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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 11 Conclusion.

Multiple Choice Questions

1. When Hubble discovered other galaxies, in what direction were they moving?
(a) Away from each other.
(b) Towards each other.
(c) Towards earth.
(d) Away from earth.

2. Gravitational force is always what?
(a) Attractive.
(b) Negated by other forces.
(c) Repulsive.
(d) Present.

3. How many questions are left unanswered prior to the development of math that incorporates quantum mechanics?
(a) Six.
(b) Four.
(c) Three.
(d) Five.

4. What force is so strong in a black hole that nothing can escape?
(a) Gravity.
(b) Electricity.
(c) Force.
(d) Magnetism.

5. A location on earth's surface is defined by what?
(a) Longitude, latitude and altitude.
(b) Location, time and depth.
(c) Altitude, degree and time.
(d) Height, width and depth.

Short Answer Questions

1. "We see the universe the way it is because we exist," demonstrates what principle?

2. The general theory of relativity best describes what world?

3. What type of theories try to bring the various virtual particles together as one entity, but do not include gravity?

4. Hawking co-authored a paper in what year that explains the big bang theory?

5. There are at least how many different arrows of time?

(see the answer key)

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