THE ABILITY TO DO WORK OR TO CHANGE MATTER

MOVEMENT SOUND HEAT LIGHT

IS MOTION ENERGY

A MOVING CAR, A BULLET, A RIVER FLOWING

IS ENERGY STORED IN MATTER

GRAVITATIONAL POTENTIAL ENERGY

ELASTIC POTENTIAL ENERGY CHEMICAL POTENTIAL ENERGY ELECTRICAL POTENTIAL ENERGY

AN APPLE AS IT FALLS OFF OF A TREE.

A STRETCHED RUBBER BAND A BOW

A BATTERY

THE MOVEMENT OF THE MOLECULES THAT MAKE UP AN OBJECT.

BY DOING WORKOR

HEAT TRANSFER

WORK = FORCE X DISTANCE

CONDUCTION CONVECTION

RADIATION

THE TRANSFER OF ENERGY FROM ONE MOLECULE TO ANOTHER.

THE TRANSFER HAPPENS WHEN THE MOLECULES HIT AGAINST EACH OTHER.

TAKES PLACE IN SOLID, LIQUIDS, AND GASES BUT WORKS BEST IN MATERIALS WITH SIMPLE MOLECULES LIKE METAL.

THE MOVEMENT OF HEAT BY A LIQUID OR A GAS.

THE LIQUID OR GAS CARRY THE HEAT WITH IT AS IT MOVES.

THE MOVEMENT OF A MASS OF HEATED WATER OR AIR IS CALLED A CURRENT.

THE TRANSFER OF HEAT BY ELECTROMAGNETIC WAVES.

WHEN WE FEEL THE HEAT FROM THE SUN OR AROUND LIGHT BULBS, IRONS, OR THE OVEN.

HAS FANS WHICH CAN BE TURNED BY WATER, STEAM, OR WIND.

IT TURNS A SHAFT ON A GENERATOR.

TRANSFORMS KINETIC ENERGY INTO ELECTRICAL ENERGY.

WHEN THE SHAFT OF THE GENERATOR TURNS ELECTRICITY IS CREATED.

ENERGY IS NEVER CREATED OR DESTROYED.

ENERGY CHANGES FORM.

COAL, OIL, AND NATURAL GAS

FORMED MILLION OF YEARS AGO BY HEAT AND PRESSURE.

NONRENEWABLE RESOURCE – IT IS USED FASTER THAN CAN BE REPLACED.

BURNING FOSSIL FUELS PRODUCES POLLUTION.

URANIUM ATOMS BREAK APART AND RELEASE GREAT AMOUNTS OF ENERGY.

ALMOST NO AIR POLLUTION IS CREATED.

URANIUM IS NONRENEWABLE.

THE WASTE PRODUCTS ARE RADIOACTIVE AND VERY DANGEROUS TO LIVING THINGS.

WATER WHICH IS TRAPPED BEHIND DAMS IS USED.

SUPPLIES 20% OF THE WORLDS ELECTRICAL ENERGY.

IT CREATES ALMOST NO POLLUTION.

IT DISRUPTS THE LIFE CYCLE OF AQUATIC ANIMALS.

SOLAR ENERGY

WIND ENERGY

ENERGY FROM THE OCEANS

GEOTHERMAL

INEXHAUSTABLE RESOURCE – CANNOT BE USED UP.

LESS THAN .1 % OF THE ENERGY IN THE U.S. COMES FROM SOLAR ENERGY.

SOLAR COLLECTOR – HEATS WATER WHICH RUNS THROUGH THE HOUSE TO HEAT HOUSE AND WATER.

PHOTOVOLTAIC – TRANSFORMS SUNLIGHT INTO ELECTRICAL ENERGY.

WELLS ARE DRILLED TO REACH HOT WATER AND STEAM.

HEAT PUMP IS USED TO COOL AND HEAT HOUSES BY DRILLING SEVERAL METERS UNDER BUILDINGS.

A PLANT CAN ONLY BE PLACED WHERE THE HOT WATER IS CLOSE TO THE SURFACE.

THE TIDE CHANGE IS USED TO TURN TURBINES WHICH THEN TURN A GENERATOR IN A POWERPLANT.

THERE MUST BE A GREAT CHANGE IN TIDE LEVELS FOR THIS TO WORK.

WINDMILLS CONVERT THE WIND TO ELECTRICAL ENERGY.

THE PROPELLER TURNS A GENERATOR.

CREATE ALMOST NO POLLUTION.

A LARGE AREA IS NEEDED.

THEY CREATE NOISE AND CAN KILL BIRDS.

QUESTIONS?