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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. Who postponed his honeymoon in order to write a scientific paper about the movements of electrons?
(a) Niels Bohr.
(b) Albert Einstein.
(c) James Chadwick.
(d) Ernest Rutherford.

2. Astronomer Edmond Halley approached mathematician Sir Isaac Newton to get his help figuring out why planets:
(a) Vary in size.
(b) Are round.
(c) Spin on their axes.
(d) Orbit the sun in ellipses.

3. When radiation was first discovered, people thought it must have:
(a) High toxicity.
(b) Healthful properties.
(c) Been caused by thunderstorms.
(d) An extraterrestrial origin.

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

5. Which of the following is not a major geological era?
(a) Paleozoic.
(b) Mesozoic.
(c) Precambrian.
(d) Precolumbian.

Short Answer Questions

1. After noticing an unusual phenomenon with uranium salts and a photographic plate, Henri Becquerel asked one of his graduate students to investigate the matter. Who was this student?

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

3. In a span of just 20 years, the number of known moons in the solar system grew from:

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

5. When was Pluto discovered?

(see the answer key)

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