1. 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?
(a) It would be more than one year.
(b) It would be less than one year.
(c) Its reading would be random and meaningless.
(d) It would be exactly equal to one year.

2. Which of the following is one of the major problems in using both quantum physics and general relativity?
(a) General relativity is time-dependant, quantum physics is a steady-state theory.
(b) At small scales, quantum physics predicts uncertainty, but general relativity requires certainty.
(c) Quantum physics predicts that all particles are massless.
(d) General relativity is a wave theory, but quantum physics is a particle theory.

3. What is the Planck tension?
(a) The pull between strings at the Planck length.
(b) The attraction felt by a string through the strong force.
(c) The typical tension in a string.
(d) The vacuum-energy of a matter and anti-matter string pair.

4. 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 no energy.
(c) The oven can store more energy the smaller it is.
(d) The oven contains infinite energy.

5. Which of the following accurately describes the phenomenon of "quantum tunneling"?
(a) Particles can sometimes "borrow" energy to move in ways impossible in classical physics.
(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) Some particles are linked together, no matter how much space separates them.