relative positions of charged particles, compression of a spring) and how kinetic energy depends on mass and speed, allow the concept of conservation of energy to be used to predict and describe system behavior.Īlignment agreement: Thanks for your feedback! The availability of energy limits what can occur in any system. That there is a single quantity called energy is due to the fact that a system's total energy is conserved, even as, within the system, energy is continually transferred from one object to another and between its various possible forms.Īlignment agreement: Thanks for your feedback! Conservation of energy means that the total change of energy in any system is always equal to the total energy transferred into or out of the system.Īlignment agreement: Thanks for your feedback! Energy cannot be created or destroyed, but it can be transported from one place to another and transferred between systems.Īlignment agreement: Thanks for your feedback! Mathematical expressions, which quantify how the stored energy in a system depends on its configuration (e.g. This activity focuses on the following Three Dimensional Learning aspects of NGSS:Ĭreate a computational model or simulation of a phenomenon, designed device, process, or system.Īlignment agreement: Thanks for your feedback!Įnergy is a quantitative property of a system that depends on the motion and interactions of matter and radiation within that system. Calculate how much energy is stored in a capacitor and how much is converted by the piezo element.Ĭreate a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.Ĭlick to view other curriculum aligned to this Performance Expectation.List multiple energy-harvesting applications for piezoelectric materials.Explain how the piezoelectric generator works and from where it gets its energy.However, the technology of currently available piezoelectric materials and methods is unable to produce a sufficient amount of energy, so engineers are researching how to improve piezoelectric energy harvesting devices.Īfter this activity, students should be able to: One of the most interesting applications is in the field of energy harvesting, where piezoelectric materials are used to convert mechanical energy that is typically wasted into a source of electrical energy. This gives piezoelectric materials a wide range of potential applications from sensors and actuators to artificial muscles. ![]() ![]() Piezoelectric materials have the unique and useful property of being able to transform mechanical energy into electrical energy, and vice versa. ![]() Copyright © 2014 Matthew Zelisko, GK-12 Program, University of Houston.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |