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

Multiple Choice Questions

1. Which of the following is true regarding our current knowledge of the Calabi-Yau space?
(a) Its shape is completely known and defined.
(b) Its shape is not fully known.
(c) Physicists and mathematicians disagree about its shape.
(d) Its shape is totally unknown.

2. In M-theory, what is a two-dimensional oscillating object is called?
(a) A flop.
(b) A membrane.
(c) A blob.
(d) A two-string.

3. Which of the following most accurately describes the state of the universe?
(a) It is mostly static.
(b) It is about to begin contracting.
(c) It is expanding.
(d) It is collapsing.

4. What is the traditional method of testing theories in physics?
(a) Consensus.
(b) Debate.
(c) Mathematical proof.
(d) Experimentation.

5. Which of the following is true regarding tears in space time occurring in normal three-dimensional space?
(a) It is unknown whether or not they can occur.
(b) Such tears have been observed in particle accelerators.
(c) It has been proven that they can occur.
(d) They cannot occur.

6. In what important way does string theory affect the cosmological model of the big bang?
(a) The universe is infinite, but has no boundaries.
(b) The big bang created strings, not particles.
(c) The big bang could have created multiple universes.
(d) The universe started at a certain minimum size.

7. Who posited the existence of M-theory?
(a) Witten.
(b) Greene.
(c) Brandenberger.
(d) Plesser.

8. Who provided the computer programming to process the results of the Morrison-Greene experiment?
(a) Tian.
(b) Yau.
(c) Aspinwall.
(d) Rutherford.

9. What is a string's winding number?
(a) The ratio of its Planck tension to its tension at rest.
(b) The number of times it is wrapped around a circular dimension.
(c) The number of dimensions it vibrations through.
(d) The number of other strings it is threaded with.

10. In ratios of what number do winding energies come?
(a) Two.
(b) Ten.
(c) Six.
(d) Any whole number.

11. What did Stephen Hawking prove regarding black holes?
(a) The emit radiation.
(b) They have electrical charge.
(c) They are the most massive objects in the universe.
(d) Light cannot escape from them.

12. How does the number of extra "curled up" dimensions affect the vibration of strings?
(a) String vibration is not affected by additional dimensions.
(b) More dimensions allow for string with length in more than one direction.
(c) More dimensions provide more ways to vibrate.
(d) More dimensions require more energy for the same vibrational pattern.

13. Which team of researchers discovered the process for altering Calabi-Yau spaces by rupturing them?
(a) Greene and Morrison.
(b) Hawking and Fermi.
(c) Bohr and Feynman.
(d) Yau and Tian.

14. Kaluza's theory suggested that electromagnetism was carried by ripples in _____.
(a) The three normal space dimensions.
(b) The time-dimension only.
(c) All dimensions of both space and time.
(d) The "curled up" dimensions.

15. Kaluza-Klein theory units which two fundamental forces?
(a) Gravity and the strong force.
(b) Electromagnetism and the weak force.
(c) The strong force and the weak force.
(d) Gravity and electromagnetism.

Short Answer Questions

1. Which of the following is true regarding the tearing of space-time according to general relativity?

2. What distinction does dark matter have?

3. According to string theory, which of the following cannot occur during the collapse of the universe?

4. By what factor is the minimum mass of a wrapped string in determined?

5. What is M-theory?

(see the answer keys)

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