1. Chemical potential energy
Day
Topic: Energy Types and Transformations
Objective: Analyze examples of energy changing from one form to another within or between systems.
Science Starter: The Burning Dorito
Station:
Sketch the object
Action
Result
Energy Transformation
Burning Dorito
A dorito is exposed to a flame
With PF 6.1 exercise
Chemical potential energy To
Heat energy
The dorito
smolders

2. Agenda Starter Brief Notes
Practice Identifying Systems & Energy Transfer
-shoulder partner
-whole class

3. Energy Vocabulary:
Potential Energy stored energy due to position or condition.
Types of Potential Energy
Gravitational Potential Energy- GPE or (Eg).
Picture
Elastic Potential Energy- EPE or (Eel).
Chemical Potential Energy- CPE or (Ec). y
A slinky / spring is stretched…
and released…
MORE Eg y
LESS Eg

4. B. Kinetic Energy KE or (Ek) is energy of motion.
C. Thermal Energy (Etherm) is energy stored in the motion of the molecules.
D. Mechanical Energy ME or (Em) energy due to its motion (KE) and its stored energy of position (PE).
Temperature Change
Friction
Friction Causes the
ball to slow & stop

5. Analyzing a System’s ENERGY
Define the SYSTEM (Object of Interest)
Define the ENVIRONMENT
Everything outside of the system
Define the Process
Process: the change in the system, from an initial state to some final state.
A slinky / spring is stretched…
And
Released…

6. PF 6.1