Experiences

Electric voltage

Ralitsa Ognyanova Tsibrova

Bulgaria

High Secondary School

Physics

Teaching in class

Success

I did not understand what exactly voltage is and how it is an indicator of energy. But the teacher used a very simple example.
She explained voltage is what the electron gives to the things which it goes through. If the electron is a ball and you're battery and throw the ball, you give it energy and it moves forward. We have the following important things to consider: 1) the harder you throw the ball, the more energy you give it (in this case, is the energy of movement, but when it comes to real electron and a battery - it's electricity) 2) while the ball flies somewhere, it can go through different materials such as paper and if you throw it harder, even wood, glass, metal. Once the ball goes through them, it begins to run at a slower speed because going through the material it has lost part of its energy.