4. Where did the men walk during Heisenberg’s first visit?
(a) Faelled Park
(b) Around the gardens
(c) To Tisvilde
(d) To Elsinore

5. 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

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

7. What does Heisenberg claim that Bohr is illustrating as he discusses the aforementioned problem?
(a) Wave mechanics
(b) Schrödinger’s cat
(c) Complementarity
(d) Uncertainty

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

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

10. What was strange about Heisenberg’s attempts to speak English?
(a) He was perfectly fluent
(b) Bohr thought he was trying to speak in Danish
(c) He spoke in German
(d) He didn’t know a word of it

11. In retrospect, what do Heisenberg and Bohr doubt about their first meeting?
(a) What they debated
(b) The language they spoke in
(c) The season
(d) Where they went

12. What did Heisenberg not understand when he had his moment of clarity?
(a) Particle functions
(b) Fission
(c) Wave mechanics
(d) Matrix calculus

13. What was problematic about Heisenberg’s great discovery?
(a) The phenomenon he witnessed could be attributed to another factor
(b) He did not discuss it with Bohr
(c) It was later disproved
(d) He did not understand fission

14. In Act 2, how does Margrethe attempt to cut the tension between the two men?
(a) By offering tea and cake
(b) By changing the subject
(c) By scolding them
(d) By reminding them of the old days

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