WELCOME BACK MINIONS!!!Time to learn some science!!!

REVIEW…• Energy

• The ability to do work or cause change.• Work

• The transfer of energy.• Power

• The rate at which work is done• Kinetic Energy

• Energy of motion.• Formula for Kinetic Energy

REVIEW• Define Potential Energy

• Stored energy that results from the position or shape of an object.

• What are 2 types of Potential Energy• Gravitational and Elastic Potential Energy

• Formula For Gravitational Potential Energy

• What factors affect Kinetic Energy?• Mass and Velocity

• What factors affect Potential Energy?• Height and Weight

MECHANICAL ENERGY

• Add an object’s Potential Energy to its Kinetic Energy and you have MECHANICAL ENERGY!!!

ENERGY TYPE #2• Examples:

• Melting Ice Cream• Evaporating Water• Molten Rock

• Thermal Energy• The total Potential and Kinetic energy of atomic

particles.

ENERGY TYPE #3• Examples:

• Scoot across a carpet and shocking someone• Lightning• Power in your home to run appliances

• Electrical Energy• The energy of electrical charges

ENERGY TYPE #4• Examples:

• Found in foods you eat• Found in objects around you• Found in all molecules!

• Chemical Energy• Energy stored or released from chemical bonds in

molecules

ENERGY TYPE #5• Examples:

• Fission (breaking apart a nucleus of an atom)• Fusion (Making a nucleus bigger by collision)• Without this, no sun or sunshine!!!

• Nuclear Energy• Energy stored or released in the nucleus of an atom

ENERGY TYPE #6• Examples:

• Light so we can see• Microwaves to heat our food• X-Rays to see if any bones were broken

• Electromagnetic Energy• Waves that have both electrical and magnetic

properties

WARM-UP• Give an example of the following:

• Mechanical Energy• Thermal Energy• Chemical Energy• Electrical Energy• Nuclear Energy• Electromagnetic Energy

INTRODUCTION…• How do power plants make electricity?

• How does your body make energy?

• How does your cell phone battery give your cell phone power?

ENERGY TRANSFORMATIONS

• Most forms of energy can be transformed into other forms!

• Energy Transformation- A change from one form of energy to another.

SINGLE TRANSFORMATIONS

• What does this term mean?

• One transformation• Toaster = Electrical to Thermal• Cell Phone = Electrical to Electromagnetic• YOU! = Chemical to Mechanical

MULTIPLE TRANSFORMATIONS

• What does this term mean?

• Multiple Transformations• Match =

• Mechanical to …• Thermal to… • Chemical to… • Thermal to… • Light!

MULTIPLE TRANSFORMATIONS

• You try one!

TRANSFORMATIONS BETWEEN…KINETIC & POTENTIAL

ENERGY!

TRANSFORMATIONS BETWEEN…KINETIC & POTENTIAL

ENERGY!

TRANSFORMATIONS BETWEEN…

KINETIC & POTENTIALENERGY!

CONSERVATION OF ENERGY

• Law of Conservation of Energy

• Energy cannot be created nor destroyed.

• One form of energy transforms into another, no energy is “destroyed” in the process.

ENERGY & FRICTION

ENERGY & MATTER• Einstein discovered that matter can be transformed

into energy!

• Destroying a small amount of matter releases a great amount of energy!

• Matter and energy together must be conserved!• (Cannot be turned to nothingness!)

CLOSING…• How does a car transform energy?

• How does Juggling transform back and forth between potential to kinetic?

• Why doesn’t a top keep spinning?• What happens to the energy?