Physics is all about using your brain, and coming up with answers. Sometimes the best way of learning is by peforming an experiment and seeing the results for yourself. On Friday, we did a mini experiment with a small energy ball and answered a set of questions.
1. Q: Can you make the energy ball work? What do you think makes the ball flash and hum?
A: The energy ball has two metal parts, and when you place both of your fingers on the metals, it will light up and hum.
2. Q: Why do you have to touch both metal contacts to make the ball work?
A: In order to make the ball work, when you place one finger on each metal contact, it creates a closed circuit which is what causes the ball to light up and hum.
3. Q: Will the ball light up if you connect the contacts with any metal?
A: Through experiment, we have concluded that the metal ball will not work with any material, but only with ones that conduct electricity.
4. Q: Which materials will make the energy ball work?
A: Materials like metal, copper and lead will make the energy ball work, because they are all good conductors of electricity.
5. Q: This ball does not work on certain individual- What could cause this to happen?
A: If the individual is wearing gloves or a cloth on their hand it will not work. Also if you use your fingernails, it will also not work.
6. Q: Can you make the energy ball work with all 5-6 individuals in your group? Will it work with the entire class?
A: Making the ball work with 5-6 people or everyone in the class is certainly no problem. As long as everyone is connected to one another, and two people are touching the metal part of the ball.
7. Q: What kind of a circuit can you form with one energy ball?
A: The kind of circuit you can create with one energy ball is series and parallel circuit, depending on how everyone is creating the circuit.
8. Q: Given two balls can you create a circuit whete both balls light up?
A: Yes it is possible to create a circuit where both of the balls light up.
9. Q: What do you think will happen if one person lets go of the other person's hand and why?
A: Depending on the type of circuit that has been created, the ball will or will not stop working. If there is a parallel circuit, depending on where you disconnect the circuit, the ball will still work. If it is a series circuit, no matter where you disconnect the wire, the ball will stop working.
10. Q: Does it matter who lets go?
A: In a seies circuit, it does not matter who lets go, the ball will stop working either way. But in a parallel circuit, if the parallel wires are disconected, the ball will continue to work, but if the circuit is cut off at one of the two ends that are connected to the ball, the ball will not hum or light up.
11. Q: Can you create a circuit where only one ball light?
A: Yes you can create a circuit which has two balls connected to it, but only manage to turn one on. You can do this by creating a parallel circuit, and connected the two balls at two different ends.
12. Q: What is the maximum number of people required to complete this?
A: The maximum number of people you need to make one out of two balls work is three people.
What is the difference between a parallel and series circuit?
In a series circuit, the loads are connected in a row after each other in one path. However a parallel circuit the loads are beside each other, each on a separate wire, both connected to the main source. These two circuits perform in different ways in which potential difference and current each perform separate tasks.
That is all for today.
Make sure you guys download the assignment Mr.Chung has left for us, because it is due in two weeks!
Bye.
-Peggy.
1. Q: Can you make the energy ball work? What do you think makes the ball flash and hum?
A: The energy ball has two metal parts, and when you place both of your fingers on the metals, it will light up and hum.
2. Q: Why do you have to touch both metal contacts to make the ball work?
A: In order to make the ball work, when you place one finger on each metal contact, it creates a closed circuit which is what causes the ball to light up and hum.
3. Q: Will the ball light up if you connect the contacts with any metal?
A: Through experiment, we have concluded that the metal ball will not work with any material, but only with ones that conduct electricity.
4. Q: Which materials will make the energy ball work?
A: Materials like metal, copper and lead will make the energy ball work, because they are all good conductors of electricity.
5. Q: This ball does not work on certain individual- What could cause this to happen?
A: If the individual is wearing gloves or a cloth on their hand it will not work. Also if you use your fingernails, it will also not work.
6. Q: Can you make the energy ball work with all 5-6 individuals in your group? Will it work with the entire class?
A: Making the ball work with 5-6 people or everyone in the class is certainly no problem. As long as everyone is connected to one another, and two people are touching the metal part of the ball.
7. Q: What kind of a circuit can you form with one energy ball?
A: The kind of circuit you can create with one energy ball is series and parallel circuit, depending on how everyone is creating the circuit.
8. Q: Given two balls can you create a circuit whete both balls light up?
A: Yes it is possible to create a circuit where both of the balls light up.
9. Q: What do you think will happen if one person lets go of the other person's hand and why?
A: Depending on the type of circuit that has been created, the ball will or will not stop working. If there is a parallel circuit, depending on where you disconnect the circuit, the ball will still work. If it is a series circuit, no matter where you disconnect the wire, the ball will stop working.
10. Q: Does it matter who lets go?
A: In a seies circuit, it does not matter who lets go, the ball will stop working either way. But in a parallel circuit, if the parallel wires are disconected, the ball will continue to work, but if the circuit is cut off at one of the two ends that are connected to the ball, the ball will not hum or light up.
11. Q: Can you create a circuit where only one ball light?
A: Yes you can create a circuit which has two balls connected to it, but only manage to turn one on. You can do this by creating a parallel circuit, and connected the two balls at two different ends.
12. Q: What is the maximum number of people required to complete this?
A: The maximum number of people you need to make one out of two balls work is three people.
What is the difference between a parallel and series circuit?
In a series circuit, the loads are connected in a row after each other in one path. However a parallel circuit the loads are beside each other, each on a separate wire, both connected to the main source. These two circuits perform in different ways in which potential difference and current each perform separate tasks.
That is all for today.
Make sure you guys download the assignment Mr.Chung has left for us, because it is due in two weeks!
Bye.
-Peggy.
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