Get one wire, one battery, and one bulb.<br />Using this equipment, try to make the bulb light.<br />Keep trying if you don’t get it right away. Think about different ways you can connect the battery, the bulb, and the wire.<br />As you try each different arrangement, draw it on the piece of paper. Draw arrangements both that lighted the bulb and that did not light the bulb.<br />Find out 4 different ways<br />Can you light the bulb? <br />
Battery<br />Device that converts chemical energy to electrical energy<br />A combination of two or more electrochemical cells <br /> ( negative electrode and positive electrode)<br />
Electricity: A variety of phenomena resulting from the presence and flow of eclectic charge<br />Circuit: pathway which allows electricity to flow<br /><ul><li>Closed circuit: pathway in which all components are connected to allow electricity to flow
Open circuit: pathway in which all components are not connected / does not allow electricity to flow
Short circuit: closed circuit where electricity travels along an unintended, alternative path </li></ul> => cause circuit damage, overheating, fire or explosion<br />Electric Circuit<br />
There are at least two independent paths for electric charges to follow, so each branch of the circuit can work by itself.
The bulbs in a parallel circuit do not have the same current.
What will happen to the other bulbs if one of the bulbs is removed from its bulb holder? </li></ul> => They are still working because charges still run through the other branches. <br />Electric Circuit (Cont.)<br />
Electricity does not come from the light switch on the wall; it comes from power generating plants. <br />More than half of the electricity that is used in the US is provided by burning coal. <br />One ton (2,000 pounds) of coal can produce 2,500 kilowatts (kwh) of electricity.<br />About 7,500 pounds of coal is mined every year for every person in the US, most to produce electricity. <br />Find your state’s source of electricity from the Energy Information Administration www.eia.doe.gov.<br />Electricity & Sources of it<br />
Container: A steel can housing the cell’s ingredients to form the cathode, a part of the electrochemical reaction.<br />Cathode: Manganese dioxide mixture and carbon. Cathodes are the electrodes reduced by the electrochemical reaction.<br />Separator: A non-woven, fibrous fabric which separates the electrodes.<br />Anode: Powdered zinc metal. Anodes are the electrodes that are oxidized. <br />Electrodes: Where the electrochemical reaction takes place.<br />Electrolyte: A potassium hydroxide solution in water. The electrolyte is the medium for the movement of ions within the cell and carries the ionic current inside the battery. <br />Collector: A brass pin in the middle of the cell that conducts electricity to the outside circuit. <br />Battery Parts<br />