View a FREE sample

This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

Multiple Choice Questions

1. Quantum chromodynamics concerns quantum mechanics and ____.
(a) Gravity.
(b) The electromagnetic force.
(c) The strong force.
(d) The weak force.

2. How can black holes be detected?
(a) By observing the directions of solar winds.
(b) With an ultraviolet-range telescope.
(c) By their effects on objects around them.
(d) By looking for dark gaps in clusters of stars.

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

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

5. What is the Planck mass?
(a) The typical mass created by quantum foam over one nano-second.
(b) The typical mass of a vibrating string.
(c) The average mass gained by a string when it changes to a higher-frequency pattern.
(d) The typical energy of a quark.

Short Answer Questions

1. What are the components of an atomic nucleus?

2. The first version of string theory did not include any particles of _____.

3. Which of the following is not true according to special relativity?

4. What is the photoelectric effect?

5. In quantum mechanics, what is symmetry breaking?

Short Essay Questions

1. Referring to the experiment described in question Short Essay #6, what would the three observers see according to the theory of special relativity?

2. What are some of the difficulties in confirming string theory experimentally?

3. Adam is in his spaceship, at rest, when Ben's ship passes by, moving at nearly the speed of light. Adam observes that Ben's ship seems to be shorter than normal, and the clock on the outside of the ship is running very slowly. When he tells Ben about this, Ben claims that his ship was at rest, and that Adam passed him at nearly the speed of light. Ben also claims to have seen the same unusual problems with Adam's ship; it appeared shorter and its clock was running slowly. Adam and Ben's observations are both perfectly valid. Why?

4. Describe the "equivalence principle", which relates acceleration and gravitational force.

5. Describe and explain the results of the two-slit experiment.

6. What is the relationship between light, electricity, and magnetism?

7. What are strings composed of?

8. Describe Max Planck's solution to the infinite-energy problem.

9. Describe the relationship between the vibration of a string and the particle it represents, including the particle's mass and the tension, wavelength, and amplitude of the string.

10. Describe some of the problems with uniting quantum mechanics and general relativity.

(see the answer keys)

This section contains 1,001 words (approx. 4 pages at 300 words per page) View a FREE sample