Download Energy

Today’s Agenda…
Get clickers before you sit down
Bellringer: Mixtures do not have
substances in fixed amounts. Explain
what this means.
Notes on Energy – Study Pack #1
Discuss Energy Worksheet from
yesterday – Study Pack #2
Energy
Study Pack #1
Today’s Goals…
I can explain what energy is.
I can identify different forms of energy.
I can explain the law of conservation of
energy.
What do you already
know?
True or False
Energy can cause changes in the
environment
 There are many types of energy
 Energy can move from one object to
another
 When one type of energy is transformed
into a new form, some of the energy is lost

What is energy?
Energy is the ability to cause change

Examples on page 162
Energy can cause chemical changes to
occur
Energy can change your motion and
help you to do work
Forms of Energy
Energy occurs in many forms
Kinetic, potential, thermal, chemical,
nuclear, mechanical, light, electrical
Energy Transfer and
Transformations
Energy can be transferred (moved) from
place to place and object to object
Energy can be transformed (changed
from one type of energy to another)
Energy Transfer and
Transformations
Energy is stored in your muscles as
chemical energy, when you push down
on a bicycle pedal the energy is
transferred to the bicycle and
transformed into energy of motion
Other examples on page 163
Law of
Conservation of Energy
Energy CANNOT be created or destroyed
It can only be changed from one form to
another and the amount stays the same
Sometimes energy appears to have been
“lost” when heat is produced, but actually it
has only been changed into thermal energy
Law of
Conservation of Energy
When a book slides across the table
and eventually stops, it seems to have
“lost” energy, but the energy of motion
was just changed to the energy of heat
What did you learn?
True or False
Energy can cause changes in the
environment
 There are many types of energy
 Energy can move from one object to
another
 When one type of energy is transformed
into a new form, some of the energy is lost
