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Kinetic and Potential Energy I can identify types of energy, including potential and kinetic. Definition of Energy… The ability to do work or cause change. Energy is classified as either potential energy or kinetic energy. Potential Energy • Potential energy – Stored up energy or energy at rest. KINETIC ENERGY: Energy in motion Potential energy is stored energy or energy at rest. It is the highest point, so it will fall the furthest, so it has more potential energy. What point would have the greatest amount of potential energy? Potential energy is stored energy or energy at rest. The lowest point would have the least amount of stored energy or potential energy. What point would have the least amount of potential energy? Kinetic energy is ….. energy in motion. As potential energy decreases, kinetic energy increases. So, the greatest amount of kinetic energy would be…. just before the ball hits the ground. potential ____________ energy? kinetic energy? ________ When the bow string is pulled back all the way, the type of energy demonstrated would be potential _______________ energy. Once the string is let go the arrow will fly toward the bulls eye. The arrow moving demonstrates ___________ energy. kinetic We can now look at other forms of energy and classify them as either potential energy or kinetic energy Types of Energy Types of Energy Mechanical - Mechanical energy: moving energy Kinetic Energy! Types of Energy Mechanical - Electromagnetic - Electromagnetic Energy? o Light energy o Includes energy from gamma rays, xrays, ultraviolet rays, visible light, infrared rays, microwave and radio bands Types of Energy Mechanical Electric - Electromagnetic - Electric Energy energy that comes through electrical lines or lightning. Types of Energy Mechanical Electric - Electromagnetic - Thermal - Thermal energy is heat energy. Types of Energy Nuclear - Mechanical Electric - Electromagnetic - Thermal - Nuclear energy – Nuclear power plants, atomic bomb, stars (sun- solar energy) Types of Energy Mechanical - Nuclear - Chemical Electric - Electromagnetic - Thermal - Chemical Energy o Energy released from chemical reactions. Chemical energy is stored on the end of a match. Examples of Chemical Energy Fossil fuels battery food Where do we get our energy from? Where do we get our energy? When we eat food, what type of reaction occurs to give us the energy? CHEMICAL Plants take in the energy from the sun. They use this energy in a CHEMICAL process of photosynthesis to make food for the plant to grow. Potential energy is stored energy or energy at rest. It is the highest point, so it will fall the furthest, so it has more potential energy. What point would have the greatest amount of potential energy? Potential energy is stored energy or energy at rest. The lowest point would have the least amount of stored energy or potential energy. What point would have the least amount of potential energy? Kinetic energy is ….. energy in motion. As potential energy decreases, kinetic energy increases. So, the greatest amount of kinetic energy would be…. just before the ball hits the ground. potential ____________ energy? kinetic energy? ________ When the bow string is pulled back all the way, the type of energy demonstrated would be potential _______________ energy. Once the string is let go the arrow will fly toward the bulls eye. The arrow moving demonstrates ___________ energy. kinetic Potential Energy Kinetic Energy NOTES Types of Energy Mechanical Moving energy Nuclear Nuclear plants bombs, stars Chemical Fossil fuels, food, Electric Energy carried in electrical lines or lightning Electromagnetic Thermal Light, x-ray, Heat energy gamma energy Potential Energy • Potential energy – Stored up energy or energy at rest. KINETIC ENERGY: Energy in motion Potential energy is stored energy or energy at rest. It is the highest point, so it will fall the furthest, so it has more potential energy. What point would have the greatest amount of potential energy? Potential energy is stored energy or energy at rest. The lowest point would have the least amount of stored energy or potential energy. What point would have the least amount of potential energy? Kinetic energy is ….. energy in motion. As potential energy decreases, kinetic energy increases. So, the greatest about of kinetic energy would be…. just before the ball hits the ground. When the bow string is pulled back all the way, the type of energy demonstrated would be potential _______________ energy. Once the string is let go the arrow will fly toward the bulls eye. The arrow moving demonstrates ___________ energy. kinetic