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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Fifteen, Prospects.

Multiple Choice Questions

1. In M-theory, what is a two-dimensional oscillating object is called?
(a) A membrane.
(b) A two-string.
(c) A blob.
(d) A flop.

2. What type of motion cannot be felt or sensed by the moving observer?
(a) Constant-velocity movement.
(b) Accelerating movement.
(c) Slowing or decelerating movement.
(d) Orbital movement around a star.

3. In what important way does string theory affect the cosmological model of the big bang?
(a) The big bang created strings, not particles.
(b) The universe is infinite, but has no boundaries.
(c) The universe started at a certain minimum size.
(d) The big bang could have created multiple universes.

4. According to Greene, what is the underlying principle of special relativity?
(a) The speed of light is constant for all observers.
(b) An observer's motion is important when measuring speed and time.
(c) Nothing can move faster than the speed of light.
(d) Time, length, and mass all change as an object approaches the speed of light.

5. What are the characteristics of a wave?
(a) Frequency, polarity, and wavelength.
(b) Energy level, polarity, and speed.
(c) Amplitude and energy.
(d) Frequency, wavelength, and amplitude.

Short Answer Questions

1. What type of a wave is light?

2. The number of family groups corresponds to a feature of the Calabi-Yau shape. What is this feature?

3. Which of the following is a correct statement, based on the theory of special relativity?

4. 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?

5. When the distance between two objects is doubled, what happens to the strength of the gravitational pull between them?

(see the answer key)

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