# Electricity

### Katya Heredia, Ally Harris, Zach Johnson, & Keith Goings

## circuits

A circuit is a closed loop that electrons can travel in. Every electrical appliance in your home, whether it's battery operated or you plug it in, is a circuit. There can not be a break in a circuit because the electrons need to flow through the circuit in order for it to function.

## Electrons

- flow is determined by the battery
- flow is always from negative to positive
- electron loss=object is positively charged
- electron gain=object is negatively charged
- electrons that are bound loosely are conductors (metals and glass)
- electrons that are bound tightly are insulators (plastic, wood, and RUBBER)
- opposite charges attract and negative charges rebel

## Series Circuits

- single current paths
- current is always the same throughout the circuit and is measured in Amps
- resistance total is all resistors combined
- resistors represent a given amount of resistance in a circuit and DO NOT have to be the same value (bulbs)
- resistance is the hindrance to the flow of the charge measured in Ohms

## Our Circuit

- simple circuit
- lever, 2 alligator clips, 1 resistor (bulb), and a battery

**Fake scenario using Ohms Law for our circuit:**

Zach is using his handy-dandy straightener to straighten Keith's hair for picture day. The straightener draws a current of 2.26 Amps on a 5.87 V outlet, how much resistance would the straightener draw?

## (A) vs (V) Graph showing the straighteners draw of current and the voltage of the outlet. | ## One-Bulb Circuit- bulb (resistor)
- battery
- alligator clips
- lever
| ## Current (A) Graph representing the current of our one-bulb circuit. |