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

2. According to Einstein's theory of general relativity, if two objects have a gravitational pull on one another, and one changes its mass or distance from the other, how quickly does the effect of this change travel to the other object?
(a) Instantaneously.
(b) Near the speed of light, faster for lighter objects.
(c) At exactly the speed of light.
(d) Near the speed of light, faster for more massive objects.

3. In Einstein's famous equation, E=mc^2, what does "c" represent?
(a) The object's density.
(b) The speed of the object.
(c) The speed of light.
(d) The frequency of light.

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

5. Which of the following did Einstein considered time?
(a) A fourth dimension, alongside the three spatial dimensions.
(b) The fifth fundamental force of the universe.
(c) A three-dimensional field.
(d) A physical substance, composed of particles.

Short Answer Questions

1. Which of the following is true regarding the tearing of space-time according to general relativity?

2. Which of the following was the first string theory?

3. Riemannian geometry describes the following objects: _____.

4. What metric best approximates the scales at which extra dimensions would have a major impact?

5. Who provided the computer programming to process the results of the Morrison-Greene experiment?

(see the answer key)

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