WGU C165 Integrated Physical Sciences OA Exam Study Guide 2026/2027 | Practice Questions & Detailed Solutions

WGU C165 Integrated Physical Sciences OA
Exam Study Guide 2026/2027 | Practice
Questions & Detailed Solutions

WGU C165 INTEGRATED PHYSICAL SCIENCES OA EXAM STUDY GUIDE 2026/2027

Practice Questions & Detailed Solutions



DOCUMENT OVERVIEW

• Comprehensive Practice Resource: 200 carefully crafted multiple-choice
questions spanning all WGU C165 exam domains with detailed explanations for
every answer to reinforce learning and test comprehension.

• Strategic Study Method: Use these questions to identify knowledge gaps,
practice test-taking strategies, and build confidence by reviewing rationales
thoroughly—each explanation builds foundational understanding needed for exam
success.




QUESTION 1

What is the SI unit of force?

A) Joule

B) Kilogram

C) Newton

D) Pascal

E) Watt

CORRECT ANSWER: C) Newton

Rationale: The Newton (N) is the SI unit of force, defined as the force required to
accelerate a mass of one kilogram at a rate of one meter per second squared (1 N =
1 kg⋅m/s²). The Joule measures energy, the Kilogram measures mass, the Pascal

,measures pressure, and the Watt measures power—none of these are units of
force.



QUESTION 2

Which of the following is an example of uniform motion?

A) A car accelerating on a highway

B) A ball thrown upward against gravity

C) A train traveling at constant velocity on a straight track

D) A pendulum swinging back and forth

E) A spinning top slowing down due to friction

CORRECT ANSWER: C) A train traveling at constant velocity on a straight track

Rationale: Uniform motion occurs when an object travels at a constant velocity
(constant speed and direction). A train moving at constant velocity on a straight
track exhibits this property. All other options involve acceleration or changing
velocity: cars accelerating change speed, thrown balls experience gravitational
acceleration, pendulums change direction and speed, and spinning tops decelerate
due to friction.



QUESTION 3

According to Newton's Second Law of Motion, acceleration is:

A) Inversely proportional to force and proportional to mass

B) Directly proportional to force and inversely proportional to mass

C) Independent of both force and mass

D) Proportional to the square of the force

E) Directly proportional to both force and mass

,CORRECT ANSWER: B) Directly proportional to force and inversely
proportional to mass

Rationale: Newton's Second Law states F = ma, which can be rearranged to a =
F/m. This demonstrates that acceleration is directly proportional to the net force
applied (greater force produces greater acceleration) and inversely proportional to
mass (greater mass produces less acceleration for the same force). The other
options incorrectly describe this fundamental relationship.



QUESTION 4

What is the primary difference between speed and velocity?

A) Speed is faster than velocity

B) Speed is a vector quantity; velocity is scalar

C) Velocity includes direction information; speed does not

D) Speed measures acceleration; velocity measures distance

E) There is no difference between speed and velocity

CORRECT ANSWER: C) Velocity includes direction information; speed does not

Rationale: Speed is a scalar quantity that only describes how fast an object is
moving (magnitude only), while velocity is a vector quantity that includes both
speed and direction. For example, "60 miles per hour" is a speed, while "60 miles
per hour north" is a velocity. Option B incorrectly reverses the definitions.



QUESTION 5

An object at rest remains at rest unless acted upon by an external force. This
describes:

A) Newton's Second Law

B) Newton's First Law of Motion

C) Newton's Third Law

, D) The Law of Conservation of Momentum

E) Gravitational Law

CORRECT ANSWER: B) Newton's First Law of Motion

Rationale: Newton's First Law of Motion (the Law of Inertia) states that an object
will remain in its state of motion unless acted upon by an external, unbalanced
force. This is a foundational principle explaining inertia and why objects don't
spontaneously change their motion. The other laws and principles address
different aspects of motion and force.



QUESTION 6

If a 2 kg object is pushed with a force of 10 N, what is its acceleration?

A) 2 m/s²

B) 5 m/s²

C) 10 m/s²

D) 20 m/s²

E) 0.2 m/s²

CORRECT ANSWER: B) 5 m/s²

Rationale: Using Newton's Second Law (F = ma), we can solve for acceleration: a =
F/m = 10 N / 2 kg = 5 m/s². This demonstrates the inverse relationship between
mass and acceleration when force is constant.



QUESTION 7

What is the definition of friction?

A) The force that keeps objects moving in a circle

B) The force that opposes motion between two surfaces in contact

C) The force that pulls all objects toward Earth