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WGU C371 CONCEPTS OF
SCIENCE. EXAM BRAND NEW
OFFICIAL QUESTIONS WITH
ANSWERS.
A substance has a low density and fills its container. What is the
physical state of the substance? - correct answer -gas
A substance has a definite volume and takes the shape of its
container. What is the physical state of the substance? - correct
answer -liquid
A substance takes the shape of its container and flows easily. It is
not easily compressible. What is the physical state of the
substance? - correct answer -liquid
Which of the following options best describes this illustration?
(Cube of spheres) - correct answer -solid
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Which event represents a chemical change? - correct answer -A
shovel rusts
Which property is a chemical property? - correct answer -
Flammability
Which property is an extensive property of an iron bar? - correct
answer -length
What does the law of conservation of matter specify? - correct
answer -Total mass stays the same in changes of state.
According to the law of conservation of energy: - correct answer -
Total energy in a closed system is constant.
Exactly one pound of bread dough is placed in a baking tin. The
dough is cooked in an oven at 350ºF, releasing a wonderful
aroma of freshly baked bread during the cooking process. Which
of the following options accurately describes the mass of the
baked loaf? - correct answer -The mass of the baked loaf is less
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than the mass of the one pound of the original dough because a
gas is produced during the baking process. The gas escapes the
dough and is responsible for the aroma of freshly baked bread.
Which of the following options describes a change in potential
energy only? - correct answer -A leopard waits in a tree in order
to more easily seek prey.
As a dropped ball falls to the ground, what is happening? - correct
answer -It is changing potential energy into kinetic energy.
Which situation is most directly associated with kinetic energy? -
correct answer -A bowling ball is rolled down a lane.
The metal bleachers at a football stadium heat up in the sun.
Which of the following options best describes the type of energy
transfer occurring in this situation? - correct answer -Thermal
energy
How would you classify ammonia (NH3)? - correct answer -
compound
WGU C371 CONCEPTS OF
SCIENCE. EXAM BRAND NEW
OFFICIAL QUESTIONS WITH
ANSWERS.
A substance has a low density and fills its container. What is the
physical state of the substance? - correct answer -gas
A substance has a definite volume and takes the shape of its
container. What is the physical state of the substance? - correct
answer -liquid
A substance takes the shape of its container and flows easily. It is
not easily compressible. What is the physical state of the
substance? - correct answer -liquid
Which of the following options best describes this illustration?
(Cube of spheres) - correct answer -solid
, Page | 2
Which event represents a chemical change? - correct answer -A
shovel rusts
Which property is a chemical property? - correct answer -
Flammability
Which property is an extensive property of an iron bar? - correct
answer -length
What does the law of conservation of matter specify? - correct
answer -Total mass stays the same in changes of state.
According to the law of conservation of energy: - correct answer -
Total energy in a closed system is constant.
Exactly one pound of bread dough is placed in a baking tin. The
dough is cooked in an oven at 350ºF, releasing a wonderful
aroma of freshly baked bread during the cooking process. Which
of the following options accurately describes the mass of the
baked loaf? - correct answer -The mass of the baked loaf is less
, Page | 3
than the mass of the one pound of the original dough because a
gas is produced during the baking process. The gas escapes the
dough and is responsible for the aroma of freshly baked bread.
Which of the following options describes a change in potential
energy only? - correct answer -A leopard waits in a tree in order
to more easily seek prey.
As a dropped ball falls to the ground, what is happening? - correct
answer -It is changing potential energy into kinetic energy.
Which situation is most directly associated with kinetic energy? -
correct answer -A bowling ball is rolled down a lane.
The metal bleachers at a football stadium heat up in the sun.
Which of the following options best describes the type of energy
transfer occurring in this situation? - correct answer -Thermal
energy
How would you classify ammonia (NH3)? - correct answer -
compound
