1. Insulators and Conductors
Electric Circuit
Current provided by battery flows through wire, into the light bulb, through another wire, and back to the battery.
Current: flow of electrons
Electric lamp (glowing)
Electric lamp (not glowing)
Conductor
lets electrons flow
Insulator
doesn’t let electrons flow

3. Insulators and Conductors
Atom
Insulators hold electrons close like a dog on a leash
Insulators let electrons flow like dogs running free
Conductors let electrons flow like dogs running free

4. R - Resistance  - Density L - Length A - Area
Higher Resistance
Resistance: is like resistance to water flow in a hose. Larger diameter hose -less resistance, longer hose –more resistance
Voltage like pressure, current like flow
Resistance: How much the material resists the flow of electrons
R = V / I
The higher the resistance, the slower the flow of electrons, the smaller the power output
R = ( x L) / A
R - Resistance  - Density L - Length A - Area
Lower Resistance