View a FREE sample

This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Seven, The Super in Superstring.

Multiple Choice Questions

1. According to general relativity, all objects that have mass have what effect on space-time?
(a) They tear space-time when they travel at near-light speeds.
(b) They fold space-time as they move past one another.
(c) They stretch space-time for other very distant objects.
(d) They warp space-time around them.

2. Which of the following is closest to the Planck length?
(a) A millionth of a billionth of a billionth of a billionth of a centimeter.
(b) A thousandth of a centimeter.
(c) A millionth of a centimeter.
(d) A billionth of a billionth of a centimeter.

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

4. Which of the following is true of a particle's spin?
(a) It increases with each interaction with a particle of greater spin.
(b) It is constant for that particle.
(c) It depends on the strength of the local magnetic field.
(d) It changes depending on the particle's energy.

5. Which of the following qualities must a physical law have in order to be considered symmetric?
(a) It does not depend on where or when it is applied.
(b) It works regardless of the spin of the particles involved.
(c) It is valid for both matter and energy.
(d) It is valid for both matter and anti-matter.

Short Answer Questions

1. In the 1800s, James Clerk Maxwell used a new mathematical framework to unite _____.

2. Edwin Hubble used Einstein's theories to show that the fabric of the universe _____.

3. Which of the following best describes a fermion?

4. 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?

5. Which of the following is one of the major problems in using both quantum physics and general relativity?

(see the answer key)

This section contains 438 words (approx. 2 pages at 300 words per page) View a FREE sample