Forms of Energy

What is energy??? Energy –The ability to do work. There are

8 forms of energy.

Chemical

Nuclear

Elastic

Gravitational

Mechanical

Heat

Electrical

Electromagnetic

Forms of EnergyMechanical Energy

Energy of moving objects

Examples:

Running Tornadoes Sound

Forms of EnergyHeat Energy

The motion of atoms in a substance

Examples:

Lava Stove Boiling Water

Forms of EnergyElectrical Energy

The movement of electrons

Examples:

Electricity Lightning Northern Lights

Forms of EnergyElectromagnetic Energy

All types of light or electromagnetic waves

Examples:

Light X-Rays Radio waves

Forms of EnergyChemical Energy

Energy that bonds atoms together in all objects

–released when bonds are broken in chemical

reactions

Examples:

Fuels Firewood Food

Forms of EnergyNuclear Energy

Energy that holds the nucleus of all atoms together–released when nucleus is split or fused with another–most concentrated form of energy in the universeExamples:

The sunNuclear power

Nuclear bombs

Forms of EnergyElastic Energy

Energy in an object due to a change in shape

Examples:

Sling shot Spring Trampoline

Forms of EnergyGravitational Energy

Energy in an object above the ground

Examples:

Skydiver Waterfall Rock Climber

Before we begin . . . A couple of questions

Is energy always active???

Can energy be stored???

Two States of Energy Kinetic Energy – energy that is active, currently

doing something. Anything in motion.

-waves, electrons, atoms, objects

Potential –stored energy (inactive)

–anything that has the possibility of releasing energy

has potential energy

All Energy Is

PotentialChemical

Nuclear

Elastic

Gravitational

KineticMechanical

Heat

Electrical

Electromagnetic

OR

A few things to think about…• Where does energy come from?

• Where does energy go when you use it?

• Can you make energy?

• Can you destroy energy?

The Law of Conservation of Energy

Energy can’t be created or destroyed, it can only be

changed.

What does this mean?

We don’t make energy, we just change it to a form we

can use!

Energy is constantly changing its form!