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# Chapter 6 AP Physics

### Chapter 6 Vocab

TermDefinition
Joule (J) The SI Unit of work and energy; it is a derived unit
Kinetic Energy The energy that an object possesses because of its motion.
Potential Energy Energy resulting from the position or state of an object.
Power Power is the time-rate of doing work.
Conservation of Energy In any transfer of energy among objects in a close system, the total energy of the system remains constant. The change in energy of a system is equal to the sum of the change in its kinetic energy, the change in its potential energy, and the change in its
Elastic Potential Energy When work is done on a spring by compressing or stretching it, potential energy is stored in the spring.
Energy The capacity of a system to do work.
Gravitational Potential Energy When work is done on an object by moving it against an Gravitational Field, the objects acquires gravitational potential energy.
Internal Energy The total energy of a system or object, including its potential energy and its kinetic energy.
Mechanical Energy A form of energy resulting from physical changes that encompasses both kinetic and potential energy.
Spring An elastic body, such as a coil of metal, that recovers its shape after being compressed, bent, or stretched.
Spring Constant The constant of proportionality in the equation for the force required to stretch or compress a spring :Fs=Kx
Total Mechanical Energy The sum of the kinetic and potential energies in a mechanical system.
Work Work is done on an object when a force displaces the object.
Spring Potential Energy The potential energy held in an elongated spring.
Created by: Mdkeller