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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. The first version of string theory did not include any particles of _____.
(a) Fermions.
(b) Bosons.
(c) Gravitons.
(d) Messenger particles.

2. Which of the following is true regarding the mass and spin of a pair of superpartners?
(a) Their masses and spins are not related.
(b) They have the same mass, and their spins differ by 1/2.
(c) They have unrelated masses, and their spins differ by 1.
(d) They have the same mass and spin.

3. What are the components of an atomic nucleus?
(a) Photons and electrons.
(b) Electrons and neutrons.
(c) Protons and neutrons.
(d) Protons and electrons.

4. What property did the double-slit experiment demonstrate that light has?
(a) It has an infinite number of possible frequencies.
(b) It behaves as a wave.
(c) It can be bent by gravity fields.
(d) It has a finite energy level at all frequencies.

5. Which of the following is NOT an actual version of string theory?
(a) Fermionic type IV theory.
(b) Type I theory.
(c) Heterotic type O(32) theory.
(d) Type IIA theory.

Short Answer Questions

1. Which of the following was the first string theory?

2. Which of the following is one of the major problems in using both quantum physics and general relativity?

3. Which of the following correctly describes the structure of an atom?

4. Which of the following did Einstein considered time?

5. How many dimensions did the tiny objects involved in the original statement of string theory have?

Short Essay Questions

1. What are super-partners?

2. Describe and explain the results of the two-slit experiment.

3. Describe some of the problems with uniting quantum mechanics and general relativity.

4. Describe Max Planck's solution to the infinite-energy problem.

5. What is the relationship between wavelength, frequency, and a wave's minimum energy?

6. What are some of the difficulties in confirming string theory experimentally?

7. Describe the structure of an atom.

8. Referring to the experiment described in question Short Essay #6, what would the three observers see according to the theory of special relativity?

9. Suppose that two objects are exerting a gravitational pull on each other, when one suddenly moves a large distance further away from the other object. Describe the impact of this event according to general relativity.

10. State Newton's law of gravity.

(see the answer keys)

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