A material that lets electric current flow through it is called...
A conductor
This week's temperature is predicted be very cold. You find an old heater in the garage and want to find out if it still works. Which actions would provide evidence that the heater is still working?
A. The heater is plugged in.
B. The switch is on.
C. The heater power button is lit.
C is correct because it is the only option where we can see or hear the energy going through the circuit.
Draw the electric current as it lights this bulb:
What is an insulator?
A material that does not allow electric current to flow through it.
A process that causes things to happen is called?
Energy
You and your friend are having a discussion about the batteries in their new toy. Your friend says, "I just don't understand why the battery is so big! My other toy takes smaller batteries." Explain one reason that the battery in your friends new toy is bigger.
Series circuits take more energy then parallel. There might be more components in the new toy then the old.
What is missing?
A third wire.
Energy Source
A place where energy comes from or is stored.
A circuit that has all the components lined up on after the other.
Series Circuit
A group of students in another class needs your help. They are trying to check to see if plastic rod will conduct electricity. They place the plastic rod on a sheet of copper and touch the wires to the rod and the sheet. The light bulb lights. What is wrong with the groups set up?
The wire is touching the metal sheet which will cause the lightbulb to light. They need to remove the sheet to be able to test the plastic rod.
Will the light bulb light? Explain.
Yes, because the contact points are the side and bottom of the lightbulb.
Parallel Circuit
A circuit that splits and goes to two or more components.
Energy that comes from an energy source that is used to power the technology around us.
Electrical Energy
You are trying to buy Christmas lights for your yard. You want to buy lights that will not go out if one light burns up. Which kind of circuit should you buy?
Parallel Circuit
Will the lightbulb light?
No, because the contact points are the side and bottom of the lightbulb. It needs to touch both!
Contact Point
The specific place that wires need to connect to the different components.
The movement of energy from a power source through a circuit.
Electricity
Someone who works in the city office says, "Some lightbulbs get hotter than others. In the winter, hot bulbs make the office warmer." Which plan would be the best fair test to find out how room temperature is affected by the different kinds of bulbs.
A. Put the bulbs in different rooms and check the temperature.
B. Put the bulb in the same room at different times of day to check the temperature.
C. Put all three bulbs in the same room and check the temperature.
A
Will the lighbulb and/ or motor turn on in this circuit? Explain.
The lightbulb will light because it is properly connected to the power source. The motor will not work because it is not connected to both ends of the power source.
System
An organized group of related objects that work together.