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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. What is the fundamental force responsible for keeping the nucleus of an atom "glued" together?
(a) Potential electrical force.
(b) Quantum-tunneling force.
(c) Gravitational force.
(d) The nuclear-strong force.

2. Which of the following is a correct statement, based on the theory of special relativity?
(a) Time and space are not experienced exactly the same by all observers
(b) Time is always the same to all observers, but space is not.
(c) Energy only exists relative to mass.
(d) Movement can only be measured relative to very massive objects, such as stars.

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

4. What are the components of an atomic nucleus?
(a) Photons and electrons.
(b) Protons and electrons.
(c) Protons and neutrons.
(d) Electrons and neutrons.

5. Who discovered the theory of general relativity?
(a) Isaac Newton.
(b) Max Planck.
(c) Albert Einstein.
(d) Richard Feynman.

Short Answer Questions

1. What characteristic of the string determines the properties of the particle it represents?

2. What type of a wave is light?

3. Richard Feynman's "sum over paths" theory states that in the double-slit experiment, an electron behaves in what way?

4. If a clock were accelerated to nearly the speed of light for a year's time, which of the following would be true of its reading at the end of that time?

5. According to special relativity, which of the following can move faster than light?

(see the answer key)

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