Electromagnet Lesson

Electromagnet

Draw

Give me a definition of the term electromagnet?

Break it down if you need:

Electro

Magnet

We discussed that opposites attract & like repel.

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That magnets attract to metal and other magnets

​But did you know that Oxygen is Magnetic!

Today we are going to create an electromagnet like the one in the video.

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​Electromagnets combine the properties of Electricity & Magnetism

​We will be taking notes in our Notebook on pages 18 & 19

Using the pieces of the pendulum, string with circles, and bar magnets recreate the pendulum we used on Monday.

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​First we build a pendulum!

Look at the picture and create the electromagnet. Be sure to turn off the switch so you don't waste the battery power.

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​Now let's create the Electromagnet

We will fill this in as we test.

Reorder

Reorder the following so the strongest magnetic field produced will be on the LEFT.

• coiled wire with electric current & iron core

• coiled wire with electric current

• straight wire with electric current

• wire with no electric current

1

2

3

4

• 1
• 2
• 3
• 4

​An object that acts as a magnet when electricity passes through it

Has three parts:
- power source
- copper wire
- Solenoid
iron core & wire wrapped around it

​Electromagnet

Hotspot

Which part of the electromagnet pictured is the power source?

Click on the spot.

A wire coiled around the iron core of an electromagnet.

The more coils around the iron core the stronger the magnetic force produced.

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​Solenoid

Multiple Choice

Which of the following will increase the power of an electromagnet?

• disconnect the power source

• reverse the flow of electricity

• increase the number of wraps around the iron core

• remove the iron core

Draw

How are electrical force and magnetic force similar and how are they different?

Poll

What review game do you want to play first tomorrow to review?

• Gimkit

• Kahoot

• Quizizz

• Socrative

Remember Review Games are
Live all Weekend Long

​Great job Today!

See You Tomorrow for the Quiz Review!