Question 1

Which of the following is the best description of the first law of thermodynamics?

Accepted Answer

A)  Atoms cannot be created or destroyed.
B)  Energy input always equals energy output.
C)  Heat is a form of kinetic energy.
D)  Solar energy is converted into chemical energy in living systems.
E)  All of these answers apply to the first law of thermodynamics.F) B) and E)
G) C) and E)

Question 2

Match the items below with the correct energy or matter quality below.
-gasoline

Accepted Answer

A)  High-quality matter
B)  Low-quality matter
C)  High-quality energy
D)  Low-quality energy
E)  Both high-quality matter and high-quality energyF) D) and E)
G) A) and B)

Question 3

The two chemical forms of matter are elements and compounds.

Accepted Answer

A) True 
 B)False

Question 4

Curiosity and skepticism are important features of the scientific process.
a.Explain how these two attributes in a scientist come into play during a late phase of scientific investigation called accept or reject the hypothesis.

Accepted Answer

A skeptical and curious scientist will w...

Question 5

When electrical energy lights an incandescent light bulb, 50 percent of the energy produces light.

Accepted Answer

A) True 
 B)False

Question 6

Match the items below with the correct energy or matter quality below.
-coal

Accepted Answer

A)  High-quality matter
B)  Low-quality matter
C)  High-quality energy
D)  Low-quality energy
E)  Both high-quality matter and high-quality energyF) A) and B)
G) A) and E)

Question 7

Match the items listed below with the appropriate choice
 
-Which letter represents primary, secondary, and tertiary consumers?

Accepted Answer

The answer of Match the items listed below with the...

Question 8

The steps in the scientific investigative process are always followed in the same sequence by every scientist, without fail.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements does not describe scientific investigations?

Accepted Answer

A)  They can disprove things completely.
B)  They cannot prove things completely.
C)  Bias can be present but can be minimized.
D)  They are limited to understanding the natural world.
E)  They can utilize mathematical models.F) None of the above
G) A) and C) A

Question 10

The Bormann-Likens controlled experiment in forest valleys in New Hampshire showed that water flowing out of deforested areas, when compared to undisturbed areas,

Accepted Answer

A)  was greater in volume by 30 to 40%
B)  was less in volume by 30 to 40%
C)  had more soil nutrients dissolved in the water
D)  was less in volume by 30 to 40% and had fewer soil nutrients dissolved in the water
E)  was greater in volume by 30 to 40% and had more soil nutrients dissolved in the waterF) A) and C)
G) B) and C)

Question 11

When energy changes from one form to another, it always goes from a more useful to a less useful form.

Accepted Answer

A) True 
 B)False  True

Question 12

Which of the following choices best describes the sequence scientists typically use in the beginning stages of their investigations about how nature works?

Accepted Answer

A)  analyze data -> search literature -> perform experiment -> identify a problem -> ask a question
B)  ask a question -> search literature -> perform experiment -> analyze data -> identify a problem
C)  search literature -> ask a question -> identify a problem -> analyze data -> perform experiment
D)  identify a problem ->search literature -> ask a question -> perform experiment -> analyze data
E)  ask a question->search literature -> identify a problem -> perform experiment -> analyze dataF) B) and D)
G) D) and E)

Question 13

The nucleus of an atom contains the ____________________ and ____________________.

Accepted Answer

protons, n...

Question 14

Scientific hypotheses differ from scientific theories in that they are

Accepted Answer

A)  widely accepted descriptions of what we find happening over and over in nature
B)  tentative explanations that need further evaluation
C)  not subject to proper investigation and testing
D)  all of these answers
E)  tentative explanations that need further evaluation and not subject to proper investigation and testingF) A) and D)
G) None of the above B

Question 15

Match items with their appropriate chemical description.
-A subatomic particle with no net electrical charge

Accepted Answer

A)  S
B)  H+
C)  Electron
D)  Proton
E)  neutronF) CO2G) NaH) NucleusI) mass numberJ) NO3-K) IsotopesL) A) and I)
M) D) and I)

Question 16

Since scientific theories are tentative explanations, they should not be taken seriously.

Accepted Answer

A) True 
 B)False

Question 17

Match items with their appropriate chemical description.
-Atoms with variable numbers of neutrons

Accepted Answer

A)  S
B)  H+
C)  Electron
D)  Proton
E)  neutronF) CO2G) NaH) NucleusI) mass numberJ) NO3-K) IsotopesL) C) and J)
M) C) and G)

Question 18

Hydrocarbons are organic compounds.

Accepted Answer

A) True 
 B)False

Question 19

Match items with their appropriate chemical description.
-The total number of protons and neutrons in an atom's nucleus

Accepted Answer

A)  S
B)  H+
C)  Electron
D)  Proton
E)  neutronF) CO2G) NaH) NucleusI) mass numberJ) NO3-K) IsotopesL) H) and J)
M) C) and J)

Question 20

Scientists Bormann and Likens demonstrated in their experiment on a clear-cut forest that

Accepted Answer

A)  A cleared forest is more sustainable than an uncleared forest.
B)  An uncleared forest is more sustainable than a cleared forest.
C)  Cleared and uncleared forests have the same sustainability.
D)  Clearing a forest violates the second law of thermodynamics.
E)  At least two of these answers are correct.F) D) and E)
G) C) and E)

Exam 2: Science, Matter, and Energy

Which of the following is the best description of the first law of thermodynamics?

Correct AnswerverifiedShow Answer

Match the items below with the correct energy or matter quality below. -gasoline

Correct AnswerverifiedShow Answer

The two chemical forms of matter are elements and compounds.

Correct AnswerverifiedShow Answer

Curiosity and skepticism are important features of the scientific process. a.Explain how these two attributes in a scientist come into play during a late phase of scientific investigation called accept or reject the hypothesis.

Correct AnswerverifiedA skeptical and curious scientist will w...View AnswerShow Answer

When electrical energy lights an incandescent light bulb, 50 percent of the energy produces light.

Correct AnswerverifiedShow Answer

Match the items below with the correct energy or matter quality below. -coal

Correct AnswerverifiedShow Answer

Match the items listed below with the appropriate choice -Which letter represents primary, secondary, and tertiary consumers?

Correct AnswerverifiedShow Answer

The steps in the scientific investigative process are always followed in the same sequence by every scientist, without fail.

Correct AnswerverifiedShow Answer

Which of the following statements does not describe scientific investigations?

Correct AnswerverifiedA

The Bormann-Likens controlled experiment in forest valleys in New Hampshire showed that water flowing out of deforested areas, when compared to undisturbed areas,

Correct AnswerverifiedShow Answer

When energy changes from one form to another, it always goes from a more useful to a less useful form.

Correct AnswerverifiedTrue

Which of the following choices best describes the sequence scientists typically use in the beginning stages of their investigations about how nature works?

Correct AnswerverifiedShow Answer

The nucleus of an atom contains the ____________________ and ____________________.

Correct Answerverifiedprotons, n...View AnswerShow Answer

Scientific hypotheses differ from scientific theories in that they are

Correct AnswerverifiedB

Match items with their appropriate chemical description. -A subatomic particle with no net electrical charge

Correct AnswerverifiedShow Answer

Since scientific theories are tentative explanations, they should not be taken seriously.

Correct AnswerverifiedShow Answer

Match items with their appropriate chemical description. -Atoms with variable numbers of neutrons

Correct AnswerverifiedShow Answer

Hydrocarbons are organic compounds.

Correct AnswerverifiedShow Answer

Match items with their appropriate chemical description. -The total number of protons and neutrons in an atom's nucleus

Correct AnswerverifiedShow Answer

Scientists Bormann and Likens demonstrated in their experiment on a clear-cut forest that

Correct AnswerverifiedShow Answer

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A skeptical and curious scientist will w...
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A

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True

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The nucleus of an atom contains the and .

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protons, n...
View Answer

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B

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