WGU C165 OA Exam Integrated Physical
Sciences OA Complete Questions and Guide
Answers, 100% Verified Graded A+
Question 1
Which branch of physical science studies forces, energy, and motion?
A) Chemistry
B) Earth science
C) Physics
D) Astronomy
Correct Answer: C
Rationale: Physics is the branch of physical science focused on forces, energy, and motion,
encompassing the fundamental laws governing the physical universe .
Question 2
Which branch of physical science is primarily concerned with the study of atoms, molecules,
and their interactions?
A) Chemistry
B) Physics
C) Earth science
D) Astronomy
Correct Answer: A
Rationale: Chemistry is the study of matter at the atomic and molecular level, including its
structure, properties, and the reactions that transform substances .
Question 3
Earth science is best described as the study of:
A) The universe and celestial bodies
B) Forces and energy
C) The Earth's structure, composition, and the processes that change it
D) The properties of atoms and molecules
,Correct Answer: C
Rationale: Earth science focuses on the Earth system, including its geology, atmosphere, and
oceans, and the processes that shape its surface and interior .
Question 4
Which term describes something that tentatively assumes what happens or how it happens to
test it?
A) Law
B) Hypothesis
C) Theory
D) Observation
Correct Answer: B
Rationale: A hypothesis is a proposed explanation for an observation that can be tested through
experimentation. It is a tentative assumption made to test its validity .
Question 5
Which of the following is an example of a scientific law?
A) Objects with mass attract each other
B) The Earth revolves around the Sun because of gravity
C) Force equals mass times acceleration (F = ma)
D) All living things are made of cells
Correct Answer: C
Rationale: A scientific law is a concise, often mathematical, statement of a fundamental
relationship in nature. Newton's second law of motion (F = ma) is a prime example .
Question 6
What quality identifies a scientific statement as testable?
A) It is logical
B) It is observable
C) It can be tested for falseness
D) It is interesting
Correct Answer: C
,Rationale: A scientific statement must be falsifiable—meaning it can be proven false through
observation or experimentation. This is a key criterion for scientific inquiry .
Question 7
Which type of model is a verbal or graphical explanation for how a system works or is
organized?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Scale model
Correct Answer: C
Rationale: A conceptual model uses words, diagrams, or flowcharts to explain the structure or
function of a system. It provides a verbal or graphical explanation .
Question 8
Which type of model is Newton's second law of motion (F = ma), which explains the relationship
between force, mass, and acceleration?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Scale model
Correct Answer: B
Rationale: A mathematical model uses equations or formulas to represent the way a system or
process works. F = ma is a formula and an example of a mathematical model .
Question 9
Which type of model is a picture of the solar system an example of?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Scale model
Correct Answer: C
, Rationale: A picture or diagram of the solar system is a conceptual model because it shows
essential features in a way that can be easily understood .
Question 10
Which type of model is a light bulb used to model the sun as a source of energy an example of?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Theoretical model
Correct Answer: A
Rationale: A physical model is a physical representation of an object or system. A light bulb
modeling the sun is a physical model that can be used to demonstrate energy emission .
Experimental Design & Variables
Question 11
A student notices that a metal spoon left in a hot cup of coffee becomes warm. The student
proposes that heat is transferred from the coffee to the spoon. Which type of scientific idea is
this proposal?
A) Law
B) Theory
C) Hypothesis
D) Observation
Correct Answer: C
Rationale: A hypothesis is a testable, proposed explanation for an observation. The student's
explanation for why the spoon warms can be tested through further experimentation .
Question 12
In measuring the distance at each time, what is the independent variable?
A) Distance
B) Time
C) Speed
D) Acceleration
Sciences OA Complete Questions and Guide
Answers, 100% Verified Graded A+
Question 1
Which branch of physical science studies forces, energy, and motion?
A) Chemistry
B) Earth science
C) Physics
D) Astronomy
Correct Answer: C
Rationale: Physics is the branch of physical science focused on forces, energy, and motion,
encompassing the fundamental laws governing the physical universe .
Question 2
Which branch of physical science is primarily concerned with the study of atoms, molecules,
and their interactions?
A) Chemistry
B) Physics
C) Earth science
D) Astronomy
Correct Answer: A
Rationale: Chemistry is the study of matter at the atomic and molecular level, including its
structure, properties, and the reactions that transform substances .
Question 3
Earth science is best described as the study of:
A) The universe and celestial bodies
B) Forces and energy
C) The Earth's structure, composition, and the processes that change it
D) The properties of atoms and molecules
,Correct Answer: C
Rationale: Earth science focuses on the Earth system, including its geology, atmosphere, and
oceans, and the processes that shape its surface and interior .
Question 4
Which term describes something that tentatively assumes what happens or how it happens to
test it?
A) Law
B) Hypothesis
C) Theory
D) Observation
Correct Answer: B
Rationale: A hypothesis is a proposed explanation for an observation that can be tested through
experimentation. It is a tentative assumption made to test its validity .
Question 5
Which of the following is an example of a scientific law?
A) Objects with mass attract each other
B) The Earth revolves around the Sun because of gravity
C) Force equals mass times acceleration (F = ma)
D) All living things are made of cells
Correct Answer: C
Rationale: A scientific law is a concise, often mathematical, statement of a fundamental
relationship in nature. Newton's second law of motion (F = ma) is a prime example .
Question 6
What quality identifies a scientific statement as testable?
A) It is logical
B) It is observable
C) It can be tested for falseness
D) It is interesting
Correct Answer: C
,Rationale: A scientific statement must be falsifiable—meaning it can be proven false through
observation or experimentation. This is a key criterion for scientific inquiry .
Question 7
Which type of model is a verbal or graphical explanation for how a system works or is
organized?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Scale model
Correct Answer: C
Rationale: A conceptual model uses words, diagrams, or flowcharts to explain the structure or
function of a system. It provides a verbal or graphical explanation .
Question 8
Which type of model is Newton's second law of motion (F = ma), which explains the relationship
between force, mass, and acceleration?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Scale model
Correct Answer: B
Rationale: A mathematical model uses equations or formulas to represent the way a system or
process works. F = ma is a formula and an example of a mathematical model .
Question 9
Which type of model is a picture of the solar system an example of?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Scale model
Correct Answer: C
, Rationale: A picture or diagram of the solar system is a conceptual model because it shows
essential features in a way that can be easily understood .
Question 10
Which type of model is a light bulb used to model the sun as a source of energy an example of?
A) Physical model
B) Mathematical model
C) Conceptual model
D) Theoretical model
Correct Answer: A
Rationale: A physical model is a physical representation of an object or system. A light bulb
modeling the sun is a physical model that can be used to demonstrate energy emission .
Experimental Design & Variables
Question 11
A student notices that a metal spoon left in a hot cup of coffee becomes warm. The student
proposes that heat is transferred from the coffee to the spoon. Which type of scientific idea is
this proposal?
A) Law
B) Theory
C) Hypothesis
D) Observation
Correct Answer: C
Rationale: A hypothesis is a testable, proposed explanation for an observation. The student's
explanation for why the spoon warms can be tested through further experimentation .
Question 12
In measuring the distance at each time, what is the independent variable?
A) Distance
B) Time
C) Speed
D) Acceleration
