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This quiz consists of 5 multiple choice and 5 short answer questions through "On the Cliff" – "High Concentration".

Multiple Choice Questions

1. Why did Winston Churchill and Franklin Roosevelt agree to combine their resources and work on atomic weapons in the United States?
(a) Because Britain was inundated with Soviet spies.
(b) Because Britain was under attack from German bombers.
(c) Because Britain was about to ally with Germany.
(d) Because the United States had the advantage of top scientists.

2. How many neutrons are contained in the nucleus of a normal hydrogen atom?
(a) 4.
(b) 0.
(c) 2.
(d) 1.

3. On what date was Albert Einstein's letter to the U.S. President warning of Germany's development of an atomic bomb delivered?
(a) April 22, 1938.
(b) October 11, 1939.
(c) November 1, 1939.
(d) September 1, 1939.

4. Where did Harry Gold live when he was questioned by the FBI in the Prologue?
(a) New York, New York.
(b) Chicago, Illinois.
(c) Philadelphia, Pennsylvania.
(d) San Diego, California.

5. Where did Semyon Semyonov earn an engineering degree?
(a) The University of California, Berkeley.
(b) The University of New York.
(c) Harvard University.
(d) The Massachusetts Institute of Technology.

Short Answer Questions

1. Where was physicist Neils Bohr from?

2. How old was Harry Gold when World War II began?

3. What date is described in the Prologue of Bomb?

4. Who informed Robert Oppenheimer about the German chemists finding the uranium could be split, according to the author in "The U Business"?

5. On what date did General Groves first meet Robert Oppenheimer?

(see the answer key)

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