WGU C165
WGU C165 EXAM QUESTIONS WITH
CORRECT ANSWERS 2025
Explain what is meant by the physical sciences. How are they different from life
sciences? What disciplines make up the physical sciences? -Correct Answer ✔Physical
science studies non-living systems, as opposed to life science, which studies living
systems. Physics, chemistry, and Earth and space sciences are all physical sciences.
A scientist who studies how different sediments, rocks, and soil have formed the
landscapes and natural structures that we see on Earth are included in the field of
_______ -Correct Answer ✔earth science
_________ that have formed the landscapes and natural structures that we see on Earth
are included in the field of Earth science. -Correct Answer ✔Sediments, rocks, and soil
It may surprise you to learn that Hollywood stunt designers must often perform complex
calculations before a stunt can be carried out. These equations are used to determine
the forces acting on the objects involved in the stunt and to predict their motions. Stunt
designers and performers must therefore know a lot about ______ -Correct Answer
✔physics
________ equations are used to determine how fast a stunt person needs to drive a car
to perform a stunt like the car jump shown in the photo. The hood of the car in the
photo is going to be damaged and the driver could be seriously hurt (so don't try this at
home!). To prevent driver injury, the jumping and landing ramps on movie sets have
specially designed suspension systems. Designing these systems also requires an
understanding of physics. -Correct Answer ✔Physics
Soft drink manufacturers rely on an understanding of _____ to develop and analyze their
beverages. -Correct Answer ✔chemistry
WGU C165
,WGU C165
Chemistry is the study of ______, their structures, and their interactions to form new
substances. -Correct Answer ✔atoms and molecules
Which of the following would NOT be a primary investigation in physics?
A. what reactions occur that cause wood to burn in a fireplace
B. what keeps a bicycle from falling over
C. how rainbows form
D. why you can skate across ice -Correct Answer ✔A. Wood burning involves chemical
reactions with oxygen, which can be explained using chemistry.
Which of the following is a primary investigation in chemistry?
a. why stars "twinkle"
b. why people sprinkle salt on icy roads
Image of salt on an icy road
c. why bananas turn brown
d. why tides occur -Correct Answer ✔B and C
WGU C165
, WGU C165
Bananas turn brown because certain chemicals inside them break down substances that
make bananas hard and green, and replace them with chemicals that make bananas soft
and yellow.
The use of salt on ice is explained by chemistry. The particles of salt push water
molecules apart, making it harder for ice to form.
Which of the following is a primary investigation in Earth science? (Select all that apply.)
a. the composition of Earth's interior
b. the formation of mountain ranges, both above and under the ocean
c. how magnetism can be used to image the body
d. animal and plant life on an island in the Pacific Ocean -Correct Answer ✔A and B
(The study of how magnetism can be used to image the body is not part of Earth
science. Animal and plant life are studied mostly in life sciences)
A scientist is studying how ice crystals form in cirrus (thin, wispy) clouds. Which field(s)
of science is she studying?
physics
Earth science
WGU C165
WGU C165 EXAM QUESTIONS WITH
CORRECT ANSWERS 2025
Explain what is meant by the physical sciences. How are they different from life
sciences? What disciplines make up the physical sciences? -Correct Answer ✔Physical
science studies non-living systems, as opposed to life science, which studies living
systems. Physics, chemistry, and Earth and space sciences are all physical sciences.
A scientist who studies how different sediments, rocks, and soil have formed the
landscapes and natural structures that we see on Earth are included in the field of
_______ -Correct Answer ✔earth science
_________ that have formed the landscapes and natural structures that we see on Earth
are included in the field of Earth science. -Correct Answer ✔Sediments, rocks, and soil
It may surprise you to learn that Hollywood stunt designers must often perform complex
calculations before a stunt can be carried out. These equations are used to determine
the forces acting on the objects involved in the stunt and to predict their motions. Stunt
designers and performers must therefore know a lot about ______ -Correct Answer
✔physics
________ equations are used to determine how fast a stunt person needs to drive a car
to perform a stunt like the car jump shown in the photo. The hood of the car in the
photo is going to be damaged and the driver could be seriously hurt (so don't try this at
home!). To prevent driver injury, the jumping and landing ramps on movie sets have
specially designed suspension systems. Designing these systems also requires an
understanding of physics. -Correct Answer ✔Physics
Soft drink manufacturers rely on an understanding of _____ to develop and analyze their
beverages. -Correct Answer ✔chemistry
WGU C165
,WGU C165
Chemistry is the study of ______, their structures, and their interactions to form new
substances. -Correct Answer ✔atoms and molecules
Which of the following would NOT be a primary investigation in physics?
A. what reactions occur that cause wood to burn in a fireplace
B. what keeps a bicycle from falling over
C. how rainbows form
D. why you can skate across ice -Correct Answer ✔A. Wood burning involves chemical
reactions with oxygen, which can be explained using chemistry.
Which of the following is a primary investigation in chemistry?
a. why stars "twinkle"
b. why people sprinkle salt on icy roads
Image of salt on an icy road
c. why bananas turn brown
d. why tides occur -Correct Answer ✔B and C
WGU C165
, WGU C165
Bananas turn brown because certain chemicals inside them break down substances that
make bananas hard and green, and replace them with chemicals that make bananas soft
and yellow.
The use of salt on ice is explained by chemistry. The particles of salt push water
molecules apart, making it harder for ice to form.
Which of the following is a primary investigation in Earth science? (Select all that apply.)
a. the composition of Earth's interior
b. the formation of mountain ranges, both above and under the ocean
c. how magnetism can be used to image the body
d. animal and plant life on an island in the Pacific Ocean -Correct Answer ✔A and B
(The study of how magnetism can be used to image the body is not part of Earth
science. Animal and plant life are studied mostly in life sciences)
A scientist is studying how ice crystals form in cirrus (thin, wispy) clouds. Which field(s)
of science is she studying?
physics
Earth science
WGU C165
