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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. The disease Stephen Hawking has affects what?
(a) His mind.
(b) His emotions.
(c) His ability to reason.
(d) His body.

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

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

4. Who proposed the elliptical orbits of the planets?
(a) Kepler.
(b) Einstein.
(c) Newton.
(d) Galileo.

5. Aristotle thought that the Earth was what?
(a) In orbit around the sun.
(b) Its own galaxy.
(c) Bigger than the sun.
(d) Stationary.

Short Answer Questions

1. For satellites orbiting the earth, time does what in relation to the ground of the earth?

2. Light moves along what sort of lines?

3. The development of what kind of technology depends upon the theory of quantum mechanics?

4. How many miles does light travel in one earth year?

5. Who developed the uncertainty principle?

(see the answer key)

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