Energy Notes Student Name ___________________ Ms. Brantley Per _____ ENERGY is ………. the ability to do_______________________ the ability to make things __________________ NOTHING happens without ENERGY! You can’t see or touch energy. It DOES NOT take up space or have mass. Energy is NOT_______________! THE ENERGY SONG Melody is from "That's the Way I Like it" by K.C and the Sunshine Band, by H.W. Casey and R. Finch. Lyrics by Doug Edmonds. Doo doo doo doo doo doo doo Doo doo doo doo doo doo doo Refrain: Energy, uh-huh, uh-huh, it can't be cre-a-ted! Energy, uh-huh, uh-huh, it can't be, can't be destroyed! Energy, uh-huh, uh-huh, it can't be cre-a-ted! Energy, uh-huh, uh-huh, it can't be, can't be destroyed! The Law of Conserva-tion of energy Energy can only be transformed! Energy exists in many forms But never created or destroyed. (Refrain) Two main types -- of energy Potential and kinetic energy. Potential - is energy that's stored Kinetic is motion energy! (Refrain) Here're some forms -- of potential energy Gravitational, chemical, nuclear, and elas-tic. And some forms -- of kinetic energy Electrical, mechanical, heat and light! (Refrain) and then doo, doo, doo ... followed by Refrain. ___________________ ___________________ Energy that is stored; the energy of position (gravitational) Energy of motion; motion of waves, electrons, atoms, molecules, and substances Forms ____________________ ____________________ ____________________ ____________________ Forms ____________________ ____________________ ____________________ ____________________ 1 Potential – stored energy Kinetic – energy of motion energy of an object’s position Gravitational Energy energy stored because of an object’s position Anything ABOVE the ground water behind a dam snow on a mountain skydiver Radiant (light) Energy travels in waves, most are not visible Sun (solar) x-rays, UV radio waves, microwaves --------------------------------------------------------------- Sound Energy movement of energy through substances (vibrations) ------------------------------------------------------------------ Chemical Energy stored in chemical bonds Fossil Fuels – oil, natural gas, coal Biomass – food, wood, plants, garbage Living things Batteries music, an explosion, sonic boom --------------------------------------------------------------- Electrical Energy movement of electrons (parts of atoms) electricity lightning ------------------------------------------------------------------------------------------------------------------------------- Elastic Energy (Stored Mechanical) stored when an object is compressed or stretched Mechanical (motion) Energy movement of objects or substances wind water (hydropower) machinery Compressed springs & elastic bands --------------------------------------------------------------- Thermal (heat) Energy energy of moving atoms; internal energy in substances ----------------------------------------------------------------- Nuclear Energy stored in the center of an atom (nucleus) Uranium – U atoms are split in a nuclear power plant to release energy geothermal – heat within the earth Heat moves from warmer to cooler substances by one of these methods: Conduction Convection Radiation 2 Law of Conservation of Energy states that…… Energy CANNOT be _______________ or ___________________, It is transformed (or _____________________) into other forms of Energy!!!! Complete the energy transformations in the chart below. Event Original form of energy is ….. It is transformed into…. Resulting form(s) of energy Example: Lighting fireworks Chemical Radiant Turning on a lamp Coal used to make electricity You eat an apple, then ride a bike A car is turned on Releasing a rock in a sling shot Wood burning A battery-powered robot starts moving Sun shines on a solar panel and the school zone lights flash (your turn to try) 3 Thermal (Heat) Energy Transfer Thermal energy is a form of KINETIC energy – it always moves from _______________ to _____________. It can move in the 3 ways listed below. Below each one, you should list some examples and draw a picture to help you remember each of them. Conduction: transfer of heat through a material by ____________________ ________________. Convection: transfer of heat in a _____________________ or a __________________ as a result of the movement of the liquid or gas. Radiation: transfer of heat via electromagnetic (______________) waves through space. How are all three forms of heat transfer alike? _____________________________________ How are all 3 forms of heat transfer different? _____________________________________ 4 Renewable vs. Non-Renewable Sources of Energy Define: Renewable (R) - ___________________________________________ Non-Renewable (N)- ________________________________________ List advantages and disadvantages of the different sources of energy below. Type of Energy Fossil Fuels Nuclear R/N (renewable or non-renewable) Sources of that Energy Advantages Disadvantages Coal, oil, natural gas, gasoline, petroleum Uranium Hydropower Force of moving water Solar Sun Geothermal Internal heat of the earth Wind Force of moving air Biomass Wood, crops, living matter If our supply of fossil fuels is depleted, how might this impact you? ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ What can you do to personally conserve energy? ________________________________________________________________________________________ ________________________________________________________________________________________ ________________________________________________________________________________________ 5