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Forms of Energy All forms of energy fall under two categories: 1. ________________ ________________ - Stored energy and the energy of position (gravitational). 2. ________________ ________________ - The energy of motion – waves, eletrons, atoms, molecules, substances, anything moving! Examples of Potential Energy (stored energy and energy of position): A. ________________ ______________ is the energy stored in the bonds of atoms and molecules. Biomass, petroleum, natural gas, propane, coal, and food are examples of chemical energy. B. _______________ ________________ is the energy stored in the nucleus of an atom – the energy that holds the nucleus together. The energy in the nucleus of a uranium atom is an example of nuclear energy. C. ___________ ___________________ _____________ is energy stored in objects by the application of force. Compressed springs and stretched rubber bands are examples of stored mechanical energy. D. ___________________________ ___________ is the energy of place or position. Water in a reservoir behind a hydropower dam is an example. A roller coaster sitting at the top of a hill has a lot of gravitational potential energy. Examples of Kinetic Energy (energy of motion): A. ______________ _______________is the electromagnetic energy that travels in transverse waves. Solar energy is an example of this. B. ______________ ______________ or heat is the internal energy in substances – the vibration or movement of atoms and molecules in substances. Geothermal energy is an example of this. C. ______________ is the movement of a substance from one place to another. Wind and hydropower are examples of motion energy. D. _______________ is the movement of energy through substances in longitudinal waves. E. ____________________ _____________________ is the movement of electrons. Lightning and electricity are examples of electrical energy. REVIEW All forms of energy fall under two categories: 1. Potential energy is _________ energy, or energy of _________________. 2.Kinetic energy is the energy of ____________ and involves the motion of waves, electrons, atoms, molecules, substances, or anything moving. Chemical energy, Nuclear energy, Stored mechanical energy, and Gravitational energy are all forms of ___________________ energy. Radiant energy, Thermal energy, Motion, Sound, and Electrical Energy are all forms of _____________________ energy. A roller coaster car is sitting still at the top of a big hill. It has ____________ energy. It starts moving down the hill, going faster and faster. Now it has _________________ energy. Figure it out! Kinetic energy is equal to ½ the mass times the velocity squared. If a bowling ball and a baseball are traveling at the same velocity, which has the greater kinetic energy? Why? Two books of equal mass are sitting on a bookshelf. Which has greater potential energy, the book on the top shelf or the book on the second shelf down? Why?