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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. Regarding mirror-symmetry, Greene's work proved that _____.
(a) It is invalid.
(b) It is a part of string theory.
(c) It occurs only below the Planck length.
(d) It is only valid under special circumstances.

2. The horizon problem is the contradiction that which of the following properties of the universe shouldn't be uniform, but is?
(a) The electroweak field depth.
(b) The gravitational constant.
(c) The cosmological constant.
(d) The cosmic background radiation.

3. Which of the following is true regarding experimental evidence for super particles?
(a) They have not been observed.
(b) They cannot be observed experimentally.
(c) They have been observed for a long time, and have only recently been identified.
(d) They have been observed in multiple experiments.

4. What is a virtual string pair?
(a) A pair of strings created purely in the curled-up dimensions.
(b) A short-lived pair of strings resulting from a normal string splitting momentarily.
(c) A pair of strings that cancel each other out and therefore do no correspond to real particles.
(d) A quantum-entangled pair of unwound, massless strings.

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

Short Answer Questions

1. Kaluza's theory suggested that electromagnetism was carried by ripples in _____.

2. Which of the following is true regarding the force of gravity in string theory?

3. What is one possible way that the three dimensions we observe could have been "stretched out"?

4. Who provided the computer programming to process the results of the Morrison-Greene experiment?

5. Tears in space-time are technically termed _____.

Short Essay Questions

1. What is mirror symmetry, and what is its relevance to string theory?

2. What is the origin of M-theory, and what are its basic characteristics?

3. Describe Kaluza-Klein theory.

4. What is a wormhole, and how is it formed?

5. Describe the phenomenon of winding in string theory.

6. Describe the entire process of a conifold transition.

7. Describe the nature and importance of the procedure discovered by Yau and Tian.

8. What is the string-coupling constant, and why is it important?

9. What is the relationship between the elementary particles and the Calabi-Yau space?

10. What is the relative composition of matter in the universe?

(see the answer keys)

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