C371: Concepts in Science (WGU)
Exam Questions with Correct
Answers
A substance has a low density and fills its container. What is the physical state of
the substance?
gas
A substance has a definite volume and takes the shape of its container. What is
the physical state of the substance?
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?
liquid
,Which of the following options best describes this illustration?
(Cube of spheres)
solid
Which event represents a chemical change?
A shovel rusts
Which property is a chemical property?
Flammability
Which property is an extensive property of an iron bar?
length
What does the law of conservation of matter specify?
Total mass stays the same in changes of state.
According to the law of conservation of energy:
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?
The mass of the baked loaf is less 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?
A leopard waits in a tree in order to more easily seek prey.
As a dropped ball falls to the ground, what is happening?
It is changing potential energy into kinetic energy.
Which situation is most directly associated with kinetic energy?
A bowling ball is rolled down a lane.
Exam Questions with Correct
Answers
A substance has a low density and fills its container. What is the physical state of
the substance?
gas
A substance has a definite volume and takes the shape of its container. What is
the physical state of the substance?
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?
liquid
,Which of the following options best describes this illustration?
(Cube of spheres)
solid
Which event represents a chemical change?
A shovel rusts
Which property is a chemical property?
Flammability
Which property is an extensive property of an iron bar?
length
What does the law of conservation of matter specify?
Total mass stays the same in changes of state.
According to the law of conservation of energy:
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?
The mass of the baked loaf is less 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?
A leopard waits in a tree in order to more easily seek prey.
As a dropped ball falls to the ground, what is happening?
It is changing potential energy into kinetic energy.
Which situation is most directly associated with kinetic energy?
A bowling ball is rolled down a lane.
