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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 5 Elementary Particles and the Forces of Nature.

Multiple Choice Questions

1. Which virtual particle carries the electromagnetic force?
(a) Photon.
(b) Proton.
(c) Magnetron.
(d) Electron.

2. Who demonstrated that an atom is made up of electrons orbiting a nucleus made up of protons?
(a) Ernest Rutherford.
(b) Albert Einstein.
(c) James Chadwick.
(d) Murray Gell-Mann.

3. Who wrote the introduction?
(a) Max Planck.
(b) Edwin Hubble.
(c) Stephen Hawking.
(d) Carl Sagan.

4. What question is among the unanswerable questions children ask, according to the Introduction?
(a) What happens when we die?
(b) Why does time only go in one direction?
(c) Why are we here?
(d) Why is there a universe?

5. The idea of the big bang arises from what phenomena?
(a) The theory of relativity.
(b) The theory of light.
(c) The expanding universe.
(d) The decreasing universe.

Short Answer Questions

1. Philosophers try to understand the universe using what method?

2. Who created the idea that a star can collapse and become a black hole?

3. A black hole has zero what?

4. The only constant in the universe is what?

5. How close is the closest star, other than the sun, to earth?

(see the answer key)

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