C165 OA EXAM QUESTIONS WITH NEW
UPDATE SOLUTIONS
/. Explain what is meant by the physical sciences. How are they different from life
sciences? What disciplines make up the physical sciences? - 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
_______ - Answer-earth science
/._________ that have formed the landscapes and natural structures that we see on
Earth are included in the field of Earth science. - 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 ______ -
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. - Answer-Physics
/.Soft drink manufacturers rely on an understanding of _____ to develop and analyze
their beverages. - Answer-chemistry
/.Chemistry is the study of ______, their structures, and their interactions to form new
substances. - 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 - 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 - Answer-B and C
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 - 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
both of these - Answer-Ice crystals formation in clouds requires knowledge of both
physics and atmospheric science
UPDATE SOLUTIONS
/. Explain what is meant by the physical sciences. How are they different from life
sciences? What disciplines make up the physical sciences? - 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
_______ - Answer-earth science
/._________ that have formed the landscapes and natural structures that we see on
Earth are included in the field of Earth science. - 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 ______ -
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. - Answer-Physics
/.Soft drink manufacturers rely on an understanding of _____ to develop and analyze
their beverages. - Answer-chemistry
/.Chemistry is the study of ______, their structures, and their interactions to form new
substances. - 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 - 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 - Answer-B and C
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 - 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
both of these - Answer-Ice crystals formation in clouds requires knowledge of both
physics and atmospheric science
