Energetic efficiency

Energetic efficiency is about how much energy we use to do something. Let's say you need to bake some cookies. You could use a lot of energy by using an oven that takes a long time to heat up, or you could use a more efficient oven that heats up quickly and doesn't use as much energy.

In the same way, when we talk about how efficient a car is, we are talking about how much energy it uses to go a certain distance. A car that uses a lot of gas to go a short distance is not very efficient. A car that uses less gas to go the same distance is more efficient.

There are many things that can affect energetic efficiency, such as the type of technology we use, how we use it, and even the weather outside. By being more efficient with our energy, we can save money, help the environment, and do things more effectively.