Charges
Opposite charges_____________ and like charges _________________.
attract, repel
Rubbing a balloon against your hair is an example of building static charge through ________________.
friction
What is the continuous flow of electric charge called?
electric current
switch
What is the units of voltage?
volts
The 2 kinds of charges are ___________ and __________.
positive, negative
charges build up and so they are attracted to neutrally charged and oppositely charged objects.
Current that only flows in one direction is called __________________.
Direct Current (DC)
A circuit where there is only one path for electricity to flow is called a _____________ circuit.
series
What are the units of current?
amps
Protons are ___________ charged subatomic particles located in the nucleus of an atom.
positively
On the van de graff generator __________ charge was built up on the silver ball
positive
Current that flows in more than one direction and can change directions is called ____________.
Alternating current (AC)
If 3 lightbulbs are in a parallel circuit, will removing 2 of the lightbulbs turn off the other lightbulb?
No!
What are the units of electric charge?
Net electric charge develops when....
The number of electrons is more or less than the number of protons in an atom.
When you touch a doorknob and get shocked, the charge is being transferred by ________________.
induction
The electric force around a _____________ charge is away from the charge.
positive.
If 2 light bulbs are in a circuit but are much more dim than if they were in a circuit by themselves they are probably in a ______________ circuit.
series
What are the units of resistance?
ohms
For an atom to be neutral the number of ___________ and ____________ must be equal.
protons and electrons
When a pathway for charge to move is suddenly formed, it can result in things like lightning. This is ________________________.
Static Discharge
Are most houses powered using alternating current or direct current?
Alternating Current!
What will increasing the voltage do to the brightness of a light bulb in a circuit?
increase the brightness.
What is Ohm's Law equation?
V = I x R