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WGU C165 OA EXAM INTEGRATED PHYSICAL SCIENCES
OA ACTUAL EXAM QUESTION BANK 400 QUESTIONS
AND CORRECT DETAILED ANSWERS|ALREADY GRADED
A+||BRAND NEW VERSION!!
Question 61
Which form of energy is stored in chemical bonds?
A. Thermal energy
B. Chemical energy
C. Mechanical energy
D. Nuclear energy
Answer: B. Chemical energy
Rationale: Chemical bonds store potential energy.
Question 62
Which planet is known for extreme winds and blue color?
A. Venus
B. Uranus
C. Neptune
D. Mercury
Answer: C. Neptune
Rationale: Neptune has strong winds and methane atmosphere.
Question 63
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What is the process by which plants lose water vapor?
A. Condensation
B. Transpiration
C. Respiration
D. Sublimation
Answer: B. Transpiration
Rationale: Plants release water vapor through leaves.
Question 64
Which simple machine is a sloped surface used to raise objects?
A. Lever
B. Pulley
C. Inclined plane
D. Wheel and axle
Answer: C. Inclined plane
Rationale: Inclined planes reduce force needed.
Question 65
Which subatomic particle determines an element’s identity?
A. Electron
B. Neutron
C. Proton
D. Isotope
Answer: C. Proton
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Rationale: Atomic number equals proton number.
Question 66
What is the process of one substance dissolving into another?
A. Condensation
B. Solution formation
C. Sublimation
D. Fusion
Answer: B. Solution formation
Rationale: Solutes dissolve into solvents forming solutions.
Question 67
Which planet rotates on its side?
A. Mars
B. Uranus
C. Mercury
D. Venus
Answer: B. Uranus
Rationale: Uranus has extreme axial tilt.
Question 68
What type of wave can travel through empty space?
A. Mechanical wave
B. Seismic wave
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C. Electromagnetic wave
D. Sound wave
Answer: C. Electromagnetic wave
Rationale: Electromagnetic waves require no medium.
Question 69
What is the tendency of an object to resist changes in motion?
A. Momentum
B. Friction
C. Inertia
D. Gravity
Answer: C. Inertia
Rationale: Inertia resists changes in motion.
Question 70
Which Earth layer is broken into tectonic plates?
A. Inner core
B. Outer core
C. Lithosphere
D. Mesosphere
Answer: C. Lithosphere
Rationale: Lithosphere contains crust and upper mantle.
Question 71
pg. 4
WGU C165 OA EXAM INTEGRATED PHYSICAL SCIENCES
OA ACTUAL EXAM QUESTION BANK 400 QUESTIONS
AND CORRECT DETAILED ANSWERS|ALREADY GRADED
A+||BRAND NEW VERSION!!
Question 61
Which form of energy is stored in chemical bonds?
A. Thermal energy
B. Chemical energy
C. Mechanical energy
D. Nuclear energy
Answer: B. Chemical energy
Rationale: Chemical bonds store potential energy.
Question 62
Which planet is known for extreme winds and blue color?
A. Venus
B. Uranus
C. Neptune
D. Mercury
Answer: C. Neptune
Rationale: Neptune has strong winds and methane atmosphere.
Question 63
pg. 1
,2|Page
What is the process by which plants lose water vapor?
A. Condensation
B. Transpiration
C. Respiration
D. Sublimation
Answer: B. Transpiration
Rationale: Plants release water vapor through leaves.
Question 64
Which simple machine is a sloped surface used to raise objects?
A. Lever
B. Pulley
C. Inclined plane
D. Wheel and axle
Answer: C. Inclined plane
Rationale: Inclined planes reduce force needed.
Question 65
Which subatomic particle determines an element’s identity?
A. Electron
B. Neutron
C. Proton
D. Isotope
Answer: C. Proton
pg. 2
,3|Page
Rationale: Atomic number equals proton number.
Question 66
What is the process of one substance dissolving into another?
A. Condensation
B. Solution formation
C. Sublimation
D. Fusion
Answer: B. Solution formation
Rationale: Solutes dissolve into solvents forming solutions.
Question 67
Which planet rotates on its side?
A. Mars
B. Uranus
C. Mercury
D. Venus
Answer: B. Uranus
Rationale: Uranus has extreme axial tilt.
Question 68
What type of wave can travel through empty space?
A. Mechanical wave
B. Seismic wave
pg. 3
, 4|Page
C. Electromagnetic wave
D. Sound wave
Answer: C. Electromagnetic wave
Rationale: Electromagnetic waves require no medium.
Question 69
What is the tendency of an object to resist changes in motion?
A. Momentum
B. Friction
C. Inertia
D. Gravity
Answer: C. Inertia
Rationale: Inertia resists changes in motion.
Question 70
Which Earth layer is broken into tectonic plates?
A. Inner core
B. Outer core
C. Lithosphere
D. Mesosphere
Answer: C. Lithosphere
Rationale: Lithosphere contains crust and upper mantle.
Question 71
pg. 4
