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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. Which of the following is one of the major problems in using both quantum physics and general relativity?
(a) General relativity is time-dependant, quantum physics is a steady-state theory.
(b) General relativity is a wave theory, but quantum physics is a particle theory.
(c) Quantum physics predicts that all particles are massless.
(d) At small scales, quantum physics predicts uncertainty, but general relativity requires certainty.

2. Which of the following is not true according to special relativity?
(a) Time does not pass for objects that are perfectly at rest.
(b) Motion and time are relative; they depend on the observer.
(c) All objects move at a constant speed through space-time.
(d) No object can move faster than the speed of light.

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

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

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

Short Answer Questions

1. According to Newton's theory of gravity, 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?

2. Which of the following did Einstein considered time?

3. What is the result when a particle of matter and a particle of antimatter are brought into contact?

4. According to general relativity, all objects that have mass have what effect on space-time?

5. What is different about a particle of antimatter, compared to its normal counterpart?

(see the answer key)

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