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

Multiple Choice Questions

1. Which of the following is true regarding the mass and spin of a pair of superpartners?
(a) They have unrelated masses, and their spins differ by 1.
(b) They have the same mass, and their spins differ by 1/2.
(c) They have the same mass and spin.
(d) Their masses and spins are not related.

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

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

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

5. What type of motion cannot be felt or sensed by the moving observer?
(a) Constant-velocity movement.
(b) Accelerating movement.
(c) Orbital movement around a star.
(d) Slowing or decelerating movement.

6. Which of the follow best describes a boson?
(a) A particle of energy, a messenger particle for a force.
(b) The supersymmetric version of a proton.
(c) The super-partner of a proton.
(d) A particle of matter.

7. Which of the following is not one of the four fundamental forces of the universe?
(a) The electromagnetic force.
(b) Gravity.
(c) The nuclear-weak force.
(d) The photoelectric force.

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

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

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

11. What is the fundamental particle, the smallest possible bundle of energy, for the electromagnetic force?
(a) The gluon.
(b) The neutrino.
(c) The electron.
(d) The photon.

12. What is different about a particle of antimatter, compared to its normal counterpart?
(a) Opposite electrical charge.
(b) Complementary spin.
(c) Zero mass.
(d) Negative mass.

13. What is the quantum, or messenger particle, of gravity?
(a) The gravino.
(b) The Calabi-Yau particle.
(c) The Einstein boson.
(d) The graviton.

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

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

Short Answer Questions

1. Which of the following accurately describes the phenomenon of "quantum tunneling"?

2. What rule did Max Planck discover the electromagnetic waves bounded in a container, such as an oven, must follow?

3. The first version of string theory did not include any particles of _____.

4. What is the Planck energy?

5. Quantum chromodynamics concerns quantum mechanics and ____.

(see the answer keys)

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