Sunday, February 6, 2011

Energy Ball


Last Friday, we were able to run tests on a ping pong shaped object that had a circuit inside with a light bulb. In a group of four, we were given questions to answer relating the circuit. Questions relating to how the light bulb would light and would it light with more than one person connecting the circuit. The "ping pong ball" had two metal strips on the side, and in order to light the bulb, you had to touch both strips. Our fingers acted like a conductor. The light bulb will then light up, and make a noise.

We then had one person touching one strip, the next person touching the other person's hand, and another person touching the hand of the last person, until the 4th person touched the third person's hand with one hand and the remaining metal strip with the other hand. This allowed the circuit to be complete.

Our big next task involved the whole class to work together. Our objective was to make a parallel circuit with two light bulb and a switch to turn off one light bulb when needed. In order to do this we connected people in a circle with the light bulb on opposite ends. Then had a line of people in between the light bulb. A parallel circuit is like having two circuits that are connected to one another.

In a series circuit, if a component of the circuit burns out, then the rest will not work and the circuit will not be complete. If a component in the parallel circuit burns out, the rest will still work.

PARALLEL CIRCUIT


   SERIES CIRCUIT

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