EnergyThe ability to do work or cause

changes in matter

Types of EnergyPotential: Stored energy or the energy of

position

Types of EnergyKinetic: motion energy; the motion of

waves, atoms, molecules, substances, and objects

Forms of EnergyEnergy comes in many forms such as heat, electricity, sound, solar and light.

Energy can be transformed from one kind to another.

Source of Energy

Almost all of the energy on Earth started or originated with the sun.

Energy from the sun is called Solar Energy.

Solar Energy comes in the form of heat or light.

Heat (Thermal) EnergyHeat Energy is measured by temperature.

Light EnergyLight Energy travels in waves that you see.

(.wav)

Sound EnergySound energy

travels in waves that you hear.

Electrical EnergyElectrical Energy is energy caused by the

flow of electric charges through a conductor.

Energy Transformation1. Plants use light energy

from the sun to make food. The light energy has been transformed and stored in the plant matter.

Energy Transformation2. The plants are buried and after millions

of years turn into fossil fuels.

Energy Transformation3. The fossil fuels are burned releasing stored

energy in the form of heat.

Energy Transformation4. The power plant transforms the heat energy

into electrical energy.

Energy Transformation5. The electrical energy is moved from the

power plant to a home. When a lamp is turned on, the electrical energy is changed to light and heat energy.

Energy Quiz

Sample TAKS QuestionWhich of these pictures shows electrical energy

being changed to light and sound energy?A. B.

C. D.

Incorrect AnswerA.

The fire is transforming energy stored in the wood into heat and light energy.

Correct AnswerB.

The television is transforming electrical energy into light and sound.

Incorrect AnswerC.

The toaster is transforming electrical energy to heat energy.

Incorrect AnswerD.

The windmills are transforming wind energy into electrical energy.