CH 2 SEC 3ENERGY AND MATTER

ENERGY- IS THE ABILITY TO DO WORK OR CAUSE CHANGE.

KEY- EVERY CHEMICAL OR PHYSICAL CHANGE IN MATTER INCLUDES A CHANGE IN ENERGY.

KEY- LIKE MATTER ENERGY IS NEITHER CREATED OR DESTROYED IN CHEMICAL REACTIONS, BUT CAN CHANGE FROM ONE FORM TO ANOTHER!

ENERGY

EXAMPLE- WHEN CHARCOAL BURNS IT RELEASES ENERGY IN THE FORM OF HEAT AND LIGHT.

KEY- FORMS OF ENERGY RELATED TO CHANGES IN MATTER INCLUDE; THERMAL ENERGY, CHEMICAL ENERGY, ELECTROMAGNETIC ENERGY, AND ELECTRICAL ENERGY.

ENERGY AND MATTER

FORMS OF ENERGY

TEMPERATURE- IS A MEASURE OF THE AVERAGE ENERGY OF RANDOM MOTION OF PARTICLES OF MATTER

THERMAL ENERGY- IS THE TOTAL ENERGY OF ALL THE PARTICLES IN AN OBJECT. EX- HOT CUP OF COFFEE RELEASING T. E.

THERMAL ENERGY- ALWAYS FLOWS FROM WARMER MATTER TO COOLER MATTER

TEMP AND THERMAL ENERGY

EARTHS TEMPERATURE

COPY TO NOTES

ENDOTHERMIC CHANGE- IS CHANGE WHEN ENERGY IS TAKEN IN.

EX- ICE MELTING , THE ICE TAKES IN THE ENERGY FROM IT SURROUNDINGS

FORMS OF ENERGY

TIP OF THE ICEBERGENDOTHERMIC

EXOTHERMIC CHANGE- ENERGY IS GIVEN OFF.

EX-WHEN CHARCOAL BURNS IT RELEASES ENERGY IN THE FORM OF LIGHT AND HEAT

CHANGES IN ENERGY

EXOTHERMIC

KEY- DURING A CHEMICAL CHANGE, CHEMICAL ENERGY MAY BE CHANGED TO OTHER FORMS OF ENERGY.

EX- WHEN YOU PUSH A BIKE AND YOURSELF UP A HILL, CHEMICAL ENERGY FROM FOODS YOU ATE IS TRANSFORMED INTO ENERGY OF MOTION.

TRANSFORMING ENERGY

KEY- ONE OF THE MOST IMPORTANT ENERGY TRANSFORMATIONS ON EARTH THAT INVOLVES CHEMICAL ENERGY IS PHOTOSYNTHESIS.

KEY- DURING PHOTOSYNTHESIS, PLANTS TRANSFORM ELECTROMAGNETIC ENERGY FROM THE SUN INTO CHEMICAL ENERGY AS THEY MAKE MOLECULES OF SUGAR.

KEY- WHEN WE EAT PLANTS AND ANIMALS WE TRANSFORM THE ENERGY ONCE AGAIN TO ENABLES US TO LIVE.

PHOTOSYNTHESIS SKETCH

https://www.brainpop.com/science/energy/formsofenergy/

BRAINPOP

1-AB 2-ABC

Q &A P.77