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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. According to general relativity, which of the following is said to warp or bend space-time?
(a) Accelerated motion and orbital motion.
(b) Accelerated motion and gravity.
(c) Constant, relativistic speed motion.
(d) Gravity and electromagnetic fields.

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

3. Which of the following is not true according to special relativity?
(a) Motion and time are relative; they depend on the observer.
(b) Time does not pass for objects that are perfectly at rest.
(c) All objects move at a constant speed through space-time.
(d) No object can move faster than the speed of light.

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

5. Which of the following is a correct statement, based on the theory of special relativity?
(a) Time is always the same to all observers, but space is not.
(b) Energy only exists relative to mass.
(c) Movement can only be measured relative to very massive objects, such as stars.
(d) Time and space are not experienced exactly the same by all observers

Short Answer Questions

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

2. Which of the following is not one of the four fundamental forces of the universe?

3. Which of the following did Einstein considered time?

4. What is the fundamental force responsible for keeping the nucleus of an atom "glued" together?

5. According to Newton's theory of gravity, if two objects have a gravitational pull on one another, and one changes its mass or distance from the other, how quickly does the effect of this change travel to the other object?

(see the answer key)

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