Read pp 36-80 in The Manga Guide to Electricity.
Static electricity is caused when the positive and negative charge attract each other. The amount of positive and negative charge that is created is equal and the shock is a result of the atom particles balancing themselves out. Static electricity can be caused by rubbing something like vinyl against hair. On a cold day if you rub your feet against the carpet and then touch a doorknob you may be shocked which is a result of the charge moving through your body to the doorknob. The polarity of the charges differs depending on the material that is used. The triboelectric series can be used to determine which two materials can cause the most static electricity.
1. Document yourself creating some static electricity and post to blog. Use the triboelectric series to decide which materials to use to generate static electricity.
I used vinyl and my hair because they are far apart on the triboelectric series
2. Contrast the speed of an electron with the speed of electrical motion in one sentence.
“The speed at which electrical motion is transmitted to neighboring electrons is the
same as the speed of light: 300.000 km per second; therefore, the current also flows at
300.000 km per second (the speed of tight)”
3. Briefly explain the relationship between resistance and energy. Use an example from your house.
The load is what converts electrical energy to light or heat energy. When the load hinders the flow of current it is called electric resistance. A light bulb has a resistance that converts electric energy to light energy.
4. What is the difference in AC and DC current? Give and example of each from your daily life. If you get shocked,
In DC the current flows in one direction and AC means the current can change direction. A battery is DC and an outlet is AC.
5. Determine the equivalent resistance of a 6.0 Ω and a 8.0 Ω resistor if …
- 14v= 6+8 … connected in series.
- 1/(⅙)+(⅛)= (6x8)/(6+8)=48/14 = 3.43… connected in parallel.