Integrated Physical Sciences Exam 2026–2027 | Latest
Objective Assessment Questions & Verified Correct
Answers And Rationales| Complete Physics, Chemistry &
Earth Science Study Guide | Updated OA Exam Prep
Bundle
THIS EXAM INCLUDES :
• Latest WGU C165 OA exam questions
• Verified correct answers with detailed rationales
• Physics, chemistry, and earth science review
• Environmental science and astronomy concepts
• Forces, motion, energy, and matter practice
• Scientific method and scientific inquiry review
• Easy-to-follow study format for quick revision
• Comprehensive Objective Assessment preparation
• Updated 2026–2027 exam-focused content
• Practice material aligned with WGU competency standards
,Physical Science
1. Which branch of science studies forces, energy, and motion?
A) Chemistry
B) Earth science
C) Physics
D) Astronomy
Answer: C – Physics
Rationale: Physics focuses on forces, energy, motion, and the fundamental laws of
nature.
2. What is the base unit of length in the metric system?
A) Kilogram
B) Second
C) Meter
D) Kelvin
Answer: C – Meter
Rationale: The meter is the SI base unit for measuring length.
3. Which type of variable is changed on purpose by the researcher?
A) Dependent variable
B) Control variable
C) Independent variable
D) Constant variable
Answer: C – Independent variable
Rationale: The independent variable is deliberately manipulated to observe its effect.
4. A model that uses mathematical equations to represent physical phenomena is
called:
A) Physical model
, B) Conceptual model
C) Computer model
D) Mathematical model
Answer: D – Mathematical model
Rationale: Mathematical models treat objects/phenomena using mathematical methods.
5. According to the principle of falsification, a scientific statement must be:
A) Proven true
B) Testable and able to be shown false
C) Observable with the naked eye
D) Supported by a law
Answer: B – Testable and able to be shown false
Rationale: Falsifiability means a hypothesis can be disproven by evidence.
6. Which term describes the amount of space an object occupies?
A) Mass
B) Weight
C) Volume
D) Density
Answer: C – Volume
Rationale: Volume is the measure of three-dimensional space an object takes up.
7. A relationship where increasing one variable increases the other is called:
A) Inverse relationship
B) Direct relationship
C) Unrelated relationship
D) Negative correlation
Answer: B – Direct relationship
Rationale: Direct means variables move in the same direction.