Electricity Learning

Van De Graff Expierience

When bubbles were blown at the Van De Graff you could also see webs, like if something was linking the bubbles once they were blown out. Also the bubbles would stick to you they would'nt pop. When we formed a human chain around the Van De Graff with the end of the chain people touching the Van De Graff. Outside people could shock the people inside the chain. It was intresting because I thought it was the other way around, were the people inside the chain would shock the people outside the chain. When there was one napkin on top if the Van De Graff the napkin flew off once the Van De Graff was on. It fisrt looked like it was trying to get blown off, but then it flew in a way because it quickly got taken off the Van De Graff. When on the contrary there was many, none of them really cam off. When there were paper strips taped on the Van De Graff, it was like hair were it would stick up. When the machine was energized and Paul placed the cheerios on the Van De Graff, the cheerios flew off in diffrent ways almost looking like a waterfall of cheerios. This happened because of electricity that was going on with all the materials there were, including the human chain.

Electricity Learning

During station one what you had to do was take a balloon that was already blown up and rub it against your hair. Then there were pieces of paper that you would but the balloon in after you had rubbed it against your hair. During station two you had to have two pieces of tape that had to be ten inches long. You had to stick tem to the table next to each other and then quickly take them of and hold them closely next to each other after they had been taken off the table. During this experiment we had one piece longer than the other but it still worked. All that happened was that the tape repelled against each other, as much as you tried to get them together it wouldn’t work. In station three you had two pieces of tape that had to be ten inches long as well but you had to tape them to the table on top of each other. Once you took them apart they would attract to each other. When you tried to take them apart they would still be attracted to each other. My hypothesis is that there was some sort of electricity concept that was going on with each experiment.