Electricity does not occupy space or have mass, so it is not matter

Electricity is the movement of electrons from one atom to another along a __

Electricity is a form of energy, that when in motion, exhibits __ effects

An electric current is the flow of electricity along a ___

__ is the flow of electricity along a conductor:

All materials can be classified as conductors or non-conductors depending on the ease in which an electric current can be transmitted through them

Copper and most metals:

Distilled water:

Tap water:

River or lake water:

Copper is a particularly good conductor and is used in:

Pure distilled water is a poor conductor, but the __ usually found in ordinary water, like river or lake water, make it a good conductor:

A non-conductor is also known as an:

Good insulator:

A non-conductor:

A __ is the path that negative and positive electric currents take from the generating source through the conductors and back to the generating source:

There are __ types of electric current:

A constant, even-flowing current that travels in one direction only and is produced by chemical means:

Direct current travels in more than one direction

Flashlights, cell phones, and cordless tools use this type of electricity, produced by batteries:

___ is an apparatus that changes direct current to alternating current

___ is an apparatus that changes alternating current to direct current

__ usually has a plug and a cord

A phone charger in the car is an example:

A rapid and interrupted current, flowing first in one direction and then in the opposite direction:

Produced by mechanical means and changes directions 60 times per second:

Corded hairdryers, curling irons, electric files, and table lamps that plug into a wall outlet use:

Cordless electric clippers and phone chargers use:

Travels in one direction:

Constant, even flow:

Produced by chemical means:

Rapid and interrupted flow:

Travels in two directions:

Produced by mechanical means:

Without __, neither water nor electricity would flow:

Measures pressure or force that pushes electric current through a conductor:

Car batteries:

Normal electric wall sockets that power your tools:

Most air conditioners and clothes dryers run on:

Higher voltage indicates:

Measures the strength of an electric current:

A hairdryer rated at 12 amps must have a cord that is __ as one rated as 6 amps, otherwise the cord might overheat and start a fire:

A higher amp rating indicates a greater number of __ and a stronger current:

A milliampere is 1/1,000 of an ampere

The current used for facial and scalp treatments:

If used for facials and scalp treatments, an __, current would damage the skin or body:

A unit that measures the resistance of an electric current:

Current will not flow through a conductor unless the force/volts is stronger than the resistance/___

1 kWh will power a television for __

1 kWh will run a 100-W bulb for 12 hours

1 kWh will power an electric clock for __

A unit that measures how much electric energy is being used in one second:

A 40-W lightbulb uses 40-W of energy per second

The electricity in your house is measured in __ per hour

A 1000 watt (1 kW) hairdryer of uses 1000 watts of energy per __