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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. What property of electromagnetic waves did Max Planck solve the thermodynamic problem of the oven by discovering?
(a) They can penetrate or "tunnel" through any surface.
(b) Waves are really particles.
(c) They have a minimum energy, proportional to their frequency.
(d) There are infinite numbers of waves, but each has an infinitely small energy.

2. Who first proposed the existence of extra dimensions?
(a) Kaluza.
(b) Einstein.
(c) Hawking.
(d) Maxwell.

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

4. Which of the following correctly describes the structure of an atom?
(a) A single nucleus composed of both electrons and protons.
(b) A cloud of electrons orbiting a dense nucleus.
(c) A cloud of neutrons orbiting a nucleus of other particles.
(d) A cloud of protons, each with an electron orbiting it.

5. According to string theory, why do different particles have different properties?
(a) Their strings are vibrating in different patterns.
(b) Their strings are different lengths.
(c) They have different types of strings.
(d) Their strings do not have the same number of dimensions.

Short Answer Questions

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

2. At what scale of length is quantum geometry necessitated?

3. What property did the double-slit experiment demonstrate that light has?

4. According to string theory, which of the following cannot occur during the collapse of the universe?

5. Which of the following is true regarding experimental confirmation of string theory?

(see the answer key)

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