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WGU-C165: INTEGRATED PHYSICAL
SCIENCE QUESTIONS AND ANSWERS
2026
Chemistry: - correct answer- The study of atoms and
molecules, their structures, and their interactions to form
various substances.
Physics: - correct answer- The study of forces, energy and
motion.
Earth Science: - correct answer- This field focuses on Earth's
structure and composition, as well as the processes that
change Earth, such as volcanic and seismic activity.
Physical Science: - correct answer- The scientific study of
nonliving matter. Ex: chemistry, physics, and Earth science.
Astronomy: - correct answer- The study of the moon, stars, and
other objects in space.
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Controlled Experiment: - correct answer- An experiment in
which only one variable is manipulated at a time..
Independent Variable: - correct answer- The variable that is
manipulated in an experiment.
Dependent Variable: - correct answer- The outcome factor; the
variable that may change in response to manipulations of the
independent variable.
Control Variable: - correct answer- A variable that is kept
constant during a controlled experiment.
Observational Study: - correct answer- The systems are
observed as they appear in nature and researchers do not
attempt to change them.
Laboratory Experiment: - correct answer- Researchers study
the system of interest in a highly controlled artificial setting
(lab).
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Physical Model: - correct answer- A physical representation of
an object. Ex: Scaled down version of the solar system.
Conceptual Model: - correct answer- A verbal or graphical
explanation for how a system works or is organized. Ex:
posters, charts.
Mathematical Model: - correct answer- Uses different forms of
data to represent the way a system or process works. Ex:
formulas, graphs, mathematical means. Ex: F=ma (formula).
Computer Model: - correct answer- A computer program that
models an event or object. Important in explaining and
predicting natural phenomena. Ex: weather patterns, solar
system.
Principle of Falsification: - correct answer- Principle that only
falsifiable statements can be subject to scientific inquiry.
Hypothesis: - correct answer- A testable prediction, often
implied by a theory.
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Theory: - correct answer- A hypothesis that has been tested
with a significant amount of data.
Law: - correct answer- A concise statement that is supported by
scientific evidence and repeated experiments. Describes a
widespread pattern in nature. Intended to be universal.
Scientific Investigation: - correct answer- Scientists test their
ideas with a variety of different types of investigations. Ex:
laboratories, controlled experiments, astronomy, field studies,
models.
SI System: - correct answer- International System of units
based on the metric system and units derived from the metric
system.
Base Quantities: - correct answer- Seven designated physical
quantities (sets) from which all other SI quantities can be
derived.
(1) Meter (m)-length
(2) Kilogram (k)-mass
(3) Second (s)-time
(4) Kelvin (K)-temperature
(5) Amperes (A)-"amp"-electric current
WGU-C165: INTEGRATED PHYSICAL
SCIENCE QUESTIONS AND ANSWERS
2026
Chemistry: - correct answer- The study of atoms and
molecules, their structures, and their interactions to form
various substances.
Physics: - correct answer- The study of forces, energy and
motion.
Earth Science: - correct answer- This field focuses on Earth's
structure and composition, as well as the processes that
change Earth, such as volcanic and seismic activity.
Physical Science: - correct answer- The scientific study of
nonliving matter. Ex: chemistry, physics, and Earth science.
Astronomy: - correct answer- The study of the moon, stars, and
other objects in space.
,2 | Page
Controlled Experiment: - correct answer- An experiment in
which only one variable is manipulated at a time..
Independent Variable: - correct answer- The variable that is
manipulated in an experiment.
Dependent Variable: - correct answer- The outcome factor; the
variable that may change in response to manipulations of the
independent variable.
Control Variable: - correct answer- A variable that is kept
constant during a controlled experiment.
Observational Study: - correct answer- The systems are
observed as they appear in nature and researchers do not
attempt to change them.
Laboratory Experiment: - correct answer- Researchers study
the system of interest in a highly controlled artificial setting
(lab).
,3 | Page
Physical Model: - correct answer- A physical representation of
an object. Ex: Scaled down version of the solar system.
Conceptual Model: - correct answer- A verbal or graphical
explanation for how a system works or is organized. Ex:
posters, charts.
Mathematical Model: - correct answer- Uses different forms of
data to represent the way a system or process works. Ex:
formulas, graphs, mathematical means. Ex: F=ma (formula).
Computer Model: - correct answer- A computer program that
models an event or object. Important in explaining and
predicting natural phenomena. Ex: weather patterns, solar
system.
Principle of Falsification: - correct answer- Principle that only
falsifiable statements can be subject to scientific inquiry.
Hypothesis: - correct answer- A testable prediction, often
implied by a theory.
, 4 | Page
Theory: - correct answer- A hypothesis that has been tested
with a significant amount of data.
Law: - correct answer- A concise statement that is supported by
scientific evidence and repeated experiments. Describes a
widespread pattern in nature. Intended to be universal.
Scientific Investigation: - correct answer- Scientists test their
ideas with a variety of different types of investigations. Ex:
laboratories, controlled experiments, astronomy, field studies,
models.
SI System: - correct answer- International System of units
based on the metric system and units derived from the metric
system.
Base Quantities: - correct answer- Seven designated physical
quantities (sets) from which all other SI quantities can be
derived.
(1) Meter (m)-length
(2) Kilogram (k)-mass
(3) Second (s)-time
(4) Kelvin (K)-temperature
(5) Amperes (A)-"amp"-electric current
