Conceptual Physics 12th Edition By Paul G. Hewitt – Test Bank

Conceptual Physics, 12e (Hewitt)

Chapter 11  Atomic Nature of Matter

11.1  Multiple-Choice Questions

1) Which of these investigators did NOT contribute to our knowledge of atoms?

1. A) Aristotle
2. B) John Dalton
3. C) Robert Brown
4. D) Albert Einstein

Answer:  A

Diff: 1

Topic:  The Atomic Hypothesis

2) Brownian motion is caused by

1. A) thermal agitation.
2. B) perpetual motion.
3. C) particles larger than atoms bumping into them.
4. D) interactions between atoms and molecules.
5. E) almost invisible bugs.

Answer:  C

Diff: 1

Topic:  The Atomic Hypothesis

3) What did Robert Brown see in his microscope?

1. A) straight-line motion
2. B) circular motions
3. C) parabolic motions
4. D) random motions

Answer:  D

Diff: 1

Topic:  The Atomic Hypothesis

4) Nuclei of atoms that make up a newborn baby were manufactured in

1. A) the mother’s womb.
2. B) the food the mother eats before delivery.
3. C) ancient stars.
4. D) the Earth.
5. E) none of the above

Answer:  C

Diff: 2

Topic:  Characteristics of Atoms

5) Compared to the atoms that make up the body of an elderly person, the atoms that make up the body of a newborn baby are

1. A) newer.
2. B) actually older.
3. C) the same age.

Answer:  C

Diff: 2

Topic:  Characteristics of Atoms

6) A granite block is mostly empty space because the atoms in the granite are

1. A) in perpetual motion.
2. B) mostly empty space themselves.
3. C) held together by electrical forces.
4. D) not as close together as they could be.
5. E) invisible.

Answer:  B

Diff: 2

Topic:  Characteristics of Atoms

7) There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of

1. A) a large auditorium.
2. B) a large city.
3. C) the United States.
4. D) the whole world.
5. E) none of the above

Answer:  D

Diff: 1

Topic:  Characteristics of Atoms

8) The chance that at least one of the atoms exhaled in your previous breath will be inhaled in your next breath is

1. A) very low.
2. B) very high.
3. C) zero.

Answer:  B

Diff: 2

Topic:  Characteristics of Atoms

9) Assuming all the atoms exhaled by Julius Caesar in his last dying breath are still in the atmosphere, we breathe in at least one of them each

1. A) single breath.
2. B) day.
3. C) month.
4. D) ten years.
5. E) can’t say for some people breathe a few of Caesar’s atoms daily, while others never.

Answer:  A

Diff: 2

Topic:  Characteristics of Atoms

10) Which of the following statements is true?

1. A) an atom is the smallest particle known to exist
2. B) there are only about 100 different kinds of atoms that combine to form all substances
3. C) there are thousands of different kinds of atoms that account for a wide variety of substances
4. D) a large atom can be photographed with the aid of an ordinary microscope
5. E) none of the above

Answer:  B

Diff: 1

Topic:  Characteristics of Atoms

11) The difficulty of taking a photograph of an atom with light is

1. A) unwanted diffraction.
2. B) that atoms are smaller than wavelengths of light.
3. C) both of these
4. D) neither of these

Answer:  C

Diff: 1

Topic:  Atomic Imagery

12) If we doubled the magnifying power of the most powerful optical microscope in the world, we would

1. A) be able to see individual atoms.
2. B) be able to photograph individual atoms, even though we couldn’t see them.
3. C) still not be able to see or photograph an atom.

Answer:  C

Diff: 1

Topic:  Atomic Imagery

13) Atoms can be photographed by

1. A) electron beams.
2. B) scanning electron microscopes.
3. C) both of these
4. D) neither of these

Answer:  C

Diff: 1

Topic:  Atomic Imagery

14) An atomic model of the atom is

1. A) a symbolic representation of the atom.
2. B) a stepping stone to further understanding.
3. C) an abstraction enabling predictions.
4. D) all of the above

Answer:  D

Diff: 1

Topic:  Atomic Imagery

15) The element gold contains

1. A) gold atoms.
2. B) atoms that combine to produce gold.
3. C) gold atoms plus various slightly lighter and heavier atoms.
4. D) none of the above

Answer:  A

Diff: 1

Topic:  Atomic Structure