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

Multiple Choice Questions

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

2. Who was with Bohr when he worked out complementarity?
(a) Margrethe
(b) Heisenberg
(c) A team of researchers
(d) Nobody

3. What does Margrethe think that Heisenberg will never know?
(a) The reason he came to Copenhagen
(b) Whom he really loves
(c) What is in his heart
(d) The reason he left Copenhagen

4. What does Heisenberg still insist works?
(a) Uncertainty
(b) Schrödinger’s cat
(c) Complementarity
(d) The Copenhagen Interpretation

5. What aspect of Bohr and Heisenberg’s memories of their work does Margrethe contest?
(a) Its mechanics
(b) Its importance
(c) Its timing
(d) Its collaborative aspects

6. From whose work does Heisenberg and Bohr’s own work stem?
(a) Nobody; it is entirely new
(b) Kramers’
(c) Schrödinger’s
(d) Einstein’s

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

8. How did Heisenberg feel about Kramers?
(a) Guilty
(b) Friendly
(c) Jealous
(d) Ignorant

9. When was the first time Heisenberg came to Copenhagen?
(a) 1921
(b) 1941
(c) 1924
(d) 1938

10. What happened to Heisenberg immediately after the war?
(a) He got divorced
(b) He died
(c) He came back to see Bohr
(d) He was in charge of German science

11. Why did Heisenberg leave Bohr?
(a) Heisenberg no longer respected Bohr’s intelligence
(b) To teach in Germany
(c) Heisenberg fell in love
(d) They had an argument

12. What example does Heisenberg use to illustrate his theory?
(a) Copenhagen
(b) Skiing
(c) Bohr
(d) Sailing

13. What language does Heisenberg want Bohr to speak?
(a) German
(b) Plain language
(c) English
(d) Scientific notation

14. What is Bohr’s conception of the work that the two scientists did together in the 1920s?
(a) They made science accessible to all
(b) They proved the existence of God
(c) They put man at the center of the universe
(d) They solved the mystery of the atom

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

Short Answer Questions

1. Who made peace between Heisenberg and Bohr?

2. What thought process does Bohr love that Heisenberg does not?

3. What is notable about Heisenberg’s accepting the chair at Leipzig?

4. How old was Bohr when Heisenberg first visited Copenhagen?

5. What does Heisenberg hesitate to accept scientifically?

(see the answer keys)

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