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

2. 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:
(a) Ernest Rutherford.
(b) John Dalton.
(c) George Hadley.
(d) Hans Geiger.

3. Astronomer Edmond Halley believed that the distance from the Earth to the sun could be deduced from the:
(a) Transits of Venus.
(b) Distance to the moon.
(c) Position of Mars.
(d) Size of solar flares.

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

5. The Geiger counter is a:
(a) Voltage meter.
(b) Molecular microscope.
(c) Magnetic imager.
(d) Radioactivity detector.

Short Answer Questions

1. According to James Ussher, an Archbishop of the Church of Ireland who was alive in the 1600s, Earth had been created:

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

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

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

5. How far away is Proxima Centauri from Earth?

(see the answer key)

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