2. What is ENERGY? Energy is the ability to do _______ Work
3. Work occurs when a _____ causes an object to _____ in the same direction as the force. move force
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5. All forms of energy can be classified as Kinetic or potential. The two basic states of energy. So, what’s the difference?
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9. 1) Potential energy is stored energy due to and object’s _____________ Position POTENTIAL ENERGY
10. 2) An object that is lifted from its position on Earth has __________ potential Energy which depends on ______ and mass gravitational POTENTIAL ENERGY height
11. 3) Massive objects have _____ potential energy than less massive objects more POTENTIAL ENERGY
12. 4) An object at a higher elevation will have _____ potential energy than an object at a lower elevation more POTENTIAL ENERGY
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14. 2) Kinetic depends on the _____ and the _______ of an object. MASS KINETIC ENERGY SPEED
15. 3) Faster objects have ____ kinetic energy than slower objects. More KINETIC ENERGY
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17. The total ________ energy of the particles in matter. (molecular motion) Kinetic THERMAL (HEAT)
18. Heat energy STORED within the _____. Ex: Volcanic eruptions, geysers Earth GEOTHERMAL (HEAT)
19. Energy STORED in chemical ____ that can be released. Ex: food, fossil fuels, battery acid bonds CHEMICAL
20. Energy STORED in the ________ (center) of an atom . Ex: nuclear bombs nucleus NUCLEAR
21. Energy with which ______ objects perform work. Ex: Wind, flowing water, using a hammer moving MECHANICAL
22. A type of mechanical energy. It is the energy produced when objects ________. Ex: tuning fork, bell vibrate SOUND
23. A form of _______ energy that moves in a ______. Ex: lamp, stars radiant LIGHT wave
24. A form of energy produced by the ________ of ________ movement ELECTRICITY electrons
25. All forms of energy that come from the ______. SUN SOLAR ENERGY
26. Stored energy due to a change in the shape of an object. Ex: _______________ A stretched rubber band STORED MECHANICAL ENERGY:
28. Do you remember the LAW OF CONSERVATION OF MASS AND ENERGY? ENERGY TRANSFORMATIONS
29. Law of Conservation of ENERGY: (same for mass) Mass/ NRG ____________ Mass/ NRG ______________ Mass/ Energy can only __________ Can’t be made Can’t be destroyed Change form!!!
30. Please read the paragraph… Energy is constantly changing form… ENERGY TRANSFORMATIONS
32. Very often during the energy transformation process, some ____ energy is produced due to friction. This is wasted energy and is lost to the environment. heat UNUSABLE ENERGY:
33. An energy resource that is _______________________________________ . Being used faster than Earth Produces it What is a NON-RENEWABLE RESOURCE?
35. To make our non-renewable resources last longer we can _____________________________________________ . Reduce Reuse Recycle What is a NON-RENEWABLE RESOURCE?
36. An energy resource that is _______________________________________ . Earth supplies faster than we use it “unlimited” What is a RENEWABLE RESOURCE?