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This quiz consists of 5 multiple choice and 5 short answer questions through Part 3, Chapter 9.

Multiple Choice Questions

1. Sir Isaac Newton wrote "Mathematical Principles of Natural Philosophy," which explains his laws of what?
(a) Motion and gravity.
(b) Quantum physics.
(c) Electromagnetic interference.
(d) Attraction.

2. What components were central to the apparatus that Henry Cavendish used to determine the density of Earth?
(a) Weights, counter-weights, and pendulums.
(b) Boiling water, a tub, and a barrel.
(c) A burner, gases, and switches.
(d) Chutes and slides.

3. When was Pluto discovered?
(a) 1892.
(b) 1957.
(c) 1930.
(d) 1876.

4. Pluto is the first planet to be discovered by an:
(a) Australian.
(b) American.
(c) Argentine.
(d) Austrian.

5. According to the Caltech physicist Richard Feynman, the most important discovery ever made is what?
(a) Electricity.
(b) Atoms.
(c) Penicillin.
(d) Pasteurization.

Short Answer Questions

1. When radiation was first discovered, people thought it must have:

2. When radiation was first discovered, it was sometimes added to:

3. When French physicist Henri Becquerel accidentally left a packet of uranium salts on a photographic plate, what happened?

4. Astronomer Edmond Halley approached mathematician Sir Isaac Newton to get his help figuring out why planets:

5. The fact that Pluto has a moon was not discovered until:

(see the answer key)

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