Name%(First%AND%Last):___________________________________%%%%%%Period:_________________%
Energy'Transformations%
%
0 Energy%can%change%from%one%type%to%another.%This%is%called%an%energy'
conversion'or%energy'transformation%
a. The%Law$of$Conservation$of$Energy%states%that%energy%can%change%form,%but%
it%cannot%be%created%or%destroyed.%Therefore,%the%total%amount%of%energy%
stays%the%same.%
b. In%energy'transformations,%some%energy%is%always%lost%to%the%
environment%as%thermal$energy.%
%
Examples'of'energy'transformations'and'their'uses:%
%
%%%
0 A%television%changes%electrical%energy%into%sound%and%light%energy.%During%
these%transformations,%it%also%loses%energy%as%heat.%
%
%
%
%
0 A%toaster%changes%electrical%energy%into%thermal%energy%and%light.%
%
%
%
0 A%car%changes%chemical%energy%from%fuel%into%thermal%energy%and%mechanical%
energy.%
0 A%car%battery%changes%chemical%energy%into%electrical%energy%and%thermal%
energy,%that%electrical%energy%is%then%changed%into%light%energy,%sound%energy,%
and%thermal%energy.%
%
