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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter Fifteen, Prospects.

Multiple Choice Questions

1. What property of both black holes and elementary particles is still unknown?
(a) Their spin.
(b) Their relationships to strings.
(c) Their internal structures.
(d) Their supersymmetric partners.

2. Which of the following is one of the difficulties in observing super particles?
(a) They are massless.
(b) They do not interact with either matter or light.
(c) They are incredibly rare, and pass through most matter.
(d) They are too massive to be observed in a particle accelerator.

3. What are the characteristics of a wave?
(a) Frequency, wavelength, and amplitude.
(b) Energy level, polarity, and speed.
(c) Frequency, polarity, and wavelength.
(d) Amplitude and energy.

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

5. What type of a string can be massless?
(a) A string with more than one dimension.
(b) A non-vibrating.
(c) An unwrapped string.
(d) A non-oscillating string.

Short Answer Questions

1. Which one of the following do physicists believe occurs at the central point of a black hole?

2. About how old is the universe?

3. What property of electromagnetic waves did Max Planck solve the thermodynamic problem of the oven by discovering?

4. Why are the extra dimensions needed in string theory?

5. In 1968 it was discovered that protons and neutrons are composed of which type of particle?

(see the answer key)

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