Circuit Builder Gizmo
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by Natalie Dyer
| 11 Questions
Note from the author:
Students will build a virtual electric circuit and answer questions.
1
1
What do a light bulb, a toaster, a radio, and a computer all have in common?
2
1
Suppose you connect a battery to a small light bulb with a single wire. What do you think will happen? Explain your answer.
3
1
Now try to light the bulb with the smallest number of components. Draw your ciruit in this space.
4
1
Based on what you have seen, what must be true for a circuit to light a bulb?
There has to be a lightbulb and conductor (wires).
There has to be an energy source (a battery).
There can't be any gaps in the path.
All of the above.
What materials will CLOSE a circuit?
Conductors are materials with easily moveable charges, allowing current to occur.
Insulators do not have easily movable charges, so current is not produced.
5
1
Look at the nine Materials in the lower left of the Gizmo. Select all that you think will be conductors. (There is no right or wrong answer, just make a prediction!)
Mechanical Pencil Lead
Glass
Iron
Silver
Wood
Brass
Plastic
Copper
Yarn
6
1
Look at the nine Materials in the lower left of the Gizmo. Select all that you think will be insulators. (There is no right or wrong answer, just make a prediction!)
Mechanical Pencil Lead
Glass
Iron
Silver
Wood
Brass
Plastic
Copper
Yarn
7
1
Experiment: Drag each material into the gap of the open circuit you made. If the light bulb lights, the material is a conductor. If not, the material is an insulator. Keep track of your findings below.
8
1
Which materials were conductors? (There ARE right or wrong answers for this one.)
Mechanical Pencil Lead
Glass
Iron
Silver
Wood
Brass
Plastic
Copper
Yarn
9
1
Which materials were insulators? (There ARE right or wrong answers for this one.)
Mechanical Pencil Lead
Glass
Iron
Silver
Wood
Brass
Plastic
Copper
Yarn
10
1
What kind of material are most conductors made of?
Cotton
Metal
Plastic
Wood
11
1
Did any conductor have a different effect on the light bulb than the others? Which one? What happened?
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