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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. Which of the following is not true according to special relativity?
(a) Time does not pass for objects that are perfectly at rest.
(b) Motion and time are relative; they depend on the observer.
(c) No object can move faster than the speed of light.
(d) All objects move at a constant speed through space-time.

2. Which of the following did Einstein considered time?
(a) A fourth dimension, alongside the three spatial dimensions.
(b) The fifth fundamental force of the universe.
(c) A three-dimensional field.
(d) A physical substance, composed of particles.

3. What is the fundamental particle, the smallest possible bundle of energy, for the electromagnetic force?
(a) The gluon.
(b) The electron.
(c) The neutrino.
(d) The photon.

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

5. 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?
(a) Its reading would be random and meaningless.
(b) It would be more than one year.
(c) It would be less than one year.
(d) It would be exactly equal to one year.

Short Answer Questions

1. What is the fundamental force responsible for keeping the nucleus of an atom "glued" together?

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

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

4. Edwin Hubble used Einstein's theories to show that the fabric of the universe _____.

5. When the distance between two objects is doubled, what happens to the strength of the gravitational pull between them?

(see the answer key)

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