Electricity

Voltage (volts)

= Current (amperes) x Resistance (Ohms)

Greater amount of particles

= greater electric field

Long, thin wire at a high temperature

= highest resistance

Current electricity?

= kinetic energy

Short, thick wire at a low temperature

= lowest resistance

Static electricity?

= potential energy

What is the difference between a conductor and an insulator?

A conductor allows electric current to flow easily, an insulator does not.

Why don't protons move?

Because it would change the element

Current

Flowing electricity measured in amperes

How are resistance and current related?

If you increase the resistance, the current decreases

How are voltage and current related?

If you increase the voltage the current will increase

How does increasing the voltage affect current?

It increases the current

Law of Electrical Charges

Like charges will repel, unlike charges will attract

How is static electricity different form current electricity?

Static is potential energy and current is kinetic

Resistance

That which slows the flow of electrons in a circuit, measured in ohms.

How are the shock you receive from a metal doorknob similar to a bolt of lightening?

The are both examples of electrical discharge.

Electric force

The force between charged objects

Voltage

The pressure (force) that pushes electrons through a circuit, measure in volts

Electric force

attraction or repulsion between electric charges

Strength of the electric field of a charged particle

becomes greater as the distance from the particle decreases

Law of Conservation

states that charges are not created or destroyed

Conductor (wire), Voltage source (battery), Resistor (light bulb)

three basis features that all electric circuits must have

Conduction

transfer of charge by direct contact (example: socks touching skin transfer electrons)

Induction

transfer of charge through an electric field (example: finger near doorknob)

Friction

transfer of charge through rubbing (example: rubbing socks on carpet)