Forms of energy and transformations
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This document discusses different forms of energy including mechanical energy, chemical energy, electrical energy, nuclear energy, and thermal energy. It explains that energy can be transformed from one form to another but is never created or destroyed according to the law of conservation of energy. Some energy is always lost as heat during transformations.
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Forms of energy and transformations
- 1. What is this? What is it for? How does it work? What is happening in the second picture? What causes the arrow to fly through the air to the target?
- 3. Energy is the ability to do work. Work occurs when a force causes something to move.
- 4. The energy of motion… depends on mass and speed. The stored energy of position or shape.
- 5. The energy of motion… depends on mass and speed.
- 6. Mechanical = potential energy + kinetic energy. It is the total energy of motion and position of an object. The total energy of the motion of the particles in a substance. The energy stored in the bonds between atoms. Released as atoms are rearranged to form new substances. C6H12O6 + 6O2 ----> 6H2O + 6CO2 + energy
- 7. The energy of moving electrons. Caused by an object’s vibrations. Energy that can travel through space. Includes microwaves, radio waves, visible light, and X-rays
- 8. Energy associated with changes in the nucleus of an atom. See pgs. 291, 295
- 9. Any form of energy can be changed into any other form of energy. This is called an energy conversion or transformation.
- 10. In every transformation, some energy is ALWAYS converted to thermal energy. Law of Conservation of Energy: Energy cannot be ________ or ________, but it can be ________.
- 11. Choose 2 of the devices pictured below and illustrate and describe the energy transformations they perform.