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

2. In 1903, who won the Nobel Prize in physics for discovering radioactivity?
(a) Marie Curie and Wilhelm Conrad Röntgen.
(b) Marie Curie, Pierre Curie, and Henri Becquerel.
(c) René Just Haüy and Jean Becquerel.
(d) Louise Désirée Lorieux, Jean Becquerel, and Henri Becquerel.

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

4. Which of the following is not part of an atom?
(a) Morton.
(b) Neutron.
(c) Electron.
(d) Proton.

5. Halley believed that once scientists figured out the distance from the sun to the Earth, they could then calculate what?
(a) Weight of Earth.
(b) Distances to other planets.
(c) Distances to distant stars.
(d) Weight of the sun.

Short Answer Questions

1. The Geiger counter is a:

2. Pluto is the first planet to be discovered by an:

3. A hundred years before Einstein's math analyses confirmed the existence of atoms, this self-educated scientist suggested everything is made up of tiny, unchangeable particles:

4. Arranged side by side, how many atoms can fit across the width of a typical human hair?

5. In addition to being a seventeenth-century astronomer, Christopher Wren designed:

(see the answer key)

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