Static Electricity is the buildup of electrical charges on an object.
100
What do you call "a path along which electric currents flow"?
a circuit
100
Electrical energy can change its energy in devices 3 different ways.
heat, light, and motion
100
A buildup of electrical charge is called _____.
static electricity
200
What is a discharge?
a discharge is the movement of static electricity from one object to another.
200
If an electrical current can not flow what kind of circuit is it called?
open circuit
200
what is a transformer?
they are used to change the voltage of electric currents.
200
A complete path in which electric current can flow is a ____.
circuit
300
What is the difference between an "insulator" and a "conductor"?
Insulators are materials that do not let charges flow through them easily, where conductors are materials that let charges flow through them easily.
300
When a current can flow through a circuit what is it called?
a closed circuit
300
How does electrical energy travel from the power plant to the home?
The electrical energy leaves the power plant, moves through wire and a series of transformers. The transformers lower the voltage and make the current safe before entering the house.
300
If one bulb in a ____ circuit burns out, the other bulbs in the circuit will still shine.
parallel circuit
400
What builds up on your body as you walk across a carpet?
electric charges
400
How is a series circuit different from a parallel circuit?
If one of the loads in a series circuit does not work, none of the loads will be able to work. If one load in a parallel circuit does not work, other loads will still be able to work.
400
_____ and ______ protect against dangerous amounts of electric current.
circuit breakers and fuses
400
Copper is a good _____ of electrical charges.
Conductor
500
How do opposite and like charges interact when brought near one another and near neutral matter?
Opposite charges attract one another, and like charges repel one another.
500
A __________ can stop the rest of the circuit from operating properly. It can also be dangerous. In a __________, the wire heats up and may cause a fire.
What am I?
a short circuit
500
Why would homes built in recent years have circuit breakers instead of fuses?
Circuit breakers can be reset and reused. The wire in a fuse melts and breaks. The fuse must be replaced.
500
How do people use electrical energy?
People use electrical energy to produce heat, light, and motion for use in different devices, such as toasters, lamps, and electric fans.