As a string becomes wrapped, which of its properties increases?
(a) Its amplitude.
(b) Its wavelength.
(c) Its energy.
(d) Its spin.

2. What is the Planck tension?
(a) The typical tension in a string.
(b) The attraction felt by a string through the strong force.
(c) The vacuum-energy of a matter and anti-matter string pair.
(d) The pull between strings at the Planck length.

3. Why are the fluctuations that quantum physics predicts not observable in everyday life?
(a) Most fluctuations are canceled out by electromagnetic waves, like light.
(b) The human brain filters them out.
(c) The fluctuations only occur in deep space.
(d) On large scales, the effects cancel each other out.

4. Which of the following methods has been used to determine the shape of the Calabi-Yau space?
(a) Perturbation theory.
(b) The finite elements method.
(c) Matrix manipulation.
(d) Discrete mathematics.

5. How many dimensions did the tiny objects involved in the original statement of string theory have?
(a) Four.
(b) One.
(c) Three.
(d) Two.

Short Answer Questions

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

2. By what factor is the minimum mass of a wrapped string in determined?

3. What type of motion cannot be felt or sensed by the moving observer?

4. Which of the following most accurately describes the state of the universe?

5. Quantum physics began with the study of the energy inside a heated, closed container, such as an oven. The problem with theories at the time was that they predicted that _____.

(see the answer key)

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