Day 98: E_thermPosted: March 12, 2014
Students have a hard time believing that the temperature of materials increase when other forms of energy are transferred to thermal energy through friction or collisions. I wanted to show them that the temp does actually increase, so 5-6 years agoI started using a hammer to hit silly putty embedded with a temperature probe. After missing too many times I started dropping a shot put instead, then switched to a bowling ball (more awesome), and this year due to an interaction with Gary (IIFC) I switched from using Silly Putty (which essentially explodes and gets everywhere) to using play doh, much cleaner. It’s pretty great, I usually see about a degree increase in the temp, certainly convincing enough that thermal energy has increased in the play doh.