From Battery to Circuit (Energy Transformation)

Today in class, we watched a video about circuits. It was basically about the flow of electrons and how dangerous it is to fly a kite in the air to discover electricity.

Battery: provides the power needed to operate the circuit (can also be another power source such as solar energy, wind energy, etc.)

Conventional Current (I): movement of the positive charge (incorrect way but has become standardized) from positive to negative

Electron Flow: movement of electrons; from negative to positive

*These two does not make a difference as long it is used consistently

The current flows out of the positive side, through the circuit, and into the negative terminal of the source. The movement or flow of electrons in a closed circuit produces electricity . The electrons aren't consumed by the light bulb either.  

And this is the formula used to calculate current

Current (I) - a measure of the rate of flow of electrons in a conductor; measured in amperes (A)

Q - electric charge; measured in units called coulombs (C)

 t  - time; measured in seconds (s)

Energy Transformation

Energy from the battery as it moves to the circuit and into the light bulb 

Chemical energy -> electric energy -> heat/ thermal energy and light energy