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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. How did Bohr react to the discovery mentioned in question #82?
(a) He believed in it, but is now skeptical
(b) He still does not believe it
(c) He was unconditionally supportive
(d) He was skeptical, but now believes in it

2. What is Bohr’s criticism of Heisenberg’s thought process?
(a) He only cares about practicalities
(b) He doesn’t care about the political repercussions of his work
(c) He only cares about math
(d) He doesn’t care about science

3. What does the uncertainty principle pertain to?
(a) The quark
(b) The electron
(c) The proton
(d) The atom

4. What does Einstein’s work do for Bohr?
(a) Confuses him
(b) Resolves his doubts
(c) Confirms his theory
(d) Makes him question his work

5. Where did Heisenberg sleep immediately after the war?
(a) In Bohr’s home
(b) In a new flat
(c) In a charming house
(d) On straw

6. What does Margrethe say about Heisenberg and uncertainty?
(a) He will never understand it
(b) It doesn’t make any sense
(c) He misunderstood it in the past
(d) He has an affinity for it

7. What does Heisenberg think is the last variable in the quantum state of the atom?
(a) Its location
(b) Its mass
(c) Its size
(d) Its spin

8. What does Heisenberg say about the years they worked together?
(a) That he longed to escape
(b) That they were amazing
(c) That they felt long
(d) That it was always winter

9. Where did Bohr work out complementarity?
(a) In Norway
(b) In Denmark
(c) In Germany
(d) In Finland

10. What critical mass did Heisenberg think was needed for the bomb?
(a) One ton
(b) One gram
(c) 26,000 tons
(d) Fifty kilograms

11. What season was it when Heisenberg first visited Copenhagen?
(a) Spring
(b) Fall
(c) Winter
(d) Summer

12. What is Bohr’s opinion of Heisenberg’s resolution to his problem?
(a) He thinks it is insufficient
(b) He did not notice it
(c) He thinks it goes overboard
(d) He is confused by it

13. In Heisenberg’s illustration of his theory, what or who is an electron?
(a) Bohr
(b) A buoy
(c) Blood
(d) Margrethe

14. What was Heisenberg’s main scientific achievement?
(a) His uncertainty paper
(b) A series of mathematical proofs
(c) His work on the atom with Bohr
(d) His wave theorem

15. How did Bohr almost kill Kramers?
(a) With a pistol
(b) In a duel
(c) With a bomb
(d) With a mine

Short Answer Questions

1. How old was Heisenberg when he took his chair at Leipzig?

2. Who made peace between Heisenberg and Bohr?

3. Who was with Bohr when he worked out complementarity?

4. Given Bohr’s conception of their work, what does Margrethe thus claim that Heisenberg can’t see?

5. Who is with Heisenberg when he has his moment of clarity?

(see the answer keys)

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