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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. Which of the following is correct about the speed at which light moves?
(a) It moves at a constant speed for all observers.
(b) It moves faster at higher energy levels.
(c) It moves at a constant speed only near a gravitational field.
(d) Its speed depends on the observer.

2. According to Newton's theory of gravity, 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) Instantaneously.
(c) Near the speed of light, faster for lighter objects.
(d) At exactly the speed of light.

3. Which of the follow best describes a boson?
(a) A particle of energy, a messenger particle for a force.
(b) The super-partner of a proton.
(c) A particle of matter.
(d) The supersymmetric version of a proton.

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

5. In the 1800s, James Clerk Maxwell used a new mathematical framework to unite _____.
(a) Magnetism and gravity.
(b) Magnetism and light.
(c) Nuclear forces and gravity.
(d) Electricity and magnetism.

Short Answer Questions

1. In Einstein's famous equation, E=mc^2, what does "c" represent?

2. Quantum chromodynamics concerns quantum mechanics and ____.

3. What is quantum foam?

4. How are the wavelength of a string's vibration and the mass of the particle it represents related?

5. What characteristic did Werner Heisenberg discovered that some features of the universe at very small scales, and some properties of particle?

(see the answer key)

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