WGU C165: INTEGRATED PHYSICAL
SCIENCES Objective Assessment Actual
Questions and Verified Answers
(2026/2027)
Domain 1: Physics and Motion
Q1: A cyclist travels 150 kilometers in 2.5 hours. What is the average speed of the
cyclist?
A. 50 km/h
B. 60 km/h [CORRECT]
C. 375 km/h
D. 60 m/s
Correct Answer: B
Rationale: Average speed is calculated by dividing total distance by total time: 150 km ÷
2.5 hours = 60 km/h. Answer A results from dividing time by distance. Answer C results
from multiplying distance and time. Answer D incorrectly converts units (60 km/h ≈ 16.7
m/s, not 60 m/s).
Q2: A 12 kg box is pushed with a horizontal force of 48 N across a frictionless floor.
What is the acceleration of the box?
A. 0.25 m/s²
B. 4 m/s² [CORRECT]
C. 48 m/s²
D. 576 m/s²
Correct Answer: B
,Rationale: Newton's second law states F = ma, which can be rearranged to a = F/m.
Therefore, a = 48 N ÷ 12 kg = 4 m/s². Answer A results from dividing mass by force.
Answer C uses the force value without division by mass. Answer D results from
multiplying force and mass.
Q3: Which of Newton's laws explains why a book remains at rest on a table until an
external force moves it?
A. First law (law of inertia) [CORRECT]
B. Second law (F = ma)
C. Third law (action-reaction)
D. Law of universal gravitation
Correct Answer: A
Rationale: Newton's first law states that an object at rest stays at rest unless acted upon
by an unbalanced force (inertia). The second law (B) relates force, mass, and
acceleration of moving objects. The third law (C) describes paired forces. The law of
gravitation (D) describes attractive forces between masses.
Q4: When a rocket launches, hot gases are expelled downward, causing the rocket to
move upward. Which law explains this motion?
A. First law
B. Second law
C. Third law (action-reaction) [CORRECT]
D. Law of conservation of energy
Correct Answer: C
Rationale: Newton's third law states that for every action force (gases pushing down),
there is an equal and opposite reaction force (rocket pushing up). While the second law
(B) describes the resulting acceleration, the equal and opposite nature of the forces is
the third law.
Q5: A construction worker lifts a 40 kg bag of cement to a height of 1.5 meters. How
much work is done against gravity? (Use g = 9.8 m/s²)
A. 26.7 J
, B. 60 J
C. 588 J [CORRECT]
D. 882 J
Correct Answer: C
Rationale: Work is calculated as W = F × d = (m × g) × h. First calculate force: 40 kg × 9.8
m/s² = 392 N. Then work: 392 N × 1.5 m = 588 J. Answer A results from dividing instead
of multiplying. Answer B uses 40 × 1.5 without gravity. Answer D incorrectly uses 60 kg
instead of 40 kg.
Q6: If the worker in the previous question completes this lift in 3 seconds, what is the
power output?
A. 196 W [CORRECT]
B. 294 W
C. 588 W
D. 1764 W
Correct Answer: A
Rationale: Power is calculated as P = W/t. Using the work calculated previously (588 J):
588 J ÷ 3 s = 196 W. Answer B incorrectly divides 588 by 2. Answer C uses the work
value without dividing by time. Answer D multiplies work by time.
Q7: A car accelerates from 0 to 30 m/s in 10 seconds. What is the average
acceleration?
A. 0.33 m/s²
B. 3 m/s² [CORRECT]
C. 300 m/s²
D. 3 m/s
Correct Answer: B
Rationale: Acceleration is the change in velocity divided by time: a = (30 m/s - 0 m/s) ÷
10 s = 3 m/s². Answer A results from dividing time by velocity change. Answer C results
from multiplying velocity and time. Answer D uses incorrect units (speed, not
acceleration).
SCIENCES Objective Assessment Actual
Questions and Verified Answers
(2026/2027)
Domain 1: Physics and Motion
Q1: A cyclist travels 150 kilometers in 2.5 hours. What is the average speed of the
cyclist?
A. 50 km/h
B. 60 km/h [CORRECT]
C. 375 km/h
D. 60 m/s
Correct Answer: B
Rationale: Average speed is calculated by dividing total distance by total time: 150 km ÷
2.5 hours = 60 km/h. Answer A results from dividing time by distance. Answer C results
from multiplying distance and time. Answer D incorrectly converts units (60 km/h ≈ 16.7
m/s, not 60 m/s).
Q2: A 12 kg box is pushed with a horizontal force of 48 N across a frictionless floor.
What is the acceleration of the box?
A. 0.25 m/s²
B. 4 m/s² [CORRECT]
C. 48 m/s²
D. 576 m/s²
Correct Answer: B
,Rationale: Newton's second law states F = ma, which can be rearranged to a = F/m.
Therefore, a = 48 N ÷ 12 kg = 4 m/s². Answer A results from dividing mass by force.
Answer C uses the force value without division by mass. Answer D results from
multiplying force and mass.
Q3: Which of Newton's laws explains why a book remains at rest on a table until an
external force moves it?
A. First law (law of inertia) [CORRECT]
B. Second law (F = ma)
C. Third law (action-reaction)
D. Law of universal gravitation
Correct Answer: A
Rationale: Newton's first law states that an object at rest stays at rest unless acted upon
by an unbalanced force (inertia). The second law (B) relates force, mass, and
acceleration of moving objects. The third law (C) describes paired forces. The law of
gravitation (D) describes attractive forces between masses.
Q4: When a rocket launches, hot gases are expelled downward, causing the rocket to
move upward. Which law explains this motion?
A. First law
B. Second law
C. Third law (action-reaction) [CORRECT]
D. Law of conservation of energy
Correct Answer: C
Rationale: Newton's third law states that for every action force (gases pushing down),
there is an equal and opposite reaction force (rocket pushing up). While the second law
(B) describes the resulting acceleration, the equal and opposite nature of the forces is
the third law.
Q5: A construction worker lifts a 40 kg bag of cement to a height of 1.5 meters. How
much work is done against gravity? (Use g = 9.8 m/s²)
A. 26.7 J
, B. 60 J
C. 588 J [CORRECT]
D. 882 J
Correct Answer: C
Rationale: Work is calculated as W = F × d = (m × g) × h. First calculate force: 40 kg × 9.8
m/s² = 392 N. Then work: 392 N × 1.5 m = 588 J. Answer A results from dividing instead
of multiplying. Answer B uses 40 × 1.5 without gravity. Answer D incorrectly uses 60 kg
instead of 40 kg.
Q6: If the worker in the previous question completes this lift in 3 seconds, what is the
power output?
A. 196 W [CORRECT]
B. 294 W
C. 588 W
D. 1764 W
Correct Answer: A
Rationale: Power is calculated as P = W/t. Using the work calculated previously (588 J):
588 J ÷ 3 s = 196 W. Answer B incorrectly divides 588 by 2. Answer C uses the work
value without dividing by time. Answer D multiplies work by time.
Q7: A car accelerates from 0 to 30 m/s in 10 seconds. What is the average
acceleration?
A. 0.33 m/s²
B. 3 m/s² [CORRECT]
C. 300 m/s²
D. 3 m/s
Correct Answer: B
Rationale: Acceleration is the change in velocity divided by time: a = (30 m/s - 0 m/s) ÷
10 s = 3 m/s². Answer A results from dividing time by velocity change. Answer C results
from multiplying velocity and time. Answer D uses incorrect units (speed, not
acceleration).
