View a FREE sample

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

2. What is the scientific state of the "multiverse" theory?
(a) It is on the fringes of physics.
(b) It was discarded years ago.
(c) It is accepted by almost all young physicists, but almost no older ones.
(d) It is well accepted by the physics community.

3. Who posited the existence of M-theory?
(a) Brandenberger.
(b) Witten.
(c) Plesser.
(d) Greene.

4. Kaluza's theory suggested that electromagnetism was carried by ripples in _____.
(a) All dimensions of both space and time.
(b) The three normal space dimensions.
(c) The time-dimension only.
(d) The "curled up" dimensions.

5. Who first proposed the existence of extra dimensions?
(a) Einstein.
(b) Kaluza.
(c) Hawking.
(d) Maxwell.

Short Answer Questions

1. Which of the following methods has been used to determine the shape of the Calabi-Yau space?

2. Why can the objects predicted by string theory not be observed?

3. What distinction does dark matter have?

4. Which of the following is true regarding the amount of visible matter in the universe compared to the amount of matter required to cause collapse of the universe?

5. How many total dimensions are required by string theory?

Short Essay Questions

1. Why are superparticles important to string theory, and how has research into these particles affected the field of string theory?

2. What is the strong-weak duality?

3. How is the shape of the Calabi-Yau space is determined?

4. Describe the state of the universe's expansion, including what its ultimate fate might be.

5. Describe Kaluza-Klein theory.

6. Describe the phenomenon of winding in string theory.

7. Describe the big bang according to string theory.

8. What is the origin of M-theory, and what are its basic characteristics?

9. What is the horizon problem in cosmology? How was it resolved?

10. Describe the nature and importance of the procedure discovered by Yau and Tian.

(see the answer keys)

This section contains 959 words (approx. 4 pages at 300 words per page) View a FREE sample