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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 4, Microscopic Weirdness.

Multiple Choice Questions

1. What property did the double-slit experiment demonstrate that light has?
(a) It behaves as a wave.
(b) It has a finite energy level at all frequencies.
(c) It can be bent by gravity fields.
(d) It has an infinite number of possible frequencies.

2. What characteristic of the string determines the properties of the particle it represents?
(a) Its mass.
(b) Its length.
(c) The number of other strings with which it is threaded.
(d) Its frequency of vibration.

3. Which physicist is credited with discovering that light is composed of particles?
(a) Einstein.
(b) Rutherford.
(c) Maxwell.
(d) Planck.

4. What would an outside observer notice about an object moving near the speed of light?
(a) It would appear vastly larger than it would at rest.
(b) It would not be observable under any circumstances.
(c) It would appear to move slower near a gravitational field.
(d) It would be shorted in the direction of its movement.

5. 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?
(a) Near the speed of light, faster for lighter objects.
(b) At exactly the speed of light.
(c) Near the speed of light, faster for more massive objects.
(d) Instantaneously.

Short Answer Questions

1. What rule did Max Planck discover the electromagnetic waves bounded in a container, such as an oven, must follow?

2. The smallest possible unit of energy is referred to as _____.

3. What are the characteristics of a wave?

4. What type of motion cannot be felt or sensed by the moving observer?

5. According to special relativity, which of the following can move faster than light?

(see the answer key)

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