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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 3, Of Warps and Ripples.

Multiple Choice Questions

1. According to special relativity, which of the following is true about the passage of time for an observer moving near the speed of light?
(a) Time would pass slowly compared to an observer at rest.
(b) Time would pass very quickly compared to an observer at rest.
(c) No time would pass at all.
(d) The passage of time could not be predicted.

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

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

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

5. What are the components of an atomic nucleus?
(a) Photons and electrons.
(b) Electrons and neutrons.
(c) Protons and electrons.
(d) Protons and neutrons.

Short Answer Questions

1. What would an outside observer notice about an object moving near the speed of light?

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

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

4. What is different about a particle of antimatter, compared to its normal counterpart?

5. In 1968 it was discovered that protons and neutrons are composed of which type of particle?

(see the answer key)

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