Showing posts with label static electricity. Show all posts
Showing posts with label static electricity. Show all posts

Monday, September 27, 2010

Creating Static

To begin our unit of study on electricity, we first began with a study of static electricity.  We've all experienced static electricity - begin shocked when we get off the slide or bounce too long on a trampoline.  But none of us really knew why we got shocked.  We spent some time experimenting with balloons, and we eventually learned about negative and positive charges.  We learned that if an object has a build-up of negative charges, those negative charges want to "jump" to an object with a positive charge.  This discharge of negative charges is what produces that shock we all know.  Using static electricity, students were able to make salt and paper jump from the table - as well as make their hair stand up on end.  Unfortunately, static electricity had very little effect on my hair.  Hmmmmm.....