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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Ten, Quantum Geometry.

Multiple Choice Questions

1. According to Newton's law of gravity, the strength of the pull between two objects depends on what factors?
(a) The distance between them and their average atomic numbers.
(b) Their masses and potential energies.
(c) Their masses and the distance between them.
(d) Their densities and the strength of the gravitational field they occupy.

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

3. What is the quantum, or messenger particle, of gravity?
(a) The Calabi-Yau particle.
(b) The Einstein boson.
(c) The graviton.
(d) The gravino.

4. According to Einstein's theory of general relativity, if two objects have a gravitational pull on one another, and one changes its mass or distance from the other, how quickly does the effect of this change travel to the other object?
(a) Near the speed of light, faster for more massive objects.
(b) Near the speed of light, faster for lighter objects.
(c) At exactly the speed of light.
(d) Instantaneously.

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

Short Answer Questions

1. What type of a wave is light?

2. Black holes are dense and massive cosmological bodies. What unique distinction do they have?

3. What is the Planck mass?

4. Which of the following is true regarding our current knowledge of the Calabi-Yau space?

5. In which particle was spin first discovered?

(see the answer key)

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