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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 2, The Shape of Time.

Multiple Choice Questions

1. What theories implied that supersymmetric field particles should have superpartners?
(a) Supergravity theories.
(b) Symmetric movement theories.
(c) Supertheoric partner theories.
(d) Particle accelerator theories.

2. What is intuitive to think about the "ground state" or stationary state of an object?
(a) This object would have multiple energies.
(b) This object would have two energies.
(c) This object would thrive in a black hole.
(d) This object would have zero energy.

3. What does Hawking resist believing in?
(a) One dimension.
(b) Ten dimensions.
(c) Never-ending dimensions.
(d) Extra dimensions.

4. What do models based on imaginary time make?
(a) Innumerable falsities.
(b) False predictions.
(c) Blanket superstitions.
(d) Good predictions.

5. What do string theories most notably lack?
(a) Proofs.
(b) Infinities.
(c) Numbers.
(d) Dimensions.

Short Answer Questions

1. What does time not have apart from the universe?

2. What did this theory of curved spaces help Einstein and Marcel Grossman to do?

3. What did Einstein wish people to abandon concerning time?

4. What was discovered in the 1970s that revealed a natural physical mechanism?

5. Dirac's discoveries were difficult to reconcile with what?

(see the answer key)

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