 # The amount of charge passing a point in a given time interval is.

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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

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