Electricity Notes

The protons are positively charged and are found "locked" in the nucleus with the neutrons

The electrons are negatively charged and are moving around the electron clouds, and are not "locked" into position

Electricity is the free movement of electrons


Current

Current = the rate of movement of electrons can be measured over a certain amount of time - the speed of which the electricity is moving

Sometimes, the flow of electrons is slowed down by any number of factors include:

Materials - what the electrons are moving through

Temperature - how warm or cold the materials are

Length - how far the electrons need to move

Cross section - how wide the area is the electrons are trying to move through


Batteries and energy

Electrical Potential Energy (EPE) = a difference between voltage between two points

Battery - a device that converts chemical potential energy (CPE) to electrical potential energy (EPE)

Electrical potential energy is changed to thermal energy, light, mechanical energy as the electricity moves through the different materials.

A circuit is a complete path for the movement of a charge