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Transcript
Do Now Record HW. Update your table of contents. Page # Title Energy and Work Date 04/23 Please take the notes from the cart, fold it as a booklet, and place it on pg of your ISN. What is energy? Work is done when a force moves an object a certain distance. Energy is the ability to do work/cause change. Types of Energy Kinetic Energy Kinetic energy is energy due to motion. Kinetic energy depends upon the speed and mass of the object. Potential Energy Potential energy is stored energy due to the interactions between objects or particles. The types of potential energy you are responsible for knowing: gravitational, elastic, and chemical. Kinetic Energy Kinetic Energy Potential Energy Gravitational potential energy depends upon the object’s weight and height. Potential Energy Elastic potential energy is stored in objects that are compressed or stretched. Potential Energy Chemical potential energy is energy stored in the chemical bonds between atoms. It is released when chemical reactions occur. For the curious 150 kJ (35kcal) You may recognize Calories (kcal). Once it was the metric unit for heat energy. Calories (with capital C) = kcal (1000 calories with a lower case c) It’s weird, I know. Now Joules (J) is the metric unit for energy (of all types). Potential Energy Forms of Energy Using pg 160-167 of the textbook, fill in your Describing Wheel with the different types of energy. Include the definitions of each type and at least one example for each. Mechanical Energy Gravitational Potential Energy Elastic Potential Energy Chemical Potential Energy Sound Energy Thermal Energy Electric Energy Radiant Energy Nuclear Energy When you are done, log on to a laptop and watch the Brainpop: Forms of Energy video.
