Magnets!Magnets!

Science SOL 2.2Science SOL 2.2Created by cmy@2008Created by cmy@2008

What are Magnets?What are Magnets?

What are magnets?What are magnets?

• Force that can push or pull things

What attracts a magnet?What attracts a magnet?

• Certain metals like iron or nickel or cobalt

• Lodestone or magnetite

How can you make a magnet?How can you make a magnet?

• Use a strong magnet

• Rub against something like a needle or pin many times

What are poles?What are poles?

• Every magnet has a pole

• North

• South

• Ends of magnets

Attract and RepelAttract and Repel

Attract and RepelAttract and Repel

• Like poles repel

• Unlike poles attract

How does a compass work?How does a compass work?

• Poles line up with the Earth’s poles

• Magnetized needle will point north

• Experiment: bowl of water, cap, magnetized needle

How do we use magnets?How do we use magnets?

• Help us do work• Pick up things that

drop• Hold notes• Hold metal objects

• Compass• Motors

(electromagnet)• Telephones• Toys