Hi--I am Art Krakowsky I am an Electronics Engineer I volunteer at Jackson Ave School Grades 4 and 5 The students call me Doctor K.

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Presentation transcript:

Hi--I am Art Krakowsky I am an Electronics Engineer I volunteer at Jackson Ave School Grades 4 and 5 The students call me Doctor K

TWO kinds of electric energy Static Electricity Current Electricity

A few thousand volts

Van de Graaff Born 1901 Invented static electricity generator in 1929 This is the generator we will use today

Here is a bigger Van de Graaff generator

An even bigger one!

A giant Van de Graaff generator

The biggest--25 Million Volts Oak Ridge National Lab in Tennessee

Electrons jump onto the belt at the bottom Electrons jump off the belt at the top

One of the properties of matter Where the electrons go when two things are rubbed together

Static Electricity

Everyone stays seated and pretty quiet so the volunteer can hear Volunteer keeps hand still and on the globe

Why does your hair do this??

Because all the - charges (electrons) repel

triboelectric series + Rabbit's Fur Glass Human Hair Nylon Wool Cat's Fur Silk Aluminum Paper Cotton Polystyrene Polyethylene Rubber balloon Hard rubber Polyester Polyurethane Polyethylene Polypropylene Vinyl Teflon Saran Wrap PVC