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C371 Concepts of Science Questions and
Correct Answers/ Latest Update / Already
Graded
A substance has a low density and fills its container. What is the
physical state of the substance?
Ans: gas
A substance has a definite volume and takes the shape of its container.
What is the physical state of the substance?
Ans: 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?
Ans: liquid
Which of the following options best describes this illustration?
(Cube of spheres)
Ans: solid
Which event represents a chemical change?
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Ans: A shovel rusts
Which property is a chemical property?
Ans: Flammability
Which property is an extensive property of an iron bar?
Ans: length
What does the law of conservation of matter specify?
Ans: Total mass stays the same in changes of state.
According to the law of conservation of energy:
Ans: 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?
Ans: The mass of the baked loaf is less than the mass of the
one pound of the original dough because a gas is produced
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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?
Ans: A leopard waits in a tree in order to more easily seek prey.
As a dropped ball falls to the ground, what is happening?
Ans: It is changing potential energy into kinetic energy.
Which situation is most directly associated with kinetic energy?
Ans: 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?
Ans: Thermal energy
How would you classify ammonia (NH3)?
Ans: compound
All rights reserved © 2025/ 2026 |
C371 Concepts of Science Questions and
Correct Answers/ Latest Update / Already
Graded
A substance has a low density and fills its container. What is the
physical state of the substance?
Ans: gas
A substance has a definite volume and takes the shape of its container.
What is the physical state of the substance?
Ans: 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?
Ans: liquid
Which of the following options best describes this illustration?
(Cube of spheres)
Ans: solid
Which event represents a chemical change?
All rights reserved © 2025/ 2026 |
, Page |2
Ans: A shovel rusts
Which property is a chemical property?
Ans: Flammability
Which property is an extensive property of an iron bar?
Ans: length
What does the law of conservation of matter specify?
Ans: Total mass stays the same in changes of state.
According to the law of conservation of energy:
Ans: 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?
Ans: The mass of the baked loaf is less than the mass of the
one pound of the original dough because a gas is produced
All rights reserved © 2025/ 2026 |
, Page |3
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?
Ans: A leopard waits in a tree in order to more easily seek prey.
As a dropped ball falls to the ground, what is happening?
Ans: It is changing potential energy into kinetic energy.
Which situation is most directly associated with kinetic energy?
Ans: 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?
Ans: Thermal energy
How would you classify ammonia (NH3)?
Ans: compound
All rights reserved © 2025/ 2026 |
