7.1 – Static Charge. OVERVIEW. Ancient Greece: when certain objects were rubbed (ex. amber) with wool or fur, they would attract lint and dust “STATIC” : stationary or not moving Static Charge (or static electricity): electric charges that can be collected and held in 1 place.
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Static Charge(or static electricity): electric charges that can be collected and held in 1 place
Performed experiments that caused a build-up of this electrical fluid
but the meaning is
NOT the same as
If the # of protons and electrons is equal, the atom is uncharged or neutral!
Result: ALL solid materials are charged by the transfer of electrons!
See Figure 7.3 in Textbook!
Think about this!
When you rub one end of a neutral plastic rob with a paper towel, the end you rub would become charged. The other end would remain neutral!
The electrons you
added to the neutral
plastic by friction will
stay in one place
Metals are good conductors because their atoms possess at least one easily transferable electron
# of electrons = # of protons