1
WGU C165 INTEGRATED PHYSICAL SCIENCES
OBJECTIVE ASSESSMENT STUDY GUIDE | LATEST
UPDATE 2026/2027 | PRACTICE QUESTIONS AND
ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS
This comprehensive practice examination is designed for students preparing for
the WGU C165 Integrated Physical Sciences Objective Assessment. It serves as a
complete study guide and exam review, reflecting the latest update for 2026/2027.
The questions are meticulously crafted to mirror the difficulty, scenario-based
style, and scope of the assessment, covering all essential domains including
scientific inquiry, physics, chemistry, earth science, and astronomy. By engaging
with these practice questions and answers, candidates can assess readiness,
identify knowledge gaps, and reinforce critical physical science concepts. The
detailed rationales provide verified solutions, ensuring deep comprehension and
enhancing preparation for this competency-based assessment.
Table of Contents
1. Foundations of Science and Scientific Inquiry
2. Physics: Motion, Forces, and Energy
3. Physics: Waves, Electricity, and Magnetism
4. Chemistry: Matter, Atoms, and Reactions
5. Earth Science: Structure, Processes, and Weather
6. Astronomy and Earth's Place in the Universe
, 2
Question 1: Which branch of science is primarily concerned with the study of
forces, energy, and motion?
A) Earth Science
B) Chemistry
C) Physics
D) Biology
Correct Answer: C
Physics focuses on the fundamental principles of the universe, including motion,
energy, and the forces that govern interactions. Chemistry and Earth science
address matter and planetary processes, but not motion and force at their core.
Biology is the study of living organisms.
Question 2: Chemistry is best defined as the study of:
A) The Earth's crust and internal processes
B) Atoms, molecules, and their interactions
C) The motion of objects under forces
D) Energy transfer in ecosystems
Correct Answer: B
Chemistry examines the building blocks of matter—atoms and molecules—their
structures, reactions, and transformations. Unlike physics, which studies forces, or
Earth science, which studies geologic processes, chemistry focuses on substances
and their changes.
Question 3: Which of the following is not an essential attribute of science?
, 3
A) Relies on testable ideas
B) Uses observations and experiments
C) Accepts claims without evidence if widely believed
D) Leads to further questions and research
Correct Answer: C
Science demands testability, evidence, peer review, and openness to revision.
Claims without evidence contradict the principle of falsification and are outside
the scope of science.
Question 4: In an experiment testing plant growth under different light colors, the
independent variable is:
A) Height of the plant
B) Color of light used
C) Number of leaves produced
D) Soil composition kept constant
Correct Answer: B
The independent variable is deliberately changed (light color). The dependent
variable (plant height, leaves) responds to the change, while soil composition is a
control variable.
Question 5: A researcher observes dolphin behavior in the ocean without
interfering. This is an example of a:
A) Hypothesis
B) Experimental study
, 4
C) Observational study
D) Computer model
Correct Answer: C
Observational studies involve recording phenomena as they naturally occur,
without manipulation. This contrasts with experiments, which involve changing
independent variables.
Question 6: Which type of model would best help scientists visualize the structure
of an atom?
A) Physical model
B) Conceptual model
C) Mathematical model
D) Computer model
Correct Answer: B
Atoms are too small to be seen directly; conceptual models (like the Bohr model or
electron cloud diagrams) help represent abstract structures.
Question 7: Which principle states that only statements capable of being proven
false through evidence are scientific?
A) Hypothesis principle
B) Theory of relativity
C) Principle of falsification
D) Law of conservation
WGU C165 INTEGRATED PHYSICAL SCIENCES
OBJECTIVE ASSESSMENT STUDY GUIDE | LATEST
UPDATE 2026/2027 | PRACTICE QUESTIONS AND
ANSWERS | EXAM REVIEW | 100% CORRECT
ANSWERS | VERIFIED SOLUTIONS
This comprehensive practice examination is designed for students preparing for
the WGU C165 Integrated Physical Sciences Objective Assessment. It serves as a
complete study guide and exam review, reflecting the latest update for 2026/2027.
The questions are meticulously crafted to mirror the difficulty, scenario-based
style, and scope of the assessment, covering all essential domains including
scientific inquiry, physics, chemistry, earth science, and astronomy. By engaging
with these practice questions and answers, candidates can assess readiness,
identify knowledge gaps, and reinforce critical physical science concepts. The
detailed rationales provide verified solutions, ensuring deep comprehension and
enhancing preparation for this competency-based assessment.
Table of Contents
1. Foundations of Science and Scientific Inquiry
2. Physics: Motion, Forces, and Energy
3. Physics: Waves, Electricity, and Magnetism
4. Chemistry: Matter, Atoms, and Reactions
5. Earth Science: Structure, Processes, and Weather
6. Astronomy and Earth's Place in the Universe
, 2
Question 1: Which branch of science is primarily concerned with the study of
forces, energy, and motion?
A) Earth Science
B) Chemistry
C) Physics
D) Biology
Correct Answer: C
Physics focuses on the fundamental principles of the universe, including motion,
energy, and the forces that govern interactions. Chemistry and Earth science
address matter and planetary processes, but not motion and force at their core.
Biology is the study of living organisms.
Question 2: Chemistry is best defined as the study of:
A) The Earth's crust and internal processes
B) Atoms, molecules, and their interactions
C) The motion of objects under forces
D) Energy transfer in ecosystems
Correct Answer: B
Chemistry examines the building blocks of matter—atoms and molecules—their
structures, reactions, and transformations. Unlike physics, which studies forces, or
Earth science, which studies geologic processes, chemistry focuses on substances
and their changes.
Question 3: Which of the following is not an essential attribute of science?
, 3
A) Relies on testable ideas
B) Uses observations and experiments
C) Accepts claims without evidence if widely believed
D) Leads to further questions and research
Correct Answer: C
Science demands testability, evidence, peer review, and openness to revision.
Claims without evidence contradict the principle of falsification and are outside
the scope of science.
Question 4: In an experiment testing plant growth under different light colors, the
independent variable is:
A) Height of the plant
B) Color of light used
C) Number of leaves produced
D) Soil composition kept constant
Correct Answer: B
The independent variable is deliberately changed (light color). The dependent
variable (plant height, leaves) responds to the change, while soil composition is a
control variable.
Question 5: A researcher observes dolphin behavior in the ocean without
interfering. This is an example of a:
A) Hypothesis
B) Experimental study
, 4
C) Observational study
D) Computer model
Correct Answer: C
Observational studies involve recording phenomena as they naturally occur,
without manipulation. This contrasts with experiments, which involve changing
independent variables.
Question 6: Which type of model would best help scientists visualize the structure
of an atom?
A) Physical model
B) Conceptual model
C) Mathematical model
D) Computer model
Correct Answer: B
Atoms are too small to be seen directly; conceptual models (like the Bohr model or
electron cloud diagrams) help represent abstract structures.
Question 7: Which principle states that only statements capable of being proven
false through evidence are scientific?
A) Hypothesis principle
B) Theory of relativity
C) Principle of falsification
D) Law of conservation
