View a FREE sample

This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Thirteen, Black Holes, A String/M Theory Perspective.

Multiple Choice Questions

1. In M-theory, what role does duality play?
(a) It allows space-tearing flop transitions to extend into extra dimensions.
(b) It shows that the five theories are connected.
(c) It links electromagnetism and gravity.
(d) It helps to incorporate general relativity.

2. Which of the following is true regarding experimental evidence for super particles?
(a) They have been observed in multiple experiments.
(b) They have been observed for a long time, and have only recently been identified.
(c) They cannot be observed experimentally.
(d) They have not been observed.

3. Which of the following best describes a fermion?
(a) A messenger particle for a force.
(b) The supersymmetric version of a proton.
(c) A particle of matter.
(d) The super-partner of a proton.

4. When the distance between two objects is doubled, what happens to the strength of the gravitational pull between them?
(a) It quadruples.
(b) It diminishes to one-half its original value.
(c) It diminishes to one-fourth its original value.
(d) It is unchanged.

5. What is quantum foam?
(a) The rapidly changing spatial distortions at the Planck length.
(b) Particles that are scattered from their normal positions by quantum interference.
(c) The mixture of short-lived particles observed after a matter and anti-matter collision.
(d) The faint material ejected by black holes.

Short Answer Questions

1. According to Einstein's theory of general relativity, 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?

2. Which of the following best describes a wormhole?

3. What spin do all particles of matter have?

4. What is a string's winding number?

5. Which of the following is true regarding the amount of visible matter in the universe compared to the amount of matter required to cause collapse of the universe?

(see the answer key)

This section contains 408 words (approx. 2 pages at 300 words per page) View a FREE sample