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

2. Richard Feynman's "sum over paths" theory states that in the double-slit experiment, an electron behaves in what way?
(a) It follows all possible paths at the same time.
(b) The sum of all possible frequencies describes the frequency of the final path taken.
(c) It follows the same path every time.
(d) It follows a unique path every time.

3. The smallest possible unit of energy is referred to as _____.
(a) A muon.
(b) A quantum.
(c) A quark.
(d) A photon.

4. What is the result when a particle of matter and a particle of antimatter are brought into contact?
(a) A theoretically unlimited amount of energy is released.
(b) A strange quark is formed.
(c) Energy is released and both particles are destroyed.
(d) A black hole is formed.

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

Short Answer Questions

1. What is the shape of all particles, at the smallest possible level, according to string theory?

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

3. 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?

4. Black holes are dense and massive cosmological bodies. What unique distinction do they have?

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

(see the answer key)

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