What have I learnt about electricity?

The last unit we've studied has been electricity. It was a very interesting unit, where we've learned and done many things!  We also watched some videos in Edpuzzle in order to improve our knowledge on electricity.

We learned how to work with the Crocclip program. I think this program is very interesting ad useful, because you can draw and test any kind of electrical circuit, in series, parallel, with transistors, LDRs... any kind of circuit. With the Crocclip, I also learned the symbols of the components of the circuits, because you could choose either working with symbols or pictures. With this program we basically learnt how to work with bulbs, LEDs, LDR, resistances and transistors, because they were the components we needed for our project that we made later. It's a very useful tool!

                   

We also did some exercises in order to practice the units and magnitudes of electricity. We learned how to calculate voltage (volts), power (watts), resistance (ohms) and energy (kWxH). We also studied Ohm's Law, which says that voltage is current per resistance. This was a very interesting activity because we practiced a lot with these magnitudes and units!

After practicing with units and magnitudes, and working with de Crocclip, we had to put the theory in practice. We had to build a project with some LEDs, resistances, transistors and LDRs. My partner and I decided to do an airport landing track. First, we made the skeleton of the project with some wood. We painted it so it seemed like a real landing track. Then, we built a prototype of the electrical circuit to make sure it worked. Our circuit consisted of: Two batteries of 4.5 volts in series, two resistances (one for the LEDs and the other for the transistor), one transistor, six LEDs in parallel and an LDR. When we were sure it worked, we introduced the final circuit in the wood plank. We had some problems, because some of the LEDs didn't work the first time, but in general it was very productive and interesting to build this project!  

Finally, we also watched, as usual, some videos in Edpuzzle in order to learn some theory and improve our knowledge. We watched a video about Ohm's Law, another about Electricity in general, and the last one about Watts. I think watching these videos in Edpuzzle is very useful because they're very catchy and visual, and keeps our attention. I love it!