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

2. Which of the following is a correct statement, based on the theory of special relativity?
(a) Time is always the same to all observers, but space is not.
(b) Movement can only be measured relative to very massive objects, such as stars.
(c) Time and space are not experienced exactly the same by all observers
(d) Energy only exists relative to mass.

3. According to special relativity, which of the following can move faster than light?
(a) Neutrinos.
(b) Nothing can move faster than light.
(c) Quantum data.
(d) Gravitational waves.

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

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

Short Answer Questions

1. Which of the following correctly describes the structure of an atom?

2. Who discovered the theory of general relativity?

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

5. According to Newton's law of gravity, the strength of the pull between two objects depends on what factors?

(see the answer key)

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