Static Electricity
All matter is made of tiny particles called
ATOMS
This is the path that an electric current takes
electrical circuit
insulator
a material that lets electric current pass through
conductor
Opposite charges
attract
A particle with a negative charged
electrons
What opens and closes the circuits
a switch
Copper wires can in electrical cords can be coated with this to make it safe for us to touch
plastic or rubber
copper
a positive and positive charge will
repel or push away from each other
This is the buildup of electric charge on an object
static electricity
This is a complete path for flow of electric current
closed circuit
List four insulators
rubber, glass, wood, and plastic
insulator
this is the flow of electrons through a wire
electric current
Suppose you begin combing your straight hair. Electrons moved from your hair to the comb. A negative charge builds up on the comb. That leaves your hair with what charge and how does it look?
positive charge and sticking up
In an open circuit what makes the path incomplete for the flow of electric current
the open switch breaks the circuit
What material do some people cook their food in the microwave
plastic or glass without gold or silver rims
Aluminum is a good conductor that is used in most power lines you see along the road. What can move through aluminum
electric current
In order to be useful, Electrical energy must change to what other forms of energy
light, heat, sound, and motion
This happens when electrons buildup in a cloud and an object on the ground has positive charges they then attract
lightning
A simple circuit has four main parts
an electrical source, a load, a connector, and a switch
Your computer charger is insulated with what material
rubber
All materials in a circuit must be _____________ for the pathway to stay closed
conductors
When a fan spins, electrical energy can change into what form of energy
motion