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

WARM-UP

• Give an example of the following:• Mechanical Energy• Thermal Energy• Chemical Energy• Electrical Energy• Nuclear Energy• Electromagnetic Energy

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

get a shock touching a doorknob

• 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 atoms!

• 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

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

•Power Plant…

MULTIPLE TRANSFORMATIONS

•You try one!

TRANSFORMATIONS BETWEEN…KINETIC & POTENTIAL

ENERGY!

QUICK VIDEO TO WATCH…

http://en.wikipedia.org/wiki/File:Physicsworks.ogg

Check this out!

TRANSFORMATIONS BETWEEN…KINETIC & POTENTIAL

ENERGY!

KINETIC TO POTENTIAL TO KINETIC

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?