How to build an electromagnet

Here are listed the activities you have to do to overcome this lesson:

1. Watch the video. It shows all the steps you have to follow to build an electromagnet..
2. Assembly the electromagnet following the instructions given on the video.
3. While assembling the electromagnet, record a video showing the assembly process.
4. Once it has been assembled, record a video showing the electromagnet already functioning.
5. Finally, create a blog showing the results. At the blog you will have to publish the following entries:

• 1st entry: List of materials and tools. There is a list of materials on the video. You will have to find the name of the materials in Catalan, and introduce them in the list.
• 2nd entry: Video with the assembly of the electromagnet.
• 3rd entry: Video that shows the electromagnet functioning.
• 4th entry: Answer the following questions and publish an entry with the answers.

QUESTIONS

- What is an electromagnet?

- What is the difference between an electromagnet and a permanent magnet?

- Draw an electromagnet and indicate in the drawing where is the core and the coil.

- How can you increase the magnetic force of the electromagnet you've built?

- Why the electromagnet is hot when running?

- What are electromagnets used for?