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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 5, The Need for a New Theory, General Relativity vs. Quantum Mechanics.

Multiple Choice Questions

1. What is the result when a particle of matter and a particle of antimatter are brought into contact?
(a) A black hole is formed.
(b) A strange quark is formed.
(c) Energy is released and both particles are destroyed.
(d) A theoretically unlimited amount of energy is released.

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

3. What is quantum foam?
(a) The rapidly changing spatial distortions at the Planck length.
(b) Particles that are scattered from their normal positions by quantum interference.
(c) The faint material ejected by black holes.
(d) The mixture of short-lived particles observed after a matter and anti-matter collision.

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

5. What is the fundamental force responsible for keeping the nucleus of an atom "glued" together?
(a) Potential electrical force.
(b) Quantum-tunneling force.
(c) The nuclear-strong force.
(d) Gravitational force.

Short Answer Questions

1. How can black holes be detected?

2. Edwin Hubble used Einstein's theories to show that the fabric of the universe _____.

3. Quantum electroweak theory concerns quantum mechanics and _____.

4. Which of the following is a correct statement, based on the theory of special relativity?

5. Which of the following did Einstein considered time?

(see the answer key)

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