What is an imbalance of protons and electrons on an object going to cause?
Static charge
100
What type of circuit is most helpful for Christmas lights?
Parallel circuit
100
A circuit has 20 ohms of resistance and 120 Volts of voltage. What is the current?
6 Amps
100
What are two possible outcomes of placing an object with high resistance in an electrical circuit?
Fire and no current
100
What is the symbol for current?
I
200
What happens when two opposite charged objects come together?
They attract
200
Electricity will always travel _______________.
path of least resistance
200
The current in a wire is 15 amps. The resistance is 4 ohms. What is the voltage?
60 volts
200
An object that allows electrons to flow through it easily is called an ______________.
Electrical conductor
200
The units for current is ___________
ohms
300
If an object tends to lose electrons its charge is __________.
positive
300
An electrical plug with two wires has two wires so that electrons can ____________.
travel out one wire and in the other
300
A circuit has 120 volts and 24 amps. What is the resistance?
5 ohms
300
An electric circuit with more than one path for the electrons to flow is called a _______________.
parallel circuit
300
The symbol for an ohm is ___________.
Greek letter omega
400
If a balloon is carrying static charge, it will do what to a flowing stream of water?
Attract it
400
If your hair is sticking straight out on a stormy day, what will happen?
You will be struck by lightning.
400
The current is 30 mAmps and the resistance is 7 ohms. What is the voltage?
0.21 volts
400
If a resistor is removed from a circuit and more gray spheres are moving in the wire (simulation program) what else changed?
Increase in current
400
What is the unit for electrical power?
Watt
500
The strength of an electric force depends on what two things?
amount of charge on both objects and the distance between them
500
Pulling apart the sock and towel from the dryer can make a snap and a light(in a dark room). This is called ____
electric discharge
500
A wire, battery and light are attached in a line. The resistance is 20 ohms and the voltage is 60 volts. What is the current?
zero
500
A circuit that has one light bulb generates 50 mAmps of current. What will happen to the current if a second bulb just like the first is added to the circuit?
Current is reduced by half 25 mAmps. Bulb will shine less bright. (both required)
500
What is the unit and variable for current in that order?