WGU C165
Objective Assessment Final Exam 2026 | Integrated
Physical Sciences | Practice Questions, Answers &
Detailed Explanations
WHAT'S INCLUDED
• WGU C165 Integrated Physical Sciences practice
questions
• C165 Objective Assessment exam preparation
• Practice questions with answers
• Detailed explanations/rationales
, WGU C165 Objective Assessment Final Exam
2026 | Integrated Physical Sciences | Practice
Questions, Answers & Detailed Explanations
1. Physics is the study of:
A. forces, energy, and motion
B. chemical bonds and reactions
C. living organisms and their interactions
D. Earth’s rocks and minerals
Answer: A
Rationale: Physics is defined as the study of forces, energy, and
motion.
2. A controlled experiment is an experiment in which a
scientist:
A. observes systems as they appear in nature
B. intentionally changes one quantity and observes how another
quantity changes
C. studies objects only outside a laboratory
D. uses a computer to predict weather
Answer: B
Rationale: This is the definition of a controlled experiment.
,3. The variable that is changed by the experimenter is the:
A. dependent variable
B. control variable
C. independent variable
D. constant variable
Answer: C
Rationale: The independent variable is changed by the
experimenter.
4. The variable that changes because of the independent
variable is the:
A. control variable
B. independent variable
C. constant variable
D. dependent variable
Answer: D
Rationale: The dependent variable responds to changes in the
independent variable.
5. A variable that scientists do not wish to study and that
must be eliminated or kept constant is a:
A. control variable
B. independent variable
C. dependent variable
, D. correlated variable
Answer: A
Rationale: Control variables are kept constant or eliminated.
6. Experiments in which systems are observed as they appear
in nature, without researchers changing them, are:
A. controlled experiments
B. observational studies
C. laboratory studies
D. mathematical models
Answer: B
Rationale: Observational studies observe systems without
attempting to change them.
7. Observational studies done outside of a laboratory setting
are called:
A. laboratory studies
B. controlled experiments
C. field studies
D. computer models
Answer: C
Rationale: Field studies are observational studies conducted
outside a laboratory.
Objective Assessment Final Exam 2026 | Integrated
Physical Sciences | Practice Questions, Answers &
Detailed Explanations
WHAT'S INCLUDED
• WGU C165 Integrated Physical Sciences practice
questions
• C165 Objective Assessment exam preparation
• Practice questions with answers
• Detailed explanations/rationales
, WGU C165 Objective Assessment Final Exam
2026 | Integrated Physical Sciences | Practice
Questions, Answers & Detailed Explanations
1. Physics is the study of:
A. forces, energy, and motion
B. chemical bonds and reactions
C. living organisms and their interactions
D. Earth’s rocks and minerals
Answer: A
Rationale: Physics is defined as the study of forces, energy, and
motion.
2. A controlled experiment is an experiment in which a
scientist:
A. observes systems as they appear in nature
B. intentionally changes one quantity and observes how another
quantity changes
C. studies objects only outside a laboratory
D. uses a computer to predict weather
Answer: B
Rationale: This is the definition of a controlled experiment.
,3. The variable that is changed by the experimenter is the:
A. dependent variable
B. control variable
C. independent variable
D. constant variable
Answer: C
Rationale: The independent variable is changed by the
experimenter.
4. The variable that changes because of the independent
variable is the:
A. control variable
B. independent variable
C. constant variable
D. dependent variable
Answer: D
Rationale: The dependent variable responds to changes in the
independent variable.
5. A variable that scientists do not wish to study and that
must be eliminated or kept constant is a:
A. control variable
B. independent variable
C. dependent variable
, D. correlated variable
Answer: A
Rationale: Control variables are kept constant or eliminated.
6. Experiments in which systems are observed as they appear
in nature, without researchers changing them, are:
A. controlled experiments
B. observational studies
C. laboratory studies
D. mathematical models
Answer: B
Rationale: Observational studies observe systems without
attempting to change them.
7. Observational studies done outside of a laboratory setting
are called:
A. laboratory studies
B. controlled experiments
C. field studies
D. computer models
Answer: C
Rationale: Field studies are observational studies conducted
outside a laboratory.
