Circuit qustions#1-12

1. Can you make the energy ball work? What do you think makes the ball flash and hum?


Yes, I can make the energy ball work. I think we are good conductors and static electricity container. By touching both metal contacts, I am actually forming a closed circuit. And I think the battery is inside the ball, once the two metal contacts are connected by a conductor, the ball will flash and hum.

2. Why do you have to touch both metal contacts to make the ball work?

The two metal contacts are necessary to form a closed circuit, because the electric current is travelling from positive to negative. Therefore, 2 metal contacts are needed to complete this action.

3. Will the ball light up if you connect the contacts with any material?

No, the ball wouldn’t light up if I connect it with any materials, because not all materials are conductors.

4. Which materials will make the energy ball work? Test your hypothesis.

I think metal will make the energy ball work. I used my silver necklace to test my hypothesis and it did work.

5. This ball does not work on certain individual, what could cause this to happen?

Perhaps that certain individual is not using his or her bare skin to connect to the metal contacts, or perhaps his or her body doesn’t have electrolyte or water.

6. Can you make the energy ball work with all 5-6 individuals in your group? Will it work with the entire class?

Yes and our class had tested it.

7. What kind of a circuit can you form with 1 energy ball?

Simple circuit would form with one energy ball.

8. Given 2 balls (combine 2 groups): can you create a circuit where both balls light up?

Yes, we formed a series circuit in order to light both balls up.

9. What do you think will happen if one person let go of the other person’s hand and why?

I think if one person let go of the other person’s hand, the whole circuit will break, and the two balls will stop flashing.

10. Does it matter who let’s go?

No, it doesn’t matter, because in a series circuit, no matter which part is broken, the whole circuit is broken.

11. Can you create a circuit where only 1 ball lights? Both must be included in the circuit.

Yes, by creating a parallel circuit.

12. What is the minimum number of people required to complete this?

I think the minimum number of people required to complete a parallel circuit is 2 people.