Electricity

25 points

1.    Compare and contrast static electricity with an electrical current.  Give an example of each.  (2 points)

2.    Compare and contrast an electrical insulator with an electrical conductor, and give an example of each.  (4 points)

3.    Compare and contrast a serial circuit with a parallel circuit.    (2 points)

4.    Draw a circuit diagram of a parallel circuit with a switch, two light bulbs, and a battery.  (3 points)

5.    Draw a circuit diagram of a serial circuit with 2 light bulbs, a switch and a battery.  (4 points)

6.    Compare and contrast AC current with DC current.  (2 points)

7.    Compare and contrast circuit breakers and fuses, and give your opinion on which is easier to use and why.  (2 points)

8.    Complete the following table, which shows various electrical devices in the home:  (4 points)

Volts X Amps = Watts    Watts / 1000 = Kilowatts    Kilowatts X Hours = Kilowatt hours

Appliance Volts Amps Watts Kilowatts Usage Time (hours) Kilowatt Hours
Hair Dryer 110 6     .25  
Stereo 110 1     1  
Color TV 110   200   2  
Microwave 110 14     .25  
Range 220 20     .50  
100 watt bulb 110   100   24  

Which item costs the most to use each day?  (1 point)

How many hair dryers can a 110 volt, 15 amp circuit handle before it overloads?  (1 point)