Mechanical energy store and transfer .pptx

AnnaKuznetsova54 10 views 23 slides May 19, 2024
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About This Presentation

energy store and transfer


Slide Content

Types of Energy

Energy Energy is the capacity of a physical system to do work  

Types of Energy

Kinetic Energy     – mass     – velocity   Kinetic energy E k is energy associated with the state of motion of an object

Potential energy is stored energy in the system in some fashion. Once the potential energy is released, it can do work.

    Zero level – mass     – gravity acceleration   – height   Gravitational Potential energy

Elastic Potential energy – spring constant     – displacement  

Potential energy

  The mechanical energy E mec of a system is the sum of its potential energy E p and the kinetic energy E k of the objects within it:

Energy transformation

    1 Energy transformation

        1 2 Energy transformation

            1 2 3 Energy transformation

            1 2 3 4     Energy transformation

            1 2 3 4       Energy transformation

  Conservation of Mechanical Energy Energy is never created or destroyed; it only changes form .

Conservation of Energy

Energy transformation

Conservation of Mechanical Energy
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