What is the component we've used as our source of electricity in most of our circuit experiments?
D-cell (battery)
100
True or False: The magnetism produced by an electromagnet can be turned on and off?
True
100
What is the name of a circuit with only one pathway for current to flow?
Series
100
Who invented the light bulb?
Thomas Edison
200
What is plastic or rubber?
An insulator
200
What is the name of the drawing electricians and others use to represent a circuit and it's components?
Schematic diagram
200
Fill in the blank: The __________ number of winds around the iron core, the weaker the magnetism produced.
Less
200
Fill in the blank: D-cells in series circuits must be oriented in the ______ direction.
Same
200
What is the part of the lightbulb that gets hot and produces light?
filament
300
What is copper or aluminum?
A conductor
300
What type of circuit doesn't allow an electric current to flow through?
Open circuit
300
DAILY DOUBLE!!! Before inventing the Morse Code, Samuel Morse invented another way to communicate, which was a system that used flags to spell out a message. What was this new way of sending messages called?
semaphore
300
What happens to all the bulbs in a parallel circuit when one bulb goes out?
the others remain lit
300
What is the device used to open and close a circuit?
switch
400
What are materials that do not allow the flow of electricity?
Insulators
400
DAILY DOUBLE!!!!!!
Name one component that can be used in a circuit as an energy receiver.
Motor or light bulb
400
What is a device used for sending coded messages?
Telegraph
400
What is this a picture of?
Series
400
D-cells, bulbs, and wires are examples of?
circuit components
500
What is the definition of a conductor?
A material which an electric current can easily flow through.
500
What type of circuit is this?
parallel circuit
500
Describe how an electromagnet can be made.
By winding an insulated wire around an iron core and running current through the wire.
500
Which circuit can run more components (bulbs, motors) from one D-cell?
Parallel - because each component has a direct pathway to the source.
500
What is one way to make a light bulb shiner more brightly?