Fall Semester 2025 | C165 – Integrated Physical Science
(WGU) All-Inclusive Study Guide & Competency Exam
Prep Bundle | Updated 2024–2025 WGU C165 Course
Review, Physical Science Foundations, Key Topics
Explained, Practice Questions, Mastery Notes & Full
Exam Support
C165 – Integrated Physical Science (WGU) WITH COMPLETE QUESTIONS AND
WELL-ELABORATED SOLUTIONS
Actual Real Exam Questions and Answers | Practice Exam Test Bank and Study
Guide | Professional Certification Review
Overview
This exam is designed to assess knowledge and understanding in Integrated Physical
Science, equipping learners with the necessary skills for certification and real-world
application. This assessment aims to reinforce concepts across various topics,
developing critical thinking and problem-solving abilities essential in the field.
Key Features
• Actual exam-style questions from recent testing cycles
• Well-elaborated solutions with clinical/academic reasoning
• Comprehensive practice test bank with varied difficulty levels
• Updated guidelines, protocols, and concepts
• Scenario-based applications with real-world contexts
Exam Components
• Actual Exam Questions Bank: 170 questions
• Comprehensive Practice Exam: 50 questions
• Study Guide Section: Concept review + detailed explanations
Core Content Areas
1. Matter and Its Properties - 20 questions
2. Energy Transfer and Conservation - 25 questions
3. Forces and Motion - 30 questions
4. Waves and Sound - 20 questions
, 5. Electricity and Magnetism - 25 questions
6. Chemical Reactions - 25 questions
7. Earth and Space Science - 15 questions
8. Scientific Inquiry and Method - 10 questions
Answer Format
Verified correct answers will be provided in bold green with step-by-step rationales,
evidence-based explanations, intervention pathways, and concept clarifications.
Exam Questions and Answers
Question 1
What is the primary force acting on an object in free fall?
A. Friction
B. Tension
C. Gravity
D. Normal Force
Correct Option: C. Gravity
Rationale: Gravity is the force that attracts two bodies toward each other, and it is the
only force acting on an object in free fall, neglecting air resistance.
Question 2
Which of the following describes the law of conservation of energy?
A. Energy can be created, but not destroyed.
B. Energy cannot be created or destroyed, only transformed.
C. Energy can be destroyed.
D. Energy is only found in mechanical forms.
Correct Option: B. Energy cannot be created or destroyed, only transformed.
Rationale: This principle states that the total energy in a closed system remains
constant, meaning energy can change forms (e.g., from kinetic to potential) but cannot
be created or eliminated.
,Question 3
What type of reaction is represented by the following equation: 2H₂ + O₂ → 2H₂O?
A. Decomposition
B. Synthesis
C. Single Replacement
D. Double Replacement
Correct Option: B. Synthesis
Rationale: A synthesis reaction occurs when two or more reactants combine to form a
single product, exemplified by hydrogen and oxygen forming water.
Question 4
Which of the following does NOT affect the rate of a chemical reaction?
A. Temperature
B. Concentration of reactants
C. The color of the reactants
D. Surface area
Correct Option: C. The color of the reactants
Rationale: While temperature, concentration, and surface area can influence reaction
rates, the color of the reactants does not affect the speed or outcome of a chemical
reaction.
Question 5
What is the pH level of pure water at 25°C?
A. 0
B. 7
C. 14
D. Neither A nor C
Correct Option: B. 7
Rationale: Pure water has a neutral pH of 7, indicating a balance between hydrogen
ions (H⁺) and hydroxide ions (OH⁻).
Question 6
Which law states that pressure increases as the volume decreases, assuming
temperature is constant?
, A. Ideal Gas Law
B. Boyle’s Law
C. Charles's Law
D. Avogadro’s Law
Correct Option: B. Boyle’s Law
Rationale: Boyle’s Law explains the inverse relationship between pressure and volume
in a gas, with temperature held constant.
Question 7
In an experiment, what role does the control group play?
A. It receives the experimental treatment.
B. It is isolated from external conditions.
C. It serves as a baseline for comparison.
D. It introduces variability to the experiment.
Correct Option: C. It serves as a baseline for comparison.
Rationale: The control group is essential for determining the effect of independent
variables by providing a standard to compare results.
Question 8
What is the primary component of Earth's atmosphere?
A. Nitrogen
B. Oxygen
C. Carbon Dioxide
D. Argon
Correct Option: A. Nitrogen
Rationale: Nitrogen makes up about 78% of Earth's atmosphere, making it the most
abundant gas.
Question 9
Which type of wave requires a medium to travel through?
A. Electromagnetic Waves
B. Mechanical Waves
C. Surface Waves
D. Longitudinal Waves
(WGU) All-Inclusive Study Guide & Competency Exam
Prep Bundle | Updated 2024–2025 WGU C165 Course
Review, Physical Science Foundations, Key Topics
Explained, Practice Questions, Mastery Notes & Full
Exam Support
C165 – Integrated Physical Science (WGU) WITH COMPLETE QUESTIONS AND
WELL-ELABORATED SOLUTIONS
Actual Real Exam Questions and Answers | Practice Exam Test Bank and Study
Guide | Professional Certification Review
Overview
This exam is designed to assess knowledge and understanding in Integrated Physical
Science, equipping learners with the necessary skills for certification and real-world
application. This assessment aims to reinforce concepts across various topics,
developing critical thinking and problem-solving abilities essential in the field.
Key Features
• Actual exam-style questions from recent testing cycles
• Well-elaborated solutions with clinical/academic reasoning
• Comprehensive practice test bank with varied difficulty levels
• Updated guidelines, protocols, and concepts
• Scenario-based applications with real-world contexts
Exam Components
• Actual Exam Questions Bank: 170 questions
• Comprehensive Practice Exam: 50 questions
• Study Guide Section: Concept review + detailed explanations
Core Content Areas
1. Matter and Its Properties - 20 questions
2. Energy Transfer and Conservation - 25 questions
3. Forces and Motion - 30 questions
4. Waves and Sound - 20 questions
, 5. Electricity and Magnetism - 25 questions
6. Chemical Reactions - 25 questions
7. Earth and Space Science - 15 questions
8. Scientific Inquiry and Method - 10 questions
Answer Format
Verified correct answers will be provided in bold green with step-by-step rationales,
evidence-based explanations, intervention pathways, and concept clarifications.
Exam Questions and Answers
Question 1
What is the primary force acting on an object in free fall?
A. Friction
B. Tension
C. Gravity
D. Normal Force
Correct Option: C. Gravity
Rationale: Gravity is the force that attracts two bodies toward each other, and it is the
only force acting on an object in free fall, neglecting air resistance.
Question 2
Which of the following describes the law of conservation of energy?
A. Energy can be created, but not destroyed.
B. Energy cannot be created or destroyed, only transformed.
C. Energy can be destroyed.
D. Energy is only found in mechanical forms.
Correct Option: B. Energy cannot be created or destroyed, only transformed.
Rationale: This principle states that the total energy in a closed system remains
constant, meaning energy can change forms (e.g., from kinetic to potential) but cannot
be created or eliminated.
,Question 3
What type of reaction is represented by the following equation: 2H₂ + O₂ → 2H₂O?
A. Decomposition
B. Synthesis
C. Single Replacement
D. Double Replacement
Correct Option: B. Synthesis
Rationale: A synthesis reaction occurs when two or more reactants combine to form a
single product, exemplified by hydrogen and oxygen forming water.
Question 4
Which of the following does NOT affect the rate of a chemical reaction?
A. Temperature
B. Concentration of reactants
C. The color of the reactants
D. Surface area
Correct Option: C. The color of the reactants
Rationale: While temperature, concentration, and surface area can influence reaction
rates, the color of the reactants does not affect the speed or outcome of a chemical
reaction.
Question 5
What is the pH level of pure water at 25°C?
A. 0
B. 7
C. 14
D. Neither A nor C
Correct Option: B. 7
Rationale: Pure water has a neutral pH of 7, indicating a balance between hydrogen
ions (H⁺) and hydroxide ions (OH⁻).
Question 6
Which law states that pressure increases as the volume decreases, assuming
temperature is constant?
, A. Ideal Gas Law
B. Boyle’s Law
C. Charles's Law
D. Avogadro’s Law
Correct Option: B. Boyle’s Law
Rationale: Boyle’s Law explains the inverse relationship between pressure and volume
in a gas, with temperature held constant.
Question 7
In an experiment, what role does the control group play?
A. It receives the experimental treatment.
B. It is isolated from external conditions.
C. It serves as a baseline for comparison.
D. It introduces variability to the experiment.
Correct Option: C. It serves as a baseline for comparison.
Rationale: The control group is essential for determining the effect of independent
variables by providing a standard to compare results.
Question 8
What is the primary component of Earth's atmosphere?
A. Nitrogen
B. Oxygen
C. Carbon Dioxide
D. Argon
Correct Option: A. Nitrogen
Rationale: Nitrogen makes up about 78% of Earth's atmosphere, making it the most
abundant gas.
Question 9
Which type of wave requires a medium to travel through?
A. Electromagnetic Waves
B. Mechanical Waves
C. Surface Waves
D. Longitudinal Waves
