Electricity+and+Thermal+Physics

**__[[image:Galileo_Thermometer.jpg width="288" height="345" align="right"]]Thermal Physics__**
Some useful documents and //**past papers**// are here
 * New Stuff** (please read)

Contents Page (//student pages//)
//Puzzles://

__Thunder and lightning__ Why does a flash of lightning take only an instant, while the corresponding thunder can last for a few seconds? You might have expected that that the sound is caused by the flash, and that the thunder should therefore be audible also for an instant.



Which freezes faster, hot or cold water?

Can you explain why?