The flow of electrical charges is called an electric _________.
Current.
100
Name the three types of energy that electrical energy can be converted into.
Heat, light and motion.
100
An insulator.
Wood, plastic, glass and rubber.
100
Why does cat hair stick to clothing?
Cat hair sticks to clothing because they are both electrically charged.
200
If I have two negative charges next to each other, what will happen?
They will REPEL!!!
200
The path along which an electric current flows is called a _______.
Circuit.
200
What is used to change the voltage of electric currents?
Transformers.
200
A conductor.
Metals like copper and silver.
200
Why does a balloon stick to the wall if your rub the two together?
A balloon sticks to the wall when you rub them together because the charges in the balloon cause the charges in the wall to move. The charges are attracted to each other.
300
The buildup of electrical charges on an object is called what?
Static electricity
300
In a series circuit, charges flow in a ____ direction along a _____ path.
Same, single.
300
A motor converts electrical energy into what type of energy?
Motion.
300
Static electricity.
Lightning. This is because negative charges in the clouds rush towards positive charges on the ground.
300
If two lights are connected on a parallel circuit, and one goes on, why does the other light not go out?
The other light does not go out because there is more than one path for the energy to go on.
400
What is a material that lets charges flow through it easily?
A conductor.
400
A circuit in which the electric current flows through more than one path is called a _______ circuit.
Parallel.
400
A lightbulb converts electrical energy into what type of energy?
Light.
400
Electrical energy converted into heat energy.
Hair dryer, clothes dryer, microwave, heater.
400
Why do electrical tools have rubber or plastic handles?
Electrical tools have rubber and plastic handles because these matierals are insulators. This will stop electricity from shocking the person holding it.
500
What is an example of an insulator?
Wood, rubber, plastic and glass are examples of insulators.
500
A _____ circuit is one that has little resistance.
Short.
500
Name one things that things that protects against high electric current.
Circuit breaker, fuse, surge protector.
500
One reason fourth grade is awesome.
There are just too many to choose from...
500
Why do we use transformers?
We use transformers because there is less voltage needed inside our houses than is in high power lines.