 THE ABILITY TO DO WORK OR TO CHANGE MATTER  MOVEMENT  SOUND  HEAT  LIGHT.

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Presentation transcript:

 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 WORK OR 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.