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

2. The wave-like nature of the electron means that after a collision, _____.
(a) The electron will double in frequency.
(b) The electron will disperse into a wave of energy.
(c) The electron has a range of possible locations.
(d) The electron can never be located again.

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

4. Which of the following is correct about the speed at which light moves?
(a) It moves at a constant speed for all observers.
(b) It moves at a constant speed only near a gravitational field.
(c) It moves faster at higher energy levels.
(d) Its speed depends on the observer.

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 _____.
(a) The oven contains infinite energy.
(b) The oven can only store energy if it has no mass.
(c) The oven contains no energy.
(d) The oven can store more energy the smaller it is.

Short Answer Questions

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

2. What are the components of an atomic nucleus?

3. In Einstein's famous equation, E=mc^2, what does "c" represent?

4. What type of a wave is light?

5. What is different about a particle of antimatter, compared to its normal counterpart?

(see the answer key)

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