C165 WGU Integrated Physical Science
| 250+ Questions and Verified Answers |
100% Correct | Grade A
This WGU C165 Integrated Physical Science course covers foundational physics, chemistry, and
Earth science, designed to be passed quickly, often within 4 hours, by focusing on key topics like
energy, force, waves, plate tectonics, and atomic structure. This objective assessment (OA)
typically includes questions on experimental design, motion, and earth systems.
Key Topics and Exam Focus
• Physics: Newton's laws (inertia, force, acceleration), kinetic energy vs. potential energy,
heat transfer, and wave properties (electromagnetic, mechanical).
• Chemistry: Atomic structure (protons, neutrons, electrons), periodic table trends,
states of matter, and chemical bonds.
• Earth Science: Plate tectonics (convergent, divergent, transform boundaries), rock
cycle, atmosphere layers, solar system, and climate/weather.
• Scientific Inquiry: Distinguishing between hypothesis, theory, and law; identifying
independent, dependent, and control variables in a lab vs. observation study.
Q1. Which choice best defines a conceptual model? [Multiple Choice]
A) a verbal or graphical explanation for how a system works or is organized
B) A physical representation of an object or prototype
C) one or more equations that represent the way a system or process works
D) A law that always explains cause and effect
Answer: a verbal or graphical explanation for how a system works or is organized
Explanation: A conceptual model uses words, diagrams, or flowcharts to explain the structure or function
of a system and to clarify relationships without formal equations. Distractors: “physical representation”
refers to a tangible model, not a conceptual one; “one or more equations” defines a mathematical model,
which formalizes relationships numerically; “a testable prediction” is a hypothesis and not a model type
per se.
Q2. What is the definition of precision in measurement? [Multiple Choice]
A) a measure of how close a series of measurements are to one another
1
, B) an organized way of gathering and analyzing evidence about nature
C) a scientific method of expressing magnitudes or quantities using base units
D) the study of living organisms and their processes
Answer: a measure of how close a series of measurements are to one another
Explanation: Precision refers to the consistency or repeatability of measurements—how tightly clustered
repeated observations are—even if they are not near the true value. Distractors: “An organized way of
gathering evidence” defines science in general; “a scientific method of expressing magnitudes” refers to SI
units; “the study of living things” is life science. None of these describe the consistency-focused concept of
precision.
Q3. Which definition most accurately describes astronomy? [Multiple Choice]
A) The study of the moon, stars, and other objects in space
B) The study of atoms and molecules and their bonds
C) The study of Earth's internal structure and surface processes
D) The study of living organisms and ecosystems
Answer: The study of the moon, stars, and other objects in space
Explanation: Astronomy studies celestial objects such as the moon, stars, planets, and other bodies in
space, and their properties and behaviors. Distractors: “study of atoms and molecules” is chemistry and
focuses on matter at molecular scales; “study of living things” is life science and concerns biology; “Earth's
structure and composition” is earth science focused on our planet rather than outer space.
Q4. Which statement correctly describes a physical model? [Multiple Choice]
A) A physical representation of an object. Prototypes and appearance models are physical
models.
B) a verbal or graphical explanation for how a system works or is organized
C) one or more equations that represent the way a system or process works
D) A testable prediction often implied by a theory
Answer: A physical representation of an object. Prototypes and appearance models are physical
models.
Explanation: Physical models are tangible representations used to study form, fit, or function—examples
include prototypes and appearance models that mimic the physical object. Distractors: “a verbal or
graphical explanation” defines a conceptual model, not a physical one; “one or more equations” defines a
mathematical model; “a testable prediction” defines a hypothesis. These describe different model types or
scientific elements, not physical representations.
Q5. Which statement captures the definition of science? [Multiple Choice]
2
, A) An organized way of gathering and analyzing evidence about the natural world.
B) The study of living things and their interactions
C) A measure of how close a series of measurements are to one another
D) A physical representation of an object or prototype
Answer: An organized way of gathering and analyzing evidence about the natural world.
Explanation: Science is a systematic method for collecting observations and testing ideas—gathering and
analyzing evidence to build reliable knowledge about nature. Distractors: “study of living things” defines
life science (a branch of science) but not science itself; “a measure of how close measurements are to one
another” defines precision, not science; “a physical representation of an object” defines a physical model,
not the scientific method as a whole.
Q6. Which phrase defines life science? [Multiple Choice]
A) the study of living things
B) the study of atoms and molecules and their interactions
C) the study of forces, energy, and motion
D) the study of Earth's structure and composition
Answer: the study of living things
Explanation: Life science (biology) studies organisms, their structure, function, growth, origin, evolution,
and interactions. Distractors: “the study of atoms and molecules” is chemistry and focuses on nonliving
matter at molecular scales; “the study of forces, energy, motion” is physics and focuses on physical laws;
“Earth's structure and composition” is earth science and focuses on planetary processes, not organisms.
Q7. Which description best matches earth science? [Multiple Choice]
A) Earth's structure and composition, as well as the processes that change Earth, such as
volcanic and seismic activity.
B) the study of atoms and molecules and how they react to form substances
C) the study of forces, energy, and motion in the universe
D) the study of the moon, stars, and other objects in space
Answer: Earth's structure and composition, as well as the processes that change Earth, such as
volcanic and seismic activity.
Explanation: Earth science concerns the planet’s makeup (structure and composition) and dynamic
processes (for example, volcanism and seismicity) that modify it. Distractors: “study of forces, energy,
motion” is physics and addresses general physical laws; “study of atoms and molecules” is chemistry and
focuses on microscopic matter; “study of the moon, stars, and other objects in space” is astronomy and
focuses on celestial bodies rather than Earth-specific processes.
3
, Q8. Which statement correctly describes the SI system? [Multiple Choice]
A) is a scientific method of expressing the magnitudes or quantities of important natural
phenomena. There are seven base units in the system, from which other units are derived.
Universal for comparing data.
B) a measure of how close a series of measurements are to one another
C) a testable prediction often implied by a theory
D) an organized way of gathering and analyzing evidence about the natural world
Answer: is a scientific method of expressing the magnitudes or quantities of important natural
phenomena. There are seven base units in the system, from which other units are derived.
Universal for comparing data.
Explanation: The SI (International System of Units) provides standardized base units and derived units to
quantify natural phenomena so measurements are comparable worldwide. Distractors: “a measure of how
close measurements are” defines precision, not SI; “a testable prediction” defines a hypothesis; “an
organized way of gathering evidence” defines science. These do not describe a standardized system of
units.
Q9. Which statement best defines a control in an experiment? [Multiple Choice]
A) In an experiment, the standard that is used for comparison
B) what is being changed during an experiment
C) what is being measured as the outcome
D) a spontaneous change with no experimental control
Answer: In an experiment, the standard that is used for comparison
Explanation: A control provides a baseline or standard to compare experimental outcomes against; it
isolates the effect of the independent variable by showing what happens when that variable is absent or
held at a standard. Distractors: “what is being changed” is the independent variable; “what is being
measured” is the dependent variable; “only one variable manipulated” describes the controlled experiment
method rather than the role of a control baseline.
Q10. Which phrase defines the dependent variable? [Multiple Choice]
A) what is being measured
B) what is being changed
C) the standard used for comparison in an experiment
D) an experiment design where all variables are uncontrolled
Answer: what is being measured
Explanation: The dependent variable is the outcome or response that is observed and recorded; it depends
on changes made to the independent variable. Distractors: “what is being changed” is the independent
4
| 250+ Questions and Verified Answers |
100% Correct | Grade A
This WGU C165 Integrated Physical Science course covers foundational physics, chemistry, and
Earth science, designed to be passed quickly, often within 4 hours, by focusing on key topics like
energy, force, waves, plate tectonics, and atomic structure. This objective assessment (OA)
typically includes questions on experimental design, motion, and earth systems.
Key Topics and Exam Focus
• Physics: Newton's laws (inertia, force, acceleration), kinetic energy vs. potential energy,
heat transfer, and wave properties (electromagnetic, mechanical).
• Chemistry: Atomic structure (protons, neutrons, electrons), periodic table trends,
states of matter, and chemical bonds.
• Earth Science: Plate tectonics (convergent, divergent, transform boundaries), rock
cycle, atmosphere layers, solar system, and climate/weather.
• Scientific Inquiry: Distinguishing between hypothesis, theory, and law; identifying
independent, dependent, and control variables in a lab vs. observation study.
Q1. Which choice best defines a conceptual model? [Multiple Choice]
A) a verbal or graphical explanation for how a system works or is organized
B) A physical representation of an object or prototype
C) one or more equations that represent the way a system or process works
D) A law that always explains cause and effect
Answer: a verbal or graphical explanation for how a system works or is organized
Explanation: A conceptual model uses words, diagrams, or flowcharts to explain the structure or function
of a system and to clarify relationships without formal equations. Distractors: “physical representation”
refers to a tangible model, not a conceptual one; “one or more equations” defines a mathematical model,
which formalizes relationships numerically; “a testable prediction” is a hypothesis and not a model type
per se.
Q2. What is the definition of precision in measurement? [Multiple Choice]
A) a measure of how close a series of measurements are to one another
1
, B) an organized way of gathering and analyzing evidence about nature
C) a scientific method of expressing magnitudes or quantities using base units
D) the study of living organisms and their processes
Answer: a measure of how close a series of measurements are to one another
Explanation: Precision refers to the consistency or repeatability of measurements—how tightly clustered
repeated observations are—even if they are not near the true value. Distractors: “An organized way of
gathering evidence” defines science in general; “a scientific method of expressing magnitudes” refers to SI
units; “the study of living things” is life science. None of these describe the consistency-focused concept of
precision.
Q3. Which definition most accurately describes astronomy? [Multiple Choice]
A) The study of the moon, stars, and other objects in space
B) The study of atoms and molecules and their bonds
C) The study of Earth's internal structure and surface processes
D) The study of living organisms and ecosystems
Answer: The study of the moon, stars, and other objects in space
Explanation: Astronomy studies celestial objects such as the moon, stars, planets, and other bodies in
space, and their properties and behaviors. Distractors: “study of atoms and molecules” is chemistry and
focuses on matter at molecular scales; “study of living things” is life science and concerns biology; “Earth's
structure and composition” is earth science focused on our planet rather than outer space.
Q4. Which statement correctly describes a physical model? [Multiple Choice]
A) A physical representation of an object. Prototypes and appearance models are physical
models.
B) a verbal or graphical explanation for how a system works or is organized
C) one or more equations that represent the way a system or process works
D) A testable prediction often implied by a theory
Answer: A physical representation of an object. Prototypes and appearance models are physical
models.
Explanation: Physical models are tangible representations used to study form, fit, or function—examples
include prototypes and appearance models that mimic the physical object. Distractors: “a verbal or
graphical explanation” defines a conceptual model, not a physical one; “one or more equations” defines a
mathematical model; “a testable prediction” defines a hypothesis. These describe different model types or
scientific elements, not physical representations.
Q5. Which statement captures the definition of science? [Multiple Choice]
2
, A) An organized way of gathering and analyzing evidence about the natural world.
B) The study of living things and their interactions
C) A measure of how close a series of measurements are to one another
D) A physical representation of an object or prototype
Answer: An organized way of gathering and analyzing evidence about the natural world.
Explanation: Science is a systematic method for collecting observations and testing ideas—gathering and
analyzing evidence to build reliable knowledge about nature. Distractors: “study of living things” defines
life science (a branch of science) but not science itself; “a measure of how close measurements are to one
another” defines precision, not science; “a physical representation of an object” defines a physical model,
not the scientific method as a whole.
Q6. Which phrase defines life science? [Multiple Choice]
A) the study of living things
B) the study of atoms and molecules and their interactions
C) the study of forces, energy, and motion
D) the study of Earth's structure and composition
Answer: the study of living things
Explanation: Life science (biology) studies organisms, their structure, function, growth, origin, evolution,
and interactions. Distractors: “the study of atoms and molecules” is chemistry and focuses on nonliving
matter at molecular scales; “the study of forces, energy, motion” is physics and focuses on physical laws;
“Earth's structure and composition” is earth science and focuses on planetary processes, not organisms.
Q7. Which description best matches earth science? [Multiple Choice]
A) Earth's structure and composition, as well as the processes that change Earth, such as
volcanic and seismic activity.
B) the study of atoms and molecules and how they react to form substances
C) the study of forces, energy, and motion in the universe
D) the study of the moon, stars, and other objects in space
Answer: Earth's structure and composition, as well as the processes that change Earth, such as
volcanic and seismic activity.
Explanation: Earth science concerns the planet’s makeup (structure and composition) and dynamic
processes (for example, volcanism and seismicity) that modify it. Distractors: “study of forces, energy,
motion” is physics and addresses general physical laws; “study of atoms and molecules” is chemistry and
focuses on microscopic matter; “study of the moon, stars, and other objects in space” is astronomy and
focuses on celestial bodies rather than Earth-specific processes.
3
, Q8. Which statement correctly describes the SI system? [Multiple Choice]
A) is a scientific method of expressing the magnitudes or quantities of important natural
phenomena. There are seven base units in the system, from which other units are derived.
Universal for comparing data.
B) a measure of how close a series of measurements are to one another
C) a testable prediction often implied by a theory
D) an organized way of gathering and analyzing evidence about the natural world
Answer: is a scientific method of expressing the magnitudes or quantities of important natural
phenomena. There are seven base units in the system, from which other units are derived.
Universal for comparing data.
Explanation: The SI (International System of Units) provides standardized base units and derived units to
quantify natural phenomena so measurements are comparable worldwide. Distractors: “a measure of how
close measurements are” defines precision, not SI; “a testable prediction” defines a hypothesis; “an
organized way of gathering evidence” defines science. These do not describe a standardized system of
units.
Q9. Which statement best defines a control in an experiment? [Multiple Choice]
A) In an experiment, the standard that is used for comparison
B) what is being changed during an experiment
C) what is being measured as the outcome
D) a spontaneous change with no experimental control
Answer: In an experiment, the standard that is used for comparison
Explanation: A control provides a baseline or standard to compare experimental outcomes against; it
isolates the effect of the independent variable by showing what happens when that variable is absent or
held at a standard. Distractors: “what is being changed” is the independent variable; “what is being
measured” is the dependent variable; “only one variable manipulated” describes the controlled experiment
method rather than the role of a control baseline.
Q10. Which phrase defines the dependent variable? [Multiple Choice]
A) what is being measured
B) what is being changed
C) the standard used for comparison in an experiment
D) an experiment design where all variables are uncontrolled
Answer: what is being measured
Explanation: The dependent variable is the outcome or response that is observed and recorded; it depends
on changes made to the independent variable. Distractors: “what is being changed” is the independent
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