Electricity and Magnetism

IS ELECTRICITY SAFE?

Electricity is measured in units of volts, amps or watts. The higher the voltage, the more dangerous the electricity is.

1 breadboard
2 batteries in holders
2 light bulbs
2 wires with washers
push pins

1. Build the simple circuit with a single battery. Light the lamp.

2. Now replace the single battery by 2 batteries with both + signs in the same direction. What happens?

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3. Now reverse one of the batteries so that the two + signs are together. What happens? Why?

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4. What do you think would happen if you used 4 batteries to light one lamp?

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Try it with your neighbor.

Each D-Cell is 1.5 volts. How many volts do two D-Cells have?_______

What voltage is used in your house and school? _______

THE VOLTAGE IN YOUR HOUSE AND SCHOOL IS A LOT HIGHER THAN WE USE IN THESE EXPERIMENTS. NEVER TRY THESE THINGS USING ELECTRICITY FROM A WALL OUTLET!!