Fall Semester 2025 | C165 – Integrated Physical
Science (WGU) Full Study Guide & Competency
Assessment Prep Bundle | Updated 2024–2025 WGU
C165 Physical Science Review, Core Scientific
Concepts, Worked Examples, Practice Questions,
Exam Insights & Mastery Notes
C165 – INTEGRATED PHYSICAL SCIENCE EXAM WITH COMPLETE QUESTIONS AND
WELL-ELABORATED SOLUTIONS
Actual Real Exam Questions and Answers | Practice Exam Test Bank and Study Guide |
Professional Certification Review
Overview
The C165 – Integrated Physical Science exam is designed to assess students'
understanding of fundamental concepts within the realms of physical science. This
exam is crucial for learners preparing for certification and assessments, ensuring they
grasp essential principles of physics, chemistry, and earth sciences. By mastering the
content in this exam, students will solidify their knowledge and enhance their problem-
solving skills, crucial for academic and professional success.
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 reviews + explanations
Core Content Areas
1. Physics Basics (20 questions)
2. Chemistry Fundamentals (30 questions)
, 3. Earth Science Concepts (25 questions)
4. Energy and Thermodynamics (20 questions)
5. Forces and Motion (25 questions)
6. Fluid Mechanics (15 questions)
7. Waves and Sound (15 questions)
8. Light and Optics (15 questions)
9. Atomic Structure and the Periodic Table (15 questions)
10. Chemical Reactions (20 questions)
Answer Format
Verified correct answers provided in bold green with step-by-step rationales, evidence-
based explanations, intervention pathways, and concept clarifications.
Exam Questions and Answers
Question 1: Which of the following best describes the scientific method?
A) A series of steps that scientists use to answer questions
B) A set of rules that must be followed in experiments
C) A document that records scientific findings
D) A summary of all scientific knowledge
CORRECT ANSWER: A) A series of steps that scientists use to answer questions
Rationale:
The scientific method is a systematic process that involves observation, hypothesis
formation, experimentation, and conclusion. This approach allows scientists to gather
empirical data and draw valid conclusions.
Question 2: What is the primary factor that determines the state of matter?
A) Temperature
B) Pressure
C) Chemical composition
D) Molecular arrangement
CORRECT ANSWER: D) Molecular arrangement
,Rationale:
The state of matter (solid, liquid, gas) is primarily determined by the arrangement of
molecules. In solids, molecules are closely packed in a fixed position, while in liquids,
they are close but can move past each other, and in gases, they are far apart and move
freely.
Question 3: In a chemical reaction, which of the following is true?
A) Matter is created
B) Matter is destroyed
C) Matter is conserved
D) Energy is neither created nor destroyed
CORRECT ANSWER: C) Matter is conserved
Rationale:
According to the law of conservation of mass, matter can neither be created nor
destroyed in a chemical reaction. Instead, the total mass of the reactants equals the
total mass of the products.
Question 4: Which of the following is a characteristic of acids?
A) They have a bitter taste.
B) They turn litmus paper blue.
C) They produce hydrogen ions in solution.
D) They are slippery to the touch.
CORRECT ANSWER: C) They produce hydrogen ions in solution.
Rationale:
Acids are substances that increase the concentration of hydrogen ions (H⁺) in a
solution. This property is what gives them their acidic characteristics, such as sour
taste and ability to turn litmus paper red.
Question 5: What is the primary force that keeps planets in orbit around the sun?
A) Electromagnetic force
B) Gravitational force
C) Nuclear force
D) Frictional force
CORRECT ANSWER: B) Gravitational force
Rationale:
The gravitational force, as described by Isaac Newton's law of universal gravitation, is
the primary force that attracts planets toward the sun, keeping them in orbit.
, Question 6: Which of the following particles is negatively charged?
A) Proton
B) Neutron
C) Electron
D) Nucleus
CORRECT ANSWER: C) Electron
Rationale:
Electrons are subatomic particles with a negative charge. Protons are positively
charged, and neutrons have no charge.
Question 7: What is the main purpose of the scientific theory?
A) To explain a specific phenomenon
B) To summarize experimental results
C) To propose laws
D) To generate new hypotheses
CORRECT ANSWER: A) To explain a specific phenomenon
Rationale:
Scientific theories provide explanations based on a body of evidence and can predict
future results. They are broader than hypotheses and incorporate a wider range of
observations.
Question 8: Which of the following states of matter has a definite shape and
volume?
A) Gas
B) Liquid
C) Solid
D) Plasma
CORRECT ANSWER: C) Solid
Rationale:
Solids maintain both a definite shape and volume due to the fixed position of their
closely packed molecules.
Question 9: What is the term for the temperature at which a substance changes
from liquid to gas?
Science (WGU) Full Study Guide & Competency
Assessment Prep Bundle | Updated 2024–2025 WGU
C165 Physical Science Review, Core Scientific
Concepts, Worked Examples, Practice Questions,
Exam Insights & Mastery Notes
C165 – INTEGRATED PHYSICAL SCIENCE EXAM WITH COMPLETE QUESTIONS AND
WELL-ELABORATED SOLUTIONS
Actual Real Exam Questions and Answers | Practice Exam Test Bank and Study Guide |
Professional Certification Review
Overview
The C165 – Integrated Physical Science exam is designed to assess students'
understanding of fundamental concepts within the realms of physical science. This
exam is crucial for learners preparing for certification and assessments, ensuring they
grasp essential principles of physics, chemistry, and earth sciences. By mastering the
content in this exam, students will solidify their knowledge and enhance their problem-
solving skills, crucial for academic and professional success.
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 reviews + explanations
Core Content Areas
1. Physics Basics (20 questions)
2. Chemistry Fundamentals (30 questions)
, 3. Earth Science Concepts (25 questions)
4. Energy and Thermodynamics (20 questions)
5. Forces and Motion (25 questions)
6. Fluid Mechanics (15 questions)
7. Waves and Sound (15 questions)
8. Light and Optics (15 questions)
9. Atomic Structure and the Periodic Table (15 questions)
10. Chemical Reactions (20 questions)
Answer Format
Verified correct answers provided in bold green with step-by-step rationales, evidence-
based explanations, intervention pathways, and concept clarifications.
Exam Questions and Answers
Question 1: Which of the following best describes the scientific method?
A) A series of steps that scientists use to answer questions
B) A set of rules that must be followed in experiments
C) A document that records scientific findings
D) A summary of all scientific knowledge
CORRECT ANSWER: A) A series of steps that scientists use to answer questions
Rationale:
The scientific method is a systematic process that involves observation, hypothesis
formation, experimentation, and conclusion. This approach allows scientists to gather
empirical data and draw valid conclusions.
Question 2: What is the primary factor that determines the state of matter?
A) Temperature
B) Pressure
C) Chemical composition
D) Molecular arrangement
CORRECT ANSWER: D) Molecular arrangement
,Rationale:
The state of matter (solid, liquid, gas) is primarily determined by the arrangement of
molecules. In solids, molecules are closely packed in a fixed position, while in liquids,
they are close but can move past each other, and in gases, they are far apart and move
freely.
Question 3: In a chemical reaction, which of the following is true?
A) Matter is created
B) Matter is destroyed
C) Matter is conserved
D) Energy is neither created nor destroyed
CORRECT ANSWER: C) Matter is conserved
Rationale:
According to the law of conservation of mass, matter can neither be created nor
destroyed in a chemical reaction. Instead, the total mass of the reactants equals the
total mass of the products.
Question 4: Which of the following is a characteristic of acids?
A) They have a bitter taste.
B) They turn litmus paper blue.
C) They produce hydrogen ions in solution.
D) They are slippery to the touch.
CORRECT ANSWER: C) They produce hydrogen ions in solution.
Rationale:
Acids are substances that increase the concentration of hydrogen ions (H⁺) in a
solution. This property is what gives them their acidic characteristics, such as sour
taste and ability to turn litmus paper red.
Question 5: What is the primary force that keeps planets in orbit around the sun?
A) Electromagnetic force
B) Gravitational force
C) Nuclear force
D) Frictional force
CORRECT ANSWER: B) Gravitational force
Rationale:
The gravitational force, as described by Isaac Newton's law of universal gravitation, is
the primary force that attracts planets toward the sun, keeping them in orbit.
, Question 6: Which of the following particles is negatively charged?
A) Proton
B) Neutron
C) Electron
D) Nucleus
CORRECT ANSWER: C) Electron
Rationale:
Electrons are subatomic particles with a negative charge. Protons are positively
charged, and neutrons have no charge.
Question 7: What is the main purpose of the scientific theory?
A) To explain a specific phenomenon
B) To summarize experimental results
C) To propose laws
D) To generate new hypotheses
CORRECT ANSWER: A) To explain a specific phenomenon
Rationale:
Scientific theories provide explanations based on a body of evidence and can predict
future results. They are broader than hypotheses and incorporate a wider range of
observations.
Question 8: Which of the following states of matter has a definite shape and
volume?
A) Gas
B) Liquid
C) Solid
D) Plasma
CORRECT ANSWER: C) Solid
Rationale:
Solids maintain both a definite shape and volume due to the fixed position of their
closely packed molecules.
Question 9: What is the term for the temperature at which a substance changes
from liquid to gas?
