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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Thirteen, Black Holes, A String/M Theory Perspective.

Multiple Choice Questions

1. What characteristic did Werner Heisenberg discovered that some features of the universe at very small scales, and some properties of particle?
(a) They always increase or decrease by certain increments.
(b) They cannot be known with complete precision.
(c) They can change spontaneously, with no external influence.
(d) They are dependant on the velocity of the object being studied.

2. In M-theory, what is a two-dimensional oscillating object is called?
(a) A blob.
(b) A membrane.
(c) A flop.
(d) A two-string.

3. How are black holes are widely believed to have originated?
(a) From the collision of stars.
(b) From the collapse of a star.
(c) Spontaneously from quantum foam.
(d) Through the phase transition of normal elementary particles.

4. There are many possible Calabi-Yau spaces, but only shapes with which of the following characteristics are considered real possibilities?
(a) Those that solve the perturbation theory.
(b) Those that have no time-dimensions.
(c) Those that meet the vibration requirements and have an appropriate number of dimensions.
(d) Those that unify the four forces and have no extended dimensions.

5. The discovery of the tearing of space-time came from cooperation between experts in physics and _____.
(a) Engineering.
(b) Mathematics.
(c) Cosmology.
(d) Astronomy.

Short Answer Questions

1. What is the traditional method of testing theories in physics?

2. The extra dimension or dimensions in M-theory are needed in order to incorporate _____.

3. How does the number of extra "curled up" dimensions affect the vibration of strings?

4. According to string theory, why do different particles have different properties?

5. What property of both black holes and elementary particles is still unknown?

(see the answer key)

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