Matching
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Match each item with the correct statement below. a. | organic chemistry | d. | analytical chemistry | b. | inorganic chemistry | e. | physical chemistry | c. | biochemistry |
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1.
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the study of the processes that take place in organisms
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2.
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concerned with the mechanism, rate, and energy transfer that occurs when matter
undergoes a change
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3.
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the study of all chemicals containing carbon
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4.
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the study of chemicals that, in general, do not contain carbon
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5.
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the study of the composition of matter
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6.
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Which field of science studies the composition and structure of matter?
a. | physics | c. | chemistry | b. | biology | d. | geology |
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7.
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The study of chemicals that, in general, do not contain carbon is traditionally
called what type of chemistry?
a. | bio | c. | physical | b. | inorganic | d. | analytical |
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8.
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The study of the mechanisms, rates, and energy transfer of changes in matter is
traditionally called what type of chemistry?
a. | bio | c. | physical | b. | organic | d. | inorganic |
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9.
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The study of the composition of matter is traditionally called what type of
chemistry?
a. | analytical | c. | physical | b. | inorganic | d. | organic |
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10.
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The study of chemicals containing carbon is traditionally called what type of
chemistry?
a. | analytical | c. | bio | b. | organic | d. | inorganic |
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11.
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Which of the following would a chemist be most likely to study?
a. | a leaf floating on water | c. | a leaf being blown by the
wind | b. | a leaf changing color in autumn | d. | a leaf being eaten by
insects |
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12.
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Which of the following best describes an example of pure chemistry?
a. | testing the effects of lower concentrations of a drug on humans | b. | studying chemicals
containing carbon | c. | developing a cure for
osteoporosis | d. | finding an antidote for a new strain of virus |
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13.
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Which of the following best describes an example of applied chemistry?
a. | studying chemicals containing carbon | b. | determining the chemical composition of a rock
such as granite | c. | determining the structure of cotton and silk | d. | perfecting a method
for producing nylon fibres |
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14.
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Which of the following statements is false?
a. | Knowledge of chemistry allows the public to make informed
decisions. | b. | Studying chemistry ensures that officials make correct choices in funding
technology. | c. | Knowledge of chemistry helps prepare people for careers in soil
science. | d. | Chemistry explains many aspects of nature. |
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15.
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Which of the following is NOT an example of chemistry research in the main area
of energy?
a. | producing hook-and-loop tape | b. | determining the usefulness of oil from soybean
plants | c. | developing rechargeable batteries | d. | studying the effects of
insulation |
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16.
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Which of the following is an example of a current research focus in
chemistry?
a. | development of smoke detectors for common use | b. | using hook-and-loop
tape in the clothing industry | c. | applying gene therapy to treat certain
diseases | d. | studying coal combustion as an energy source |
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17.
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Which of the following was a major contribution to chemistry by Antoine
Lavoisier?
a. | He showed that oxygen is required for material to burn. | b. | He demonstrated the
presence of phlogiston in air. | c. | He encouraged scientists to form explanations
based on philosophical arguments. | d. | He developed the science of
alchemy. |
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18.
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One characteristic of a scientific theory is that ____.
a. | it can never be proved | c. | it cannot be modified | b. | it can be
proved | d. | it summarizes a set
of observations |
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19.
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A theory is a ____.
a. | proposed explanation for an observation | b. | well-tested
explanation for a broad set of observations | c. | summary of the results of many
observations | d. | procedure used to test a proposed explanation |
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20.
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A hypothesis is a ____.
a. | summary of the results of many observations | b. | procedure used to
test a proposed explanation | c. | well-tested explanation for a broad set of
observations | d. | proposed explanation for an observation |
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21.
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An experiment is a ____.
a. | proposed explanation for an observation | b. | summary of the
results of many observations | c. | procedure used to test a proposed
explanation | d. | well-tested explanation for a broad set of
observations |
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22.
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A scientific law is a ____.
a. | proposed explanation for an observation | b. | well-tested
explanation for a broad set of observations | c. | summary of the results of many
observations | d. | procedure used to test a proposed explanation |
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23.
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Which step in the scientific method requires you to use your senses to obtain
information?
a. | revising a hypothesis | c. | making an observation | b. | designing an
experiment | d. | stating a
theory |
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24.
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The variable that is observed during an experiment is called what type of
variable?
a. | independent | c. | controlling | b. | manipulated | d. | responding |
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25.
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The variable that you change during an experiment is called what type of
variable?
a. | responding | c. | dependent | b. | manipulated | d. | controlled |
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26.
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Collaboration and communication are important in science because ____.
a. | most research problems are not very complex | b. | most scientists have
the knowledge to solve any scientific problem | c. | they increase the likelihood of a successful
outcome | d. | they keep scientists from having to repeat
experiments |
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27.
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Which of these steps should always be followed for effective problem
solving?
a. | buying a larger quantity of material than estimated | b. | performing metric
conversions | c. | developing a plan and then implementing the plan | d. | using a
trial-and-error approach and then evaluating |
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28.
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The step that usually comes last in solving numeric problems is ____.
a. | calculate | c. | evaluate | b. | measure | d. | analyze |
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29.
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The step that usually comes first in solving numeric problems is ____.
a. | evaluate | c. | analyze | b. | measure | d. | calculate |
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30.
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How do conceptual problems differ from numeric problems?
a. | Solutions to conceptual problems involve analysis, while numeric solutions do
not. | b. | Logic is not usually involved in solving numeric problems. | c. | A plan is necessary
to solve numeric problems, but is not necessary for conceptual problems. | d. | Solutions to
conceptual problems normally do not involve calculations. |
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