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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. Einstein's equation, E=mc^2, states that which of the following are equivalent?
(a) Electricity and magnetism.
(b) Energy and light.
(c) Energy and mass.
(d) Light and magnetism.

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 _____.
(a) The oven can only store energy if it has no mass.
(b) The oven contains infinite energy.
(c) The oven contains no energy.
(d) The oven can store more energy the smaller it is.

3. What would an outside observer notice about an object moving near the speed of light?
(a) It would appear vastly larger than it would at rest.
(b) It would be shorted in the direction of its movement.
(c) It would not be observable under any circumstances.
(d) It would appear to move slower near a gravitational field.

4. Black holes are dense and massive cosmological bodies. What unique distinction do they have?
(a) They are the only types of stars that can produce uranium and heavier elements.
(b) Neutrinos always flow towards them.
(c) Light cannot escape their gravitational well.
(d) They are the only objects that emit gamma rays.

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

Short Answer Questions

1. Which of the following did Einstein considered time?

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

3. What are the components of an atomic nucleus?

4. According to Newton's law of gravity, the strength of the pull between two objects depends on what factors?

5. According to general relativity, all objects that have mass have what effect on space-time?

(see the answer key)

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