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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 4, Microscopic Weirdness.

Multiple Choice Questions

1. Two theories form the basis of modern physics, but are incompatible with one another. String theory attempts to reconcile these fields. What are these two theories?
(a) General relativity and special relativity.
(b) General relativity and quantum mechanics.
(c) Gravity and general relativity.
(d) Quantum mechanics and the photoelectric effect.

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

3. Which of the following accurately describes the phenomenon of "quantum tunneling"?
(a) Some particles are linked together, no matter how much space separates them.
(b) High-energy waves can penetrate the fabric of space-time for very short periods of time.
(c) Particles with high energy can vanish in one location, instantly appearing in another.
(d) Particles can sometimes "borrow" energy to move in ways impossible in classical physics.

4. What are the characteristics of a wave?
(a) Frequency, wavelength, and amplitude.
(b) Energy level, polarity, and speed.
(c) Frequency, polarity, and wavelength.
(d) Amplitude and energy.

5. General relativity is incompatible with _____.
(a) The photoelectric effect.
(b) The big bang theory.
(c) State theory.
(d) Quantum mechanics.

Short Answer Questions

1. According to general relativity, the change that an object causes in the fabric of space-time depends directly on _____.

2. Quantum physics began with the study of the energy inside a heated, closed container, such as an oven. The problem with theories at the time was that they predicted that _____.

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

4. What is the fundamental particle, the smallest possible bundle of energy, for the electromagnetic force?

5. What type of motion cannot be felt or sensed by the moving observer?

(see the answer key)

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