Magnetism

Are you a magnet? Because I think I am attracted to you.

-Mr Alan's Cringe -

Magnetism

Last Week's Recap

Multiple Choice

The magnetic field flows from ...

• north to south.

• south to north.

• east to west.

• here to there.

Multiple Choice

The magnetic field is the area around the magnet where it pulls or pushes objects.

• True

• False

Drag and Drop

The following poles repel each other​

Placeholder

​

Placeholder

​

Drag these tiles and drop them in the correct blank above

North to North

South to South

South to North

East to West.

Drag and Drop

The following poles attract each other​

Placeholder

​

Placeholder

​

Drag these tiles and drop them in the correct blank above

North to South

South to South

South to North

East to West.

Draw

Draw the magnetic field of the magnet shown. Include the arrows to show the flow of the magnetic field.

Word Cloud

How would you describe this topic?

Word Cloud

What is the strongest magnet in the world?

We have the North and South pole that directs our compasses.
We have a magnetic field that governs the movement of the sky, land and seas

The Earth is a Magnet

Open Ended

Why is the Earth's magnetic field important?

Why is the Earth magnetic?

It's probably due to the magnetic core.

The core of the Earth is made out of molten and solid iron and nickel, both being magnetic metals. The constant movement of the core probably creates the magnetic field of the planet.

Electromagnets - Creating Magnets

Magnetize, Magnetic

No, they are not Pokemon names.

Most metals are magnetic - they are attracted to a magnet.

These metals are also able to be magnetized - we can make them temporary magnets

Multiple Select

What items do we need to create a temporary magnet?

• A magnet

• A metal

• Dark Magic

• Big Brain Energy

Electromagnets - A magnet created by electricity

Multiple Select

What items do we need an electromagnet?

• An electrical source

• Wire coils

• A metal

• Alien technology

Word Cloud

Homework: Find out five uses of electromagnets from the internet.

How do we increase the strength of an electromagnet?

There are three ways we can make an electromagnet stronger:
1. Increase the current.
2. Increase the number of coils around the metal core.
3. Use a soft metal core.

Dropdown

When we add more batteries, the electromagnet becomes​

Select answer

Drag and Drop

The more coils there are around the wire, the weaker the electromagnet.​

Placeholder

Drag these tiles and drop them in the correct blank above

False

True

Maybe

Eh?

Open Ended

Look at your textbook, dictionary and internet. What is a soft metal core? Explain in your own words.

Open Ended

Jackson and Peter are making electromagnets. Peter is certain he will win with his electromagnet. He uses two AA batteries and makes 25 turns around his metal core.

Jackson intends to build a stronger electromagnet. How should he do it?

Homework!

Go home and read more about making an electromagnets.

In your Science groups, discuss on making a strong electromagnet.

We will have an electromagnet building battle on Friday.

More Homework?

Oh, and don't forget to do 9.4A and B on your workbook.