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

Multiple Choice Questions

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

2. How are the wavelength of a string's vibration and the mass of the particle it represents related?
(a) Wavelength and mass are not related.
(b) If there is a wavelength above the Planck length, the particle is massless.
(c) The longer the wavelength, the less massive the particle.
(d) The longer the wavelength, the more massive the particle.

3. How can black holes be detected?
(a) By looking for dark gaps in clusters of stars.
(b) By observing the directions of solar winds.
(c) With an ultraviolet-range telescope.
(d) By their effects on objects around them.

4. Which of the following is NOT an actual version of string theory?
(a) Heterotic type O(32) theory.
(b) Type I theory.
(c) Fermionic type IV theory.
(d) Type IIA theory.

5. Which physicist is credited with discovering that light is composed of particles?
(a) Einstein.
(b) Rutherford.
(c) Planck.
(d) Maxwell.

6. Why are the fluctuations that quantum physics predicts not observable in everyday life?
(a) The human brain filters them out.
(b) Most fluctuations are canceled out by electromagnetic waves, like light.
(c) The fluctuations only occur in deep space.
(d) On large scales, the effects cancel each other out.

7. In quantum mechanics, what is symmetry breaking?
(a) When two fused fundamental forces become separated out.
(b) When an asymmetrical matter and anti-matter pair is created.
(c) When the symmetry between a electrical and magnetic field is broken at high energy levels.
(d) The primary reason that the theory is incompatible with general relativity.

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

9. What would an outside observer notice about an object moving near the speed of light?
(a) It would be shorted in the direction of its movement.
(b) It would appear vastly larger than it would at rest.
(c) It would appear to move slower near a gravitational field.
(d) It would not be observable under any circumstances.

10. What does the quantum electroweak theory state about the two fundamental forces it describes?
(a) They only interact at the Planck length and below.
(b) At extreme energy and temperature conditions, they become the same thing.
(c) In four-dimensional space, they are the same thing.
(d) They are identical at quantum scales.

11. Which of the following is a correct statement, based on the theory of special relativity?
(a) Movement can only be measured relative to very massive objects, such as stars.
(b) Time and space are not experienced exactly the same by all observers
(c) Energy only exists relative to mass.
(d) Time is always the same to all observers, but space is not.

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

13. According to string theory, why do different particles have different properties?
(a) Their strings are vibrating in different patterns.
(b) Their strings do not have the same number of dimensions.
(c) They have different types of strings.
(d) Their strings are different lengths.

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

15. Two theories form the basis of modern physics, but are incompatible with one another. String theory attempts to reconcile these fields. What are these two theories?
(a) General relativity and special relativity.
(b) Gravity and general relativity.
(c) General relativity and quantum mechanics.
(d) Quantum mechanics and the photoelectric effect.

Short Answer Questions

1. The wave-like nature of the electron means that after a collision, _____.

2. Which of the following is closest to the Planck length?

3. 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?

4. What is the quantum, or messenger particle, of the weak force?

5. According to general relativity, which of the following is said to warp or bend space-time?

(see the answer keys)

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