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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 6, Nothing but Music, The Essentials of Superstring Theory.

Multiple Choice Questions

1. What rule did Max Planck discover the electromagnetic waves bounded in a container, such as an oven, must follow?
(a) The frequencies of the waves must all be the same.
(b) They must have a whole number of peaks and troughs that fit perfectly inside the container.
(c) The energies of all waves inside the over must cancel out to zero.
(d) There must be an even number of peaks and troughs.

2. How are the amplitude of a string's vibration and the mass of the particle it represents related?
(a) Amplitude and mass are not related.
(b) The higher the amplitude, the more massive the particle.
(c) The higher the amplitude, the less massive the particle.
(d) If there is a non-zero amplitude, the particle is massless.

3. If a clock were accelerated to nearly the speed of light for a year's time, which of the following would be true of its reading at the end of that time?
(a) It would be less than one year.
(b) It would be more than one year.
(c) Its reading would be random and meaningless.
(d) It would be exactly equal to one year.

4. Which of the following is true regarding experimental confirmation of string theory?
(a) It has not yet been experimentally confirmed.
(b) It has been experimentally confirmed, but the data are still being processed.
(c) It can never be confirmed.
(d) It was confirmed in the 1980s.

5. What is the Planck energy?
(a) The energy required to create a string.
(b) The energy required to change a string's pattern.
(c) The typical energy of a messenger particle.
(d) The typical energy of a vibrating string.

Short Answer Questions

1. Which physicist is credited with discovering that light is composed of particles?

2. What is the Planck tension?

3. What is the fundamental particle, the smallest possible bundle of energy, for the electromagnetic force?

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

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

(see the answer key)

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