CHM1025C Module One: Sample Exam Homework Answers
Part
E: Energy/Forms of Energy 5 points
1.
Define Energy:
Energy is the ability to do work
2.
What is the
difference between the two types of energy: potential and kinetic energy?
Kinetic Energy (KE) is the energy matter has as a result of motion
Potential Energy (PE) is the stored energy matter possesses and a
result of position or composition.
3.
List the six different forms of energy as an
energy wheel as stated in the book:
|
Heat Energy may be defined
as Thermal
Energy Light Energy may be defined
as Radiant
Energy Some
books list Sound Energy as a seventh form, while other books list Magnetic Energy as a form. Figure 4 |
4.
Define the
Law of Conservation of Energy:
The
principle that states that energy may neither be created nor destroyed, but can
be changed from one form to another.
5.
Reword the
Law of Conservation of Energy into the first law of thermodynamics:
The Total Energy of the Universe is a Constant!
Which state of matter has the
lowest kinetic energy?
Solids (Ignoring the Plasma state of matter, Gases have the
highest kinetic energy)
6.
What is the
“Heat Death Theory of the Universe”?
All forms of energy may be transformed into
heat energy, but not all heat energy may be converted back to the other forms.
(This is also known as the 2nd law of
thermodynamics: The entropy of the universe is increasing!)
Bonus:
Define Gravitational Energy; Tidal Energy; Sound Energy;
Magnetic Energy; Radiant Energy; Dark Energy
Use the Internet
to define these forms of energy.