1.2.8 Electromagnet

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.

​
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.

​

​Electromagnets combine the properties of Electricity & Magnetism

​We will be taking notes in our Notebook on page 18

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

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​First we build a pendulum!

​Now create the electromagnet

​Now let's Play & Test with the Electromagnet!

​Can you figure out how to create the STRONGEST electromagnet?

How many paperclips can you pick up?
or
How far can you be & still move the pendulum?

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.

​

​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 to review?

• Gimkit

• Kahoot

• Quizizz

• Socrative

Remember Review Games are
Live all Weekend Long

​Great job Today!

See You Monday for the Quiz!