Question 1

In the respiration reaction

Accepted Answer

A)  oxygen combines with such biological molecules as DNA. 
B)  CO2 combines with H2O. 
C)  CO2 combines with the carbon in such biological molecules as glucose. 
D)  carbon combines with such biological molecules as DNA. 
E)  oxygen combines with the carbon in such biological molecules as glucose. 
A)  oxygen combines with such biological molecules as DNA. 
B)  CO2 combines with H2O. 
C)  CO2 combines with the carbon in such biological molecules as glucose. 
D)  carbon combines with such biological molecules as DNA. 
E)  oxygen combines with the carbon in such biological molecules as glucose. E

Question 2

Chemically, helium is

Accepted Answer

A)  an isotope. 
B)  a compound. 
C)  a solid. 
D)  an element. 
E)  a mixture. 
A)  an isotope. 
B)  a compound. 
C)  a solid. 
D)  an element. 
E)  a mixture. D

Question 3

According to the atomic materialist philosophy, certain things are regarded as "real" and other things as merely "imaginary." Which of the following is [or are] regarded by this philosophy as real?

Accepted Answer

A)  atoms 
B)  directly observable phenomena such as color and warmth 
C)  human emotions 
D)  Both answers A and B are correct. 
E)  None of the above are regarded as real by the atomic materialist philosophy. 
A)  atoms 
B)  directly observable phenomena such as color and warmth 
C)  human emotions 
D)  Both answers A and B are correct. 
E)  None of the above are regarded as real by the atomic materialist philosophy. A

Question 4

A feature of the quantum model of the atom that is not a feature of the Greek or planetary models is that

Accepted Answer

A)  the quantum model is only a theory, whereas the other two models are supported by factual evidence. 
B)  the quantum model of the atom cannot be visualized. 
C)  Both of the above. 
D)  the quantum model can explain electrical effects. 
E)  All of the above. 
A)  the quantum model is only a theory, whereas the other two models are supported by factual evidence. 
B)  the quantum model of the atom cannot be visualized. 
C)  Both of the above. 
D)  the quantum model can explain electrical effects. 
E)  All of the above.

Question 5

What is the similarity between burning and respiration?

Accepted Answer

A)  Both reactions involve the combination of carbon with oxygen. 
B)  Both reactions consume glucose. 
C)  Both reactions create oxygen. 
D)  Both reactions consume energy. 
E)  Actually there is no similarity between them. 
A)  Both reactions involve the combination of carbon with oxygen. 
B)  Both reactions consume glucose. 
C)  Both reactions create oxygen. 
D)  Both reactions consume energy. 
E)  Actually there is no similarity between them.

Question 6

At the microscopic level, the difference between gases and solids is that

Accepted Answer

A)  there is much more distance (at least 10 times more) between neighboring atoms in a gas than between neighboring atoms in a solid. 
B)  the gas's atoms move throughout the gas, while the solid's atoms remain near their original locations. 
C)  in a gas, the individual atoms are larger. 
D)  both answers A and B are correct. 
E)  both answers B and C are correct. 
A)  there is much more distance (at least 10 times more) between neighboring atoms in a gas than between neighboring atoms in a solid. 
B)  the gas's atoms move throughout the gas, while the solid's atoms remain near their original locations. 
C)  in a gas, the individual atoms are larger. 
D)  both answers A and B are correct. 
E)  both answers B and C are correct.

Question 7

Comparing the size of a wavelength of light with the size of an atom,

Accepted Answer

A)  they are about the same size. 
B)  some lightwaves are larger than atoms, but others are smaller than atoms. 
C)  some atoms are are larger than a lightwave, but others are small than a lightwave. 
D)  atoms are much larger. 
E)  atoms are much smaller. 
A)  they are about the same size. 
B)  some lightwaves are larger than atoms, but others are smaller than atoms. 
C)  some atoms are are larger than a lightwave, but others are small than a lightwave. 
D)  atoms are much larger. 
E)  atoms are much smaller.

Question 8

Air is composed mainly of

Accepted Answer

A)  O2. 
B)  N2 and O3. 
C)  CO2 and O3. 
D)  CO2 and O2. 
E)  N2 and O2. 
A)  O2. 
B)  N2 and O3. 
C)  CO2 and O3. 
D)  CO2 and O2. 
E)  N2 and O2.

Question 9

The distance to the sun is about 150 million km. Expressed in powers of ten, this is

Accepted Answer

A)  1.5 × 106 km. 
B)  1.5 × 10- 8 km. 
C)  1.5 × 108 km. 
D)  1.5 × 10- 6 km. 
E)  None of the above. 
A)  1.5 × 106 km. 
B)  1.5 × 10- 8 km. 
C)  1.5 × 108 km. 
D)  1.5 × 10- 6 km. 
E)  None of the above.

Question 10

Suppose that a particular chemical substance is "pure" [contains no "impurities"], and that it is not possible to decompose this substance by chemical means. What can we conclude from this?

Accepted Answer

A)  The substance must be a chemical compound. 
B)  The substance must be an element. 
C)  The substance must be one of the ideal, or perfect, gases. 
D)  The substance must be incapable of entering into chemical reactions of any kind. 
E)  None of the above. 
A)  The substance must be a chemical compound. 
B)  The substance must be an element. 
C)  The substance must be one of the ideal, or perfect, gases. 
D)  The substance must be incapable of entering into chemical reactions of any kind. 
E)  None of the above.

Question 11

The reverse of the photosynthesis reaction is

Accepted Answer

A)  the combustion reaction. 
B)  the respiration reaction. 
C)  the photolysis reaction. 
D)  the reduction reaction. 
E)  nonsense-- the photosynthesis reaction is not reversible. 
A)  the combustion reaction. 
B)  the respiration reaction. 
C)  the photolysis reaction. 
D)  the reduction reaction. 
E)  nonsense-- the photosynthesis reaction is not reversible.

Question 12

The diameter of an atomic nucleus is about a hundredth of a trillionth of a meter. In powers of 10, this is

Accepted Answer

A)  10- 17 m. 
B)  10- 10 m. 
C)  10- 15 m. 
D)  10- 11 m. 
E)  10- 14 m. 
A)  10- 17 m. 
B)  10- 10 m. 
C)  10- 15 m. 
D)  10- 11 m. 
E)  10- 14 m.

Question 13

According to the planetary model, an atom is

Accepted Answer

A)  a single tiny object, not made of parts. 
B)  made of protons, electrons, and ions. 
C)  impossible to visualize [or picture]. 
D)  made of protons, electrons, and neutrons. 
E)  made of protons and electrons. 
A)  a single tiny object, not made of parts. 
B)  made of protons, electrons, and ions. 
C)  impossible to visualize [or picture]. 
D)  made of protons, electrons, and neutrons. 
E)  made of protons and electrons.

Question 14

The number of atoms in the glucose molecule, C6H12O6, is

Accepted Answer

A)  4. 
B)  3. 
C)  48. 
D)  24. 
E)  cannot be determined from the given information. 
A)  4. 
B)  3. 
C)  48. 
D)  24. 
E)  cannot be determined from the given information.

Question 15

Which scientific theory or theories of the atom agrees with all of the atomic experiments performed to date?

Accepted Answer

A)  The Greek theory of the atom. 
B)  The planetary theory of the atom. 
C)  The quantum theory of the atom. 
D)  Both the planetary theory and the quantum theory of the atom. 
E)  None of the above theories agree with all of the atomic experiments performed to date. 
A)  The Greek theory of the atom. 
B)  The planetary theory of the atom. 
C)  The quantum theory of the atom. 
D)  Both the planetary theory and the quantum theory of the atom. 
E)  None of the above theories agree with all of the atomic experiments performed to date.

Question 16

One piece of evidence that Democritus found for his idea that everything is made of atoms was

Accepted Answer

A)  the random, chaotic motions often found in liquids. 
B)  the twinkling of stars, due to our atmosphere. 
C)  Brownian motion. 
D)  the smell of bread and of other substances. 
E)  the fact that chemicals combine in definite proportions. 
A)  the random, chaotic motions often found in liquids. 
B)  the twinkling of stars, due to our atmosphere. 
C)  Brownian motion. 
D)  the smell of bread and of other substances. 
E)  the fact that chemicals combine in definite proportions.

Question 17

At the microscopic level, the difference between liquids and solids is that

Accepted Answer

A)  the liquid's atoms move throughout the liquid, while the solid's atoms remain near their original locations. 
B)  in a liquid, the individual atoms are larger. 
C)  there is much more distance [at least 10 times more] between neighboring atoms in a liquid than between neighboring atoms in a solid. 
D)  both answers A and B are correct. 
E)  both answers B and C are correct. 
A)  the liquid's atoms move throughout the liquid, while the solid's atoms remain near their original locations. 
B)  in a liquid, the individual atoms are larger. 
C)  there is much more distance [at least 10 times more] between neighboring atoms in a liquid than between neighboring atoms in a solid. 
D)  both answers A and B are correct. 
E)  both answers B and C are correct.

Question 18

A "megawatt" is

Accepted Answer

A)  1000 watts. 
B)  1,000,000 watts. 
C)  100 watts. 
D)  1,000,000,000 watts. 
E)  None of the above. 
A)  1000 watts. 
B)  1,000,000 watts. 
C)  100 watts. 
D)  1,000,000,000 watts. 
E)  None of the above.

Question 19

Today, the idea that everything is made of atoms should be classified as

Accepted Answer

A)  a fact. 
B)  a certainty. 
C)  Both of the above. 
D)  a theory. 
E)  a hypothesis. 
A)  a fact. 
B)  a certainty. 
C)  Both of the above. 
D)  a theory. 
E)  a hypothesis.

Question 20

The length of your arm is closest to

Accepted Answer

A)  one meter. 
B)  one kilometer. 
C)  two meters. 
D)  10 centimeters. 
E)  100 meters. 
A)  one meter. 
B)  one kilometer. 
C)  two meters. 
D)  10 centimeters. 
E)  100 meters.

In the respiration reaction

Chemically, helium is

According to the atomic materialist philosophy, certain things are regarded as "real" and other things as merely "imaginary." Which of the following is [or are] regarded by this philosophy as real?

A feature of the quantum model of the atom that is not a feature of the Greek or planetary models is that

What is the similarity between burning and respiration?

At the microscopic level, the difference between gases and solids is that

Comparing the size of a wavelength of light with the size of an atom,

Air is composed mainly of

The distance to the sun is about 150 million km. Expressed in powers of ten, this is

Suppose that a particular chemical substance is "pure" [contains no "impurities"], and that it is not possible to decompose this substance by chemical means. What can we conclude from this?

The reverse of the photosynthesis reaction is

The diameter of an atomic nucleus is about a hundredth of a trillionth of a meter. In powers of 10, this is

According to the planetary model, an atom is

The number of atoms in the glucose molecule, C₆H₁₂O₆, is

Which scientific theory or theories of the atom agrees with all of the atomic experiments performed to date?

One piece of evidence that Democritus found for his idea that everything is made of atoms was

At the microscopic level, the difference between liquids and solids is that

A "megawatt" is

Today, the idea that everything is made of atoms should be classified as

The length of your arm is closest to

The Way of Science: Experience and Reason

How Things Move: Galileo Asks the Right Questions

Why Things Move As They Do

Newtons Universe

Conservation of Energy: You Cant Get Ahead

Second Law of Thermodynamics: and You Cant Even Break Even

Light and Electromagnetism

Electromagnetism Radiation and Global Climate Change

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

The Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Quantum Fields: Relativity Meets the Quantum

Filters

Exam 2: Atoms: the Nature of Things

In the respiration reaction

Chemically, helium is

According to the atomic materialist philosophy, certain things are regarded as "real" and other things as merely "imaginary." Which of the following is [or are] regarded by this philosophy as real?

A feature of the quantum model of the atom that is not a feature of the Greek or planetary models is that

What is the similarity between burning and respiration?

At the microscopic level, the difference between gases and solids is that

Comparing the size of a wavelength of light with the size of an atom,

Air is composed mainly of

The distance to the sun is about 150 million km. Expressed in powers of ten, this is

Suppose that a particular chemical substance is "pure" [contains no "impurities"], and that it is not possible to decompose this substance by chemical means. What can we conclude from this?

The reverse of the photosynthesis reaction is

The diameter of an atomic nucleus is about a hundredth of a trillionth of a meter. In powers of 10, this is

According to the planetary model, an atom is

The number of atoms in the glucose molecule, C6H12O6, is

Which scientific theory or theories of the atom agrees with all of the atomic experiments performed to date?

One piece of evidence that Democritus found for his idea that everything is made of atoms was

At the microscopic level, the difference between liquids and solids is that

A "megawatt" is

Today, the idea that everything is made of atoms should be classified as

The length of your arm is closest to

The Way of Science: Experience and Reason

How Things Move: Galileo Asks the Right Questions

Why Things Move As They Do

Newtons Universe

Conservation of Energy: You Cant Get Ahead

Second Law of Thermodynamics: and You Cant Even Break Even

Light and Electromagnetism

Electromagnetism Radiation and Global Climate Change

The Special Theory of Relativity

The General Theory of Relativity and the New Cosmology

The Quantum Idea

The Quantum Universe

The Nucleus and Radioactivity: an New Force

Fusion and Fission: and a New Energy

The Energy Challenge

Quantum Fields: Relativity Meets the Quantum

Filters

The number of atoms in the glucose molecule, C₆H₁₂O₆, is