The use of energy

Fred
Fred

Lilly
Lilly

„ Oh. For this it surely needs a lot of energy? “
„ Wait a minute... now, that you have said this, this may certainly help us. The thing with the energy is similar to the lamp, I think. “
„ That's right! There is also energy stored in the battery which is used in the light bulb then. Now it is even apparent to me, that the lamp and the light bulb also always ...
  • ... hum.“
  • ... heat up.“
    • „ Until now we know that a current flows in our electric devices and thereby they are heated up. The energy for that comes from the battery. Somehow, we have to think about what happens with the energy. “
    „ I think now it is clear to me. The devices are heated up when they use the energy of the battery. That means, ... “