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SELMAN, CHAPTER 3

Physical Concepts of Energy

VOCABDEFINITION
INERTIA the tendency of a resting body to remain at rest
FORCE push or pull on an object
WORK whenever a force is acts upon a body, work is done
ENERGY may be defined as the ability to do work
KINETIC ENERGY the energy of a moving body
POTENTIAL ENERGY stored energy, energy at rest
LAW of CONSERVATION of ENERGY changes forms, and cannot be created nor destroyed
EINSTEIN'S THEORY of RELATIVITY energy = mass x speed of light in air or vacuum squared (E = mc*)
ELECTRIC MOTOR converts electrical energy to mechanical energy
BATTERY converts chemical energy to electrical energy
STEAM ENGINE converts heats energy to mechanical energy
GASOLINE ENGINE converts chemical to mechanical energy
Created by: ladyhope819