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41 Cards in this Set

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  • Back
Electrons will flow because they are on the outside or inside of the atom?
Outside
What is the unit of resistance in electricity?
Ohms
What is the thickness of a wire?
Gauge
What is the charge on a proton, positive or negative?
Positive
What is the thing outside of your home that changes the voltage into 220?
Transformer
What is the greek symbol for the unit Ohm?
Omega
What is electrical potential energy?
Voltage
Opposite charges will do this.
attract
What happens to resistance as the temperature is increased?
The resistance gets higher
What type of phase electricity would a factory or something that needs a lot of power?
Three phase
What happens to a wire's resistance as the wire gets thicker?
The resistance lowers
How many times per minute do a three phase electricity hits 0 volts?
zero
What is friction in electricity known as?
resistance
What does the "A" stand for in AC?
Alternating
This is the same thing as a joule/coulomb...
volt
What is the rate of doing electrical work?
watt
What type of current does a battery produce?
direct (DC)
What is the third prong on a plug called and what does it do?
It is called a ground and it is where we hope current flows if an electrical device is not functioning correctly.
You generate this when you are touching the ground and high voltage at the same time.
potential difference
What is the frequency of AC current in Europe?
Fifty
What is the name of the generator that produces AC current?
alternator
What is the device in your home that prevents you from drawing too much current and will shut off the power?
circuit breaker
One of these is equal to 6.26 x 10~18
coulomb
What is the same thing as a coulomb per second?
Amp
What is the flow of electrons called?
current
Using ohm's law, what happens to current if resistance doubles?
The current decreases into half of what it was
What is the law that shows the relationship between voltage, current and resistance?
ohm's law
What resource does Ohio produce the most or their electricity from?
coal
What is the on an electron (positive or negative)?
negative
What is the unit of current?
Amps
What is the form of energy that deals with moving charge?
electricity
When an electrical circuit is overloaded and the circuit shuts-off we say that it did this...
trip
What is the flow of electrons called?
current
Who invented AC?
Tesla
Using the ohm's law, what happens to current if voltage doubles?
doubles
What machine generates charge?
vandegraf
What charge is made from friction?
static
What is the frequency of AC current in our homes?
sixty
What type of phase electricity that comes into your home?
one phase
What has less resistance, a dry human body or a wet human body?
Wet
Like charges will do this.
Repel