Energy is the ability to do work or cause change. It can change the temperature, shape, speed, or direction of an object Potential energy is stored energy. Kinetic energy is energy in motion. Why is the bowling ball able to do work? How should you throw the ball to do the maximum work on the pins? Chemical The energy in chemical bonds that hold atoms together. When chemical bonds are broken, chemical energy is released. All matter has chemical energy. When you digest the pizza you eat, the pizza gives your body energy. Elastic Energy that can be compressed or stretched. Electromagnetic energy of light and other forms of radiation (radio, UV, X-ray); it travels in waves. Thermal Heat energy. The hotter the object, the faster its molecules are moving. Electrical- The energy of electric charges. Sound- energy that causes air molecules to vibrate in waves. Energy Transformation occurs when one form of energy is changed into another. Kinetic Energy (Turbines are spinning!) Electrical Energy Electromagnetic (Light and UV) Energy An energy transfer happens when the same form of energy is passed from one object to another. Kinetic Energy Have you ever burned your mouth on sip of hot cocoa or tea? The thermal energy was transferred from the drink (hot) to your mouth (cold) by conduction. Ouch!