CONDUCTOR VERSUS INSULATOR
Which item is a conductor and which item is an insulator?
q-tip and bobby pin
Q tip is an insulator
Bobby pin is a conductor
static
True or False: An object that has no charge is considered equal.
False, it is considered neutral.
Look at the waterslide picture. What kind of circuit is this demonstrating and why?
It is a series circuit because the people are following one continuous path to get up the stairs and down the slide.
What weather has electricity being discharged into the atmosphere?
Lightning
Which item is a conductor and which item is an insulator?
penny and a piece of paper
Penny is a conductor
Piece of paper is an insulator
positive and negative
True or False: A positively charged object and a negatively charged object repel each other.
False, they attract each other.
ALSO: A positively charged object can attract a neutral object.
However, two objects with the same charge repel each other!
It is a hazard because the wires are crossed causing the insulating material to burn off the wires leaving them directly exposed which will cause smoke and lead to an electrical fire.
A device that opens or closes the circuit to start or stop the flow of electricity.
A switch
Which item is a conductor and which item is an insulator?
staples and wood stick
Staples are a conductor
Wood stick is an insulator
A circuit is a ______________ ______________ for ______________________.
A circuit is a complete pathway for electricity.
An insulator blocks the flow of electricity in a circuit.
True! It blocks the flow. It DOES NOT allow electricity to move through the circuit.
Why is the second picture a parallel circuit?
It is a parallel circuit because the cars have more than one path they can choose to follow along the road.
To connect an object through a conductor to the ground.
Grounding
Which item is a conductor and which item is an insulator?
sock and nickel
Sock is an insulator
Nickel is a conductor
Much of your life depends on another kind of electricity called ______________ electricity. This means charges move through an object versus staying on the surface like static.
current electricity
A circuit with the wires crossed is called a hazard.
True!
Label all three parts on the basic circuit.
Source
Conductor
Load
A closed circuit that DOES NOT have a useful load.
A short circuit
Which item is a conductor and which item is an insulator?
Glass
Metal necklace
Glass is an insulator
Metal necklace is a conductor
When balloons are rubbed with wool or your hair, you are adding _____________ to the object.
Electrons
True or False: All liquids are conductors.
False, not all liquids can conduct electricity. For example, water cannot conductor electricity.
Label on the picture: open circuit and closed circuit
First picture is open circuit
Second picture is closed circuit
Who is most credited with the invention of the first incandescent lightbulb?
Thomas Edison