Hi i am art krakowsky
Download
1 / 17

Hi--I am Art Krakowsky - PowerPoint PPT Presentation


  • 77 Views
  • Uploaded on

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

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Hi--I am Art Krakowsky' - betty_james


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Hi i am art krakowsky
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
TWO kinds of electric energy

Static Electricity

Current Electricity



Van de graaff
Van de Graaff

Born 1901

Invented static electricity generator in 1929

This is the generator we will use today

About

100,000 or 150,000 volts


Here is a bigger van de graaff generator
Here is a biggerVan de Graaff generator


An even bigger one
An even bigger one!


A giant van de graaff generator
A giant Van de Graaff generator


The biggest 25 million volts oak ridge national lab in tennessee
The biggest--25 Million VoltsOak Ridge National Lab in Tennessee


So, how does our

Van de Graff Generator

work?


Electrons jump off the belt at the top

Electrons jump onto the belt at the bottom


One of the properties of matter

Where the electrons go when two things are rubbed together


Static Electricity

Demonstrations



Rules

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
Why does your hair do this??


Because all the charges electrons repel
Becauseall 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


ad