![]() ![]() When it goes back up the next hill or loop, its height increases and it slows down-some of the kinetic energy is converted back to potential energy. When it goes over the top and starts going down the hill, its height rapidly decreases and its speed increases-the potential energy is converted to kinetic energy. That means it has a lot of potential energy but very little kinetic energy. When a roller coaster car reaches the top of its very first hill, it is very high off the ground but moving very slowly. Kinetic energy is the amount of energy an object has due to its mass and its speed. Gravitational * potential energy is the amount of energy an object has due to its mass and its height off the ground. Roller coasters are an excellent way to teach your students about conservation of energy. The transfer of energy can be tracked as energy flows through a designed or natural system. energy in fields, thermal energy, energy of motion). ![]() When the motion energy of an object changes, there is inevitably some other change in energy at the same time.Įnergy may take different forms (e.g. PS3.B: Conservation of Energy and Energy Transfer. ![]() ![]() Motion energy is properly called kinetic energy it is proportional to the mass of the moving object and grows with the square of its speed.Ī system of objects may also contain stored (potential) energy, depending on their relative positions. This lesson focuses on these aspects of NGSS Three Dimensional Learning: Science & Engineering PracticesĬonstructing Explanations and Designing Solutions.Īpply scientific ideas or principles to design, construct, and/or test a design of an object, tool, process, or system.Ĭonstruct an explanation that includes qualitative or quantitative relationships between variables that predict(s) and/or describe(s) phenomena. This lesson helps students prepare for these Next Generation Science Standards Performance Expectations:ĭevelop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.Ĭonstruct, use, and present arguments to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.
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