Energy

Forms and Conversion

ENERGYthe ability to do work

WORKis done when you

use a force to cause motion

WORKa force is moved

through a distance

“CLUES” – Types of Energy

• Kinetic Energy• Gravitational Potential Energy• Elastic Potential Energy• Chemical Energy• Thermal Energy• Electrical Energy• Nuclear Energy• Radiant Energy

Kinetic Energy

• Energy of motion• Examples:

KE = ½*M*V2

Gravitational Potential Energy• Stored energy that depends on an

object’s height• Examples:

GPE = M*g*H

Thermal Energy

• Energy of heat• Examples:

Chemical Potential Energy

• Stored energy in chemical bonds in compounds

• When released, energy can do work

• Examples:

Elastic Potential Energy

• Stored energy of a compressed or stretched object

• Examples:

Electrical Energy

• Energy associated with electrical charges

• Examples:

Nuclear Energy

• Energy stored within nucleus of an atom

• Examples:

Radiant Energy

• Energy that travels through space in waves

• Electromagnetic Spectrum• Examples:

Sound

• Form of kinetic energy• – movement of energy throughsubstances in the form of waves

Energy Conversion Cards

• Front:• Form of Energy

• Back:• 3 examples

On either side include:• Picture of one of the examples

Practice on Your Own

• Energy Tracker: Jerome’s Story

Conversion

To change from one form to another

Remember the 8 forms of energy…

• A squirrel is walking along a telephone wire and then he falls off.

• I stretch a rubber band, aim it at a student, and let it go.

• An electric toaster is used to make toast.

• A parked car begins to roll down the hill.

• You jump up on a trampoline.

• You plug in the microwave and turn it on.

• A cloud is full of water. • Eventually, raindrops fall from the

sky.

• You flip on a light switch and the lights come on.

• Sunlight makes a flower grow.

• You eat a Power Bar before running the mile.

• A coal-burning power plant produces electricity.

• Person is standing on a diving board.

• They jump off.

• A Roller Coaster goes up and down hills.

• Gasoline in a car is burned and the car moves.

• You light the coals in a grill, then cook a hotdog.

• A nuclear reactor is used to make electricity.

• I plug in a fan and turn it on.

• I plug in an electric blender and turn it on.

• Then I eat the delicious milkshake.

• The sun causes carrots to grow.• A bunny eats the carrots and hops

around.

• A basketball rebounds off the rim and hits the ground.