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# The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest For… Test | Mid-Book Test - Medium

This set of Lesson Plans consists of approximately 185 pages of tests, essay questions, lessons, and other teaching materials.
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This test consists of 5 multiple choice questions, 5 short answer questions, and 10 short essay questions.

## Multiple Choice Questions

1. Which of the following is correct about the speed at which light moves?
(a) It moves faster at higher energy levels.
(b) It moves at a constant speed for all observers.
(c) It moves at a constant speed only near a gravitational field.
(d) Its speed depends on the observer.

2. Edwin Hubble used Einstein's theories to show that the fabric of the universe _____.
(a) Is not static, it must either be shrinking or expanding.
(b) Has a finite boundary.
(c) Is not flat, it is curved, either inwards or outwards.
(d) Is uniform in all places and times.

3. The advent of fermionic vibrational patterns resulted in the creation of _____.
(a) Quantum electroweak theory.
(b) Symmetric antistring theory.
(c) Fermionic resonance theory.
(d) Supersymmetric quantum field theory.

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

5. Einstein's equation, E=mc^2, states that which of the following are equivalent?
(a) Energy and mass.
(b) Electricity and magnetism.
(c) Energy and light.
(d) Light and magnetism.

1. Which of the following is NOT an actual version of string theory?

2. What would an outside observer notice about an object moving near the speed of light?

3. What property did the double-slit experiment demonstrate that light has?

4. Which physicist is credited with discovering that light is composed of particles?

5. What is quantum foam?

## Short Essay Questions

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

2. List the four fundamental forces of the universe, their functions, and describe where and at what scales they are most commonly observed.

3. What is supersymmetry and what is its importance in string theory?

4. State Newton's law of gravity.

5. What is the relationship between wavelength, frequency, and a wave's minimum energy?

6. What are the two main theories on which modern physics is based? At what scales are they accurate or inaccurate? Give at least one example of a circumstance in which both theories would need to be employed.

7. Suppose that two objects are exerting a gravitational pull on each other, when one suddenly moves a large distance further away from the other object. Describe the impact of this event according to general relativity.

8. Describe the basic principles of string theory.

9. How many string theories are there and how did there come to be multiple theories?

10. What are the messenger particles of the strong and weak force, and what function do they perform?