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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Seven, The Super in Superstring.

Multiple Choice Questions

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

2. What is the shape of all particles, at the smallest possible level, according to string theory?
(a) A tangled ball of thin filament.
(b) A one-dimension loop.
(c) An infinitely long string.
(d) A thread of thin strings.

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

4. What characteristic did Werner Heisenberg discovered that some features of the universe at very small scales, and some properties of particle?
(a) They are dependant on the velocity of the object being studied.
(b) They always increase or decrease by certain increments.
(c) They can change spontaneously, with no external influence.
(d) They cannot be known with complete precision.

5. Black holes are dense and massive cosmological bodies. What unique distinction do they have?
(a) They are the only objects that emit gamma rays.
(b) Light cannot escape their gravitational well.
(c) Neutrinos always flow towards them.
(d) They are the only types of stars that can produce uranium and heavier elements.

Short Answer Questions

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

2. In 1968 it was discovered that protons and neutrons are composed of which type of particle?

3. According to general relativity, which of the following is said to warp or bend space-time?

4. Quantum electroweak theory concerns quantum mechanics and _____.

5. Which of the following qualities must a physical law have in order to be considered symmetric?

(see the answer key)

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