Magnets and magnetic materials
Presentation
•
Science, Physics
•
8th Grade
•
Medium
Roxana Nicolae
Used 31+ times
FREE Resource
9 Slides • 15 Questions
1
Magnets and magnetic materials
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What is this ?
A huge magnet!
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Open Ended
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Magnets
Magnets are useful!
They can be used to hold cupboard doors shut
They are used in electric motors
They are used in headphones and loudspeakers
They have fun uses - like magnetic letters!
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Permanent Magnets
Permanent magnets come in all shapes and sizes
They can be used to attract metal objects such as paperclips
A permanent magnet is one that stays magnetized for a long time (it doesn't stop being a magnet after it is used)
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Magnetic materials
Some materials are attracted by magnets, some are not
A material which is attracted by magnets is called a magnetic material
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Open Ended
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Magnetic metals
Iron is a magnetic material. Steel is mostly made of iron, so most types of steel are magnetic too
Nickel and cobalt are two other magnetic metals
Many strong magnets are made from a metal called neodymium
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Open Ended
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Aluminium and tin are non-magnetic metals
The picture shows how steel and aluminium cans can be separated using a powerful magnet
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Open Ended
Label the diagram (1-4) using the following words:
A: aluminium cans, B: electromagnet, C: steel and aluminium cans, D: steel cans
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Multiple Choice
A child puts two magnetic toy trains next to each other on a track. What will happen next.
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Multiple Choice
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Multiple Choice
A magnetic field is visible:
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Multiple Choice
Magnets are attracted to some materials. We say these materials are:
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Multiple Choice
19
Multiple Select
What would a magnet stick to?
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Multiple Choice
Silver and gold are attracted to magnets.
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Multiple Choice
Are all metals magnetic?
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Multiple Choice
Why will a magnet not attract pieces of paper?
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Multiple Select
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Multiple Select
Magnets and magnetic materials
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