Electromagnets

Electromagnets

​What is a solonoid?

The word "solenoid" originates from the Greek word "solen," which translates to "channel" or "pipe."

​A solenoid is a coil of wire that acts as a magnet.

​https://ccalms.blob.core.windows.net/production/31448/c7e1e985-b547-4dd1-8142-d3061b767826-20240122144922843-Oxygen_is_MAGNETIC_!_(HD_1080_-_WEB_(H264_4000)).mp4

​Who knows what Oxygen is?

Do you think Oxygen can be magnetic?

Word Cloud

What do you think of when you hear the word electromaget? What comes to mind?

​In today's lesson, you will learn about electromagnets like the one used in the video. Electromagnets combine the properties of both electricity and magnetism. As you complete the lesson, think about the ways that electricity and magnetism are related.

​Science notebook!

​The large magnet in the video at the beginning of the lesson is an electromagnet. An electromagnet is an object that acts as a magnet when electricity passes through it. Electromagnets generally produce stronger electric force than a standard magnet.

​Electromagnets come in many sizes and shapes. However, all electromagnets contain:

• power source

• copper wire

• iron core

​Let's label the parts of an
electromagnet

Fill in the Blanks

Why do you think we wrap copper wire around an iron core? What does that do?

​https://ccalms.blob.core.windows.net/production/31448/2eb26586-345d-4918-9b59-bc34c99de530-20240122150622884-How_Does_an_Electromagnet_Work__(HD_1080_-_WEB_(H264_4000)).mp4

​Let's watch the video below to learn more about electromagnets

Multiple Choice

Which of the following will increase the strength of the magnetic field produced by an electromagnet?

• 
  Add an iron core to the solenoid.

• Disconnect the power source.

• 
  Reduce the number of coils in the solenoid.

• Reverse the flow of electricity.

​Gimkit time!