The amount of charge passing a point in a given time interval is
current
Opposite charges ______
Attract
Like charges _______
repel
The amount of potential energy stored in a battery is measured in _______
volts
A material in which electrical charges do not move freely
insulator
The heating wire in a toaster is low/high resistance
high
Electrical wiring is low/high resistance
low
A lightbulb filament is low/high resistance
high
If the voltage goes up, the current (increases, decreases)
increases
If the resistance decreases, the current (increases, decreases)
increases
An accumulation of electrical charges on an insulator is
Static electricity
In order to separate positive and negative charges, ______ must be added
energy
Conductors (will/will not) hold a static charge
Will not
Give 2 examples of an insulator
Plastic, glass, wood, rubber
The amount of energy which is changed into heat and light as an electrical current flows through the material
resistance
Electrical energy which is converted into heat, light, and sound when the electricity leaves the object
Electrical discharge
What is the formula for Ohm’s Law?
R = V/I
The small particles that make up matter
atoms
What method is involved when charges in an uncharged metal object are rearranged without direct contact with a charged object?
induction
Method of charging in which electrons are wiped from one object to another
friction
Material that allows charges to move freely
conductor
The force between two charged objects
Electrical force
The region around a charged object where a force is exerted on other objects
Electrical field
Expressed in Amps
current
What are the 3 parts in a circuit?
Voltage, resistance, current
What is the current when a 12-volt battery is connected through a resistance of 240 ohms?
.05 amps
What voltage produced a current of 100 amps with a resistance of 10 ohms?
1000 volts