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Name: _________________________ | Period: ___________________ |
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. The discovery of the tearing of space-time came from cooperation between experts in physics and _____.
(a) Astronomy.
(b) Mathematics.
(c) Cosmology.
(d) Engineering.
2. Which one of the following do physicists believe occurs at the central point of a black hole?
(a) A "white hole" is formed.
(b) Space-time becomes inverted.
(c) Space-time is torn.
(d) An infinite-time flop-transition occurs.
3. Which of the following is not true according to special relativity?
(a) All objects move at a constant speed through space-time.
(b) No object can move faster than the speed of light.
(c) Motion and time are relative; they depend on the observer.
(d) Time does not pass for objects that are perfectly at rest.
4. How can black holes be detected?
(a) With an ultraviolet-range telescope.
(b) By their effects on objects around them.
(c) By looking for dark gaps in clusters of stars.
(d) By observing the directions of solar winds.
5. What property of electromagnetic waves did Max Planck solve the thermodynamic problem of the oven by discovering?
(a) Waves are really particles.
(b) They can penetrate or "tunnel" through any surface.
(c) There are infinite numbers of waves, but each has an infinitely small energy.
(d) They have a minimum energy, proportional to their frequency.
Short Answer Questions
1. 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?
2. How are black holes are widely believed to have originated?
3. Which of the following best describes a wormhole?
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. How many total dimensions are required by string theory?
This section contains 392 words (approx. 2 pages at 300 words per page) |
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