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This test consists of 15 multiple choice questions and 5 short answer questions.

Multiple Choice Questions

1. How many dimensions did the tiny objects involved in the original statement of string theory have?
(a) Three.
(b) Four.
(c) Two.
(d) One.

2. According to special relativity, which of the following can move faster than light?
(a) Gravitational waves.
(b) Nothing can move faster than light.
(c) Quantum data.
(d) Neutrinos.

3. Which of the following theory was NOT developed in order to try to resolve the conflicts between quantum mechanics and general relativity?
(a) Quantum field theory.
(b) Inflationary theory.
(c) Quantum electrodynamics.
(d) Superstring theory.

4. If a clock were accelerated to nearly the speed of light for a year's time, which of the following would be true of its reading at the end of that time?
(a) It would be exactly equal to one year.
(b) It would be more than one year.
(c) Its reading would be random and meaningless.
(d) It would be less than one year.

5. General relativity is incompatible with _____.
(a) State theory.
(b) The big bang theory.
(c) The photoelectric effect.
(d) Quantum mechanics.

6. In 1968 it was discovered that protons and neutrons are composed of which type of particle?
(a) Neutrinos.
(b) Muons.
(c) Baryons.
(d) Quarks.

7. Which of the following was the first string theory?
(a) Lepton theory.
(b) Fermionic string theory.
(c) Bosonic string theory.
(d) Hadron string theory.

8. The smallest possible unit of energy is referred to as _____.
(a) A quark.
(b) A quantum.
(c) A photon.
(d) A muon.

9. What is the shape of all particles, at the smallest possible level, according to string theory?
(a) A one-dimension loop.
(b) A thread of thin strings.
(c) A tangled ball of thin filament.
(d) An infinitely long string.

10. Quantum electroweak theory concerns quantum mechanics and _____.
(a) The weak force.
(b) The strong force.
(c) Gravity.
(d) The electromagnetic force.

11. What discovery about string theory triggered the "superstring revolution"?
(a) Einstein announced that it exactly matched his formulas for general relativity.
(b) Its approximate equations were solved for the first time.
(c) It was found to encompass the four fundamental forces of matter.
(d) It was experimentally confirmed at Fermilab in the US.

12. How are the amplitude of a string's vibration and the mass of the particle it represents related?
(a) Amplitude and mass are not related.
(b) If there is a non-zero amplitude, the particle is massless.
(c) The higher the amplitude, the more massive the particle.
(d) The higher the amplitude, the less massive the particle.

13. What property did the double-slit experiment demonstrate that light has?
(a) It has an infinite number of possible frequencies.
(b) It has a finite energy level at all frequencies.
(c) It behaves as a wave.
(d) It can be bent by gravity fields.

14. What is the photoelectric effect?
(a) Photons can spontaneously decay into electrons in powerful magnetic fields.
(b) Electrons and photons only interact if they have the same frequency.
(c) When light shines on metals, the metals emit electrons.
(d) Electrons follow quantum paths made by photons.

15. Who discovered the theory of general relativity?
(a) Max Planck.
(b) Isaac Newton.
(c) Albert Einstein.
(d) Richard Feynman.

Short Answer Questions

1. How can black holes be detected?

2. Which of the follow best describes a boson?

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

4. Einstein's equation, E=mc^2, states that which of the following are equivalent?

5. What are the components of an atomic nucleus?

(see the answer keys)

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