View a FREE sample

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

2. What is the quantum, or messenger particle, of the strong force?
(a) The muon.
(b) The hadron.
(c) The gluon.
(d) The baryon.

3. What is the Planck mass?
(a) The typical mass created by quantum foam over one nano-second.
(b) The typical mass of a vibrating string.
(c) The average mass gained by a string when it changes to a higher-frequency pattern.
(d) The typical energy of a quark.

4. How are the amplitude of a string's vibration and the mass of the particle it represents related?
(a) The higher the amplitude, the less massive the particle.
(b) The higher the amplitude, the more massive the particle.
(c) Amplitude and mass are not related.
(d) If there is a non-zero amplitude, the particle is massless.

5. In quantum mechanics, what is symmetry breaking?
(a) When two fused fundamental forces become separated out.
(b) When an asymmetrical matter and anti-matter pair is created.
(c) When the symmetry between a electrical and magnetic field is broken at high energy levels.
(d) The primary reason that the theory is incompatible with general relativity.

Short Answer Questions

1. Which of the following is NOT an actual version of string theory?

2. The first version of string theory did not include any particles of _____.

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

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

5. 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?

(see the answer key)

This section contains 367 words (approx. 2 pages at 300 words per page) View a FREE sample