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Name: ____________________________________ Date: _______________ Period: _______ Skill of the week- Energy Transformations MONDAY Read and answer the following questions. Energy can change forms. An energy transformation is a change from one form of energy to another form of energy. Energy transformations happen all around you. A toaster changes electrical to thermal energy to toast bread. Your body changes the chemical energy in food to mechanical energy as you move. A energy transformation is written as first energy new energy ( means turns into) 1. Define an energy transformation: _______________________________________________ _____________________________________________________________________________ 2. Write an energy transformation for a toaster. _________________________________ _______________________________ 3. Write an energy transformation for food in a human’s body. _________________________________ _______________________________ TUESDAY Read and answer the following questions. One of the most common energy transformations is the transformation between potential and kinetic energy. (Kinetic energy is the energy of motion. Potential energy is stored energy.) Energy changes form when an object moves up or down. The object has the most potential energy at its highest point and its lowest potential energy at its lowest point. The object has the most kinetic energy at its lowest point because it is moving the fastest. 4. A kid takes off on a swing. Label the greatest potential energy ( PE), and greatest kinetic energy ( KE), A C . B 5. Write the energy transformation from point A to point B. _________________________________ _______________________________ 6. Write the energy transformation from point C to point B to point A. _________________________ ________________________ ________________________ WEDNESDAY Read and answer the following questions. Energy transformations can also be created for the 6 forms of energy; chemical, electrical, electromagnetic, nuclear, thermal and mechanical. Remember Mechanical energy is position and motion. Thermal energy is heat. Electrical energy is created by the flow of electrons from atoms. Chemical energy is stored energy in chemical bonds of atoms. Nuclear energy is stored in the nucleus of atoms. Electromagnetic energy is light. Write an energy transformation for the following scenarios. 7. The sun has nuclear energy which forms new atoms by fusing the nuclei of atoms. This energy releases light and heat. ________________________ _________________________ ________________________ 8. A student is turns on the stove to make a pizza. What is the energy transformation with the stove baking a pizza? ________________________ _________________________ THURSDAY Read and answer the following questions. 9. A dam uses moving water to move panels under the dam. That moving energy then creates electrons from atoms and creates heat. ________________________ _________________________ ________________________ 10. A windmill uses wind to move the panels on the windmill. That energy then stores electrons from atoms and creates heat. ________________________ _________________________ ________________________ 11. What type of energy is in EVERY energy transformation due to friction (rubbing of particles)? ____________________________________