1. Goal 2 - Conductors and Insulators

2. What is resistance?
Measure of how difficult it is for electricity (electrons) to flow

3. 4 factors that determine resistance
The material you use
The length the electricity has to flow
The diameter of the wire
The temperature of the material

4. Reducing the resistance does what to the current?
Increases the current
Reduce the resistance, increases the current.
Reduce the resistance making it easier for the electricity to flow..

5. Path of least resistance
Electricity will ALWAYS take the easiest possible path.
You must be careful because through your body may be the path of least resistance.

6. Electric current flow through everything?
NO WAY!!!!

7. What are conductors? Materials that transfer electrons easily
Allows electrons to flow easily

8. Electrons in conductors
Electrons are loosely bound to their atoms.
Electrons move freely throughout the material
When electrons can move easily, they can flow, allowing electric current

9. Examples of conductors
Spoon
Wire
Metal
Copper
Aluminum
Gold

10. How does electricity get to a lamp so fast?
Electrons are already there, they just needed a push.
When the switch is flipped electrons start flowing

11. What are insulators?
Material which electrons cannot flow easily

12. Electrons in an insulator
Electrons are bound tightly to their atoms
Electrons do not move easily

13. Why the rubber coating?
Rubber acts as an insulator stopping the flow of electrons to your hand