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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 4 The Uncertainty Principle.

Multiple Choice Questions

1. What theory best describes the singularities of black holes and big bangs?
(a) Theory of relativity.
(b) Theory of everything.
(c) Quantum mechanics.
(d) Molecular engineering.

2. When Hubble discovered other galaxies, in what direction were they moving?
(a) Away from each other.
(b) Towards each other.
(c) Towards earth.
(d) Away from earth.

3. As an observer's velocity comes close to the speed of light, the observer's mass does what?
(a) Decreases to almost nothing.
(b) Stays the same.
(c) Covers more space.
(d) Increases to almost infinity.

4. The general theory of relativity best describes what world?
(a) The world of large objects in space.
(b) The world of large bodies of mass.
(c) The world of high speeds.
(d) The world of galaxies.

5. The distance light travels in an earth year is called what?
(a) Light speed.
(b) Light time.
(c) A light year.
(d) Light distance.

Short Answer Questions

1. Who proposed the idea that there are such things called quanta?

2. Scientists try to create explanations for the way the universe works that always do what?

3. How does Hawking define scientific theory?

4. Why do the theories of quantum mechanics and general relativity need to be unified?

5. Who wrote the introduction?

(see the answer key)

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