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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Twelve, Beyond Strings, In Search of M-Theory.

Multiple Choice Questions

1. Which of the following is true regarding the force of gravity in string theory?
(a) Gravity in string theory acts over much longer distances.
(b) Gravity in string theory is stronger than what we actually observe.
(c) Gravity is not addressed in string theory.
(d) String theory predicts gravity.

2. 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) Particles with high energy can vanish in one location, instantly appearing in another.
(c) High-energy waves can penetrate the fabric of space-time for very short periods of time.
(d) Particles can sometimes "borrow" energy to move in ways impossible in classical physics.

3. What is supergravity?
(a) The gravitational conditions inside a black hole.
(b) The relativistic effect of two particles occupying the same location.
(c) A combination of general relativity and supersymmetry.
(d) The gravitational force felt at the Planck scale.

4. The number of family groups corresponds to a feature of the Calabi-Yau shape. What is this feature?
(a) Its number of folds.
(b) Its number of holes.
(c) Its number of extended dimensions.
(d) Its degree of internal divisions.

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

Short Answer Questions

1. Which of the following best describes the fate of Kaluza-Klein theory?

2. Riemannian geometry describes the following objects: _____.

3. What is a virtual string pair?

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

5. What are the components of an atomic nucleus?

(see the answer key)

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