Sunday, November 07, 2004

Electricity Lesson 8

ELECTRICITY LESSON 8 – Insulators and Conductors
Lesson: 8.
Take up Hwk: pg. 65 course pack
Hand back Quiz
C.P. pg. 62, 63
Text pg. 280-281

Homework: Electricity package cross word and handout

Board Note:

A neutrally charged insulator and its response to a charged object being brought near it. In an insulator (such as plastic, rubber, glass, etc) the electrons are not free to move around the entire object. They are generally restricted to moving only around the atom they are attached to. They can move from one side of the atom to the other but are unable to leave the atom. As a result, we say that charges stay where you put them on an insulator.

In a neutrally charged conductor (usually metal) many of the electrons are free to to move around within the conductor. Conductors are often referred to as having a "sea of electrons" since the movement of the electrons looks like a flowing sea.

Draw a diagram to illustrate these concepts!


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