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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Seven, The Super in Superstring.

Multiple Choice Questions

1. How can black holes be detected?
(a) By their effects on objects around them.
(b) With an ultraviolet-range telescope.
(c) By observing the directions of solar winds.
(d) By looking for dark gaps in clusters of stars.

2. Which of the following was the first string theory?
(a) Bosonic string theory.
(b) Fermionic string theory.
(c) Lepton theory.
(d) Hadron string theory.

3. According to general relativity, all objects that have mass have what effect on space-time?
(a) They stretch space-time for other very distant objects.
(b) They fold space-time as they move past one another.
(c) They warp space-time around them.
(d) They tear space-time when they travel at near-light speeds.

4. What characteristic did Werner Heisenberg discovered that some features of the universe at very small scales, and some properties of particle?
(a) They are dependant on the velocity of the object being studied.
(b) They can change spontaneously, with no external influence.
(c) They cannot be known with complete precision.
(d) They always increase or decrease by certain increments.

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

Short Answer Questions

1. According to general relativity, the change that an object causes in the fabric of space-time depends directly on _____.

2. Which of the following is correct about the speed at which light moves?

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

4. What is the photoelectric effect?

5. According to special relativity, which of the following is true about the passage of time for an observer moving near the speed of light?

(see the answer key)

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