Energy Energy TransformationsTransformations

The Law of Conservation of EnergyEnergy cannot be created or destroyed.

Energy TransformationEnergy only changes from one form

to another.

Chemical Energy Electrical Energy Radiant (Light) Energy

The energy starts as one type (the energy it USES)

The energy ends as a different type (the energy it GIVES)

Electrical Energy Light Energy

(Radiant)

Rubbing your hands together USESmechanical energy (movement)

and GIVES thermal energy (heat) your hands start feeling warm

Eating food USES chemical energy

and GIVES mechanical energy--you now have energy to move!

A fan USES electrical energy

and GIVES mechanical energy--the blades are now moving!

Can you identify the transformation?

You will need to be able totell what energy is USED and what energy it GIVES

What energy does it USE?

It uses ELECTRICAL energy, because you have to plug it in.

What energy does it GIVE?

It gives off microwaves which areRADIANT energy and THERMAL energy to heat the food.

It uses light waves from the sun,which is Radiant.

What energy does it USE?

What energy does it GIVE?

It gives off electricity which isELECTRICAL energy.

It uses CHEMICAL energy from the flame.

What energy does it USE?

What energy does it GIVE?

It gives off THERMAL (heat) andRADIANT (light)

It uses ELECTRICAL energybecause it gets plugged in.

What energy does it USE?

What energy does it GIVE?

It gives THERMAL energybecause it heats the bread.

It uses CHEMICAL and THERMALenergy from burning gasoline.

What energy does it USE?

What energy does it GIVE?

It gives MECHANICAL and KINETICenergy because the parts move to makethe car drive around.

It uses POTENTIAL energyfrom being up high before a fall.

What energy does it USE?

What energy does it GIVE?

It gives KINETIC energybecause it moves fast downhill.

It uses POTENTIAL and NUCLEARenergy from the atoms that will be split.

What energy does an atomic bomb USE?

What energy does anatomic bomb GIVE?

It gives RADIANT energy as radiation, and THERMAL energy as heat.