WGU C371 CONCEPTS OF SCIENCE EXAM
WITH QUESTIONS AND ANSWERS |EXPERT
VERIFIED
How would you classify a solution of potassium
iodide, KI, in water?
homogeneous mixture
A neutral atom has a mass number of 17 and 8
electrons. Which element is it?
Oxygen
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.
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?
Thermal energy
How would you classify ammonia (NH3)?
compound
WITH QUESTIONS AND ANSWERS |EXPERT
VERIFIED
How would you classify a solution of potassium
iodide, KI, in water?
homogeneous mixture
A neutral atom has a mass number of 17 and 8
electrons. Which element is it?
Oxygen
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.
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?
Thermal energy
How would you classify ammonia (NH3)?
compound
