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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. Why are the fluctuations that quantum physics predicts not observable in everyday life?
(a) The fluctuations only occur in deep space.
(b) Most fluctuations are canceled out by electromagnetic waves, like light.
(c) The human brain filters them out.
(d) On large scales, the effects cancel each other out.

2. What is the photoelectric effect?
(a) When light shines on metals, the metals emit electrons.
(b) Photons can spontaneously decay into electrons in powerful magnetic fields.
(c) Electrons follow quantum paths made by photons.
(d) Electrons and photons only interact if they have the same frequency.

3. In which particle was spin first discovered?
(a) The electron.
(b) The proton.
(c) The neutron.
(d) The photon.

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) If there is a non-zero amplitude, the particle is massless.
(d) Amplitude and mass are not related.

5. Which physicist is credited with discovering that light is composed of particles?
(a) Planck.
(b) Maxwell.
(c) Einstein.
(d) Rutherford.

Short Answer Questions

1. Which of the following is true regarding the mass and spin of a pair of superpartners?

2. Which of the following correctly describes the structure of an atom?

3. According to special relativity, which of the following is true about the passage of time for an observer moving near the speed of light?

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

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

(see the answer key)

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