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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. 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 can sometimes "borrow" energy to move in ways impossible in classical physics.
(d) Particles with high energy can vanish in one location, instantly appearing in another.

2. What is different about a particle of antimatter, compared to its normal counterpart?
(a) Opposite electrical charge.
(b) Complementary spin.
(c) Negative mass.
(d) Zero mass.

3. Which of the following correctly describes the structure of an atom?
(a) A cloud of neutrons orbiting a nucleus of other particles.
(b) A cloud of electrons orbiting a dense nucleus.
(c) A cloud of protons, each with an electron orbiting it.
(d) A single nucleus composed of both electrons and protons.

4. Which of the following did Einstein considered time?
(a) The fifth fundamental force of the universe.
(b) A three-dimensional field.
(c) A physical substance, composed of particles.
(d) A fourth dimension, alongside the three spatial dimensions.

5. Which of the following is not true according to special relativity?
(a) Motion and time are relative; they depend on the observer.
(b) Time does not pass for objects that are perfectly at rest.
(c) All objects move at a constant speed through space-time.
(d) No object can move faster than the speed of light.

Short Answer Questions

1. The smallest possible unit of energy is referred to as _____.

2. Which physicist is credited with discovering that light is composed of particles?

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

4. Who discovered the theory of general relativity?

5. 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?

(see the answer key)

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