But, if you are serious about learning Italian - and even before you buy or subscribe to any expensive courses (except, obviously, GamesforLanguage.com's Italian Story, which is FREE!) - you may want to learn more about Benny's approach by clicking on his explanation of Why Italian is easy!.
Coefficient of thermal expansion. The coefficient of thermal expansion describes how the size of an object changes with a change in temperature. Specifically, it measures the fractional change in size per degree change in temperature at a constant pressure. Several types of coefficients have been developed: volumetric, area, and linear.
142 Chapter 7 Worksheet 7.3-1 Copyright Â© 2010 by Nelson Education Ltd. E XPANSION AND C ONTRACTION When most solids, liquids, and gases are heated, theirvolume increases. In other words, they expand, or getlarger. Thermal expansion is an increase in volumebecause of heating.Heating causes particles to speed up. This causes thekinetic energy to increase. Fast-moving particles bumpinto one another more than slow-moving particles.Thermal expansion does not change the mass of anobject.