Magnets: Making and Breaking Magnets

À propos de cette activité

Let's recap what we've learnt about making and breaking magnets!

Créé par

Emma Everitt

Singapore

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Compléter Magnets: Making and Breaking MagnetsVersion en ligne Let's recap what we've learnt about making and breaking magnets! par Emma Everitt 1 demagnetise test coils batteries 20 same magnetic temporary electromagnet magnetised STROKE wires Repeat increasing Coil Hitting iron greater pole pole attract separated naturally How can we a magnet ( make its lose its magnetic strength ) ? Methods to demagnetise a magnet : ? Heating ? / Hammering ? Dropping When a magnet is demagnetised , it will not be able to attract as many magnetic objects as before . How can we make magnets ? Some magnets exist in nature . ( Lodestones ) Some magnets can be made out of materials . When a magnetic object is made into a magnet , we say that it has been . Methods of making a magnet : ? Stroke Method ? Electrical Method THE METHOD Things needed : ? a magnet ? a magnetic object like an rod ? steel clips ( used to the magnetism of the rod ) Instructions : 1 ) Stroke the iron rod with one of the magnet 2 ) the stroking process at least times . 3 ) Make sure you keep using the same and in the direction . 4 ) Bring the iron rod near some steel clips . It will some steel clips if the iron rod has been magnetised . How can I make a stronger magnet using the Stroke Method ? ? The the number of strokes , the stronger the magnet . THE ELECTRICAL METHOD Things needed : ? a magnetic object like an iron nail ? an electrical wire ( about 10cm long ) ? one or two ? steel clips ( used to test the magnetism of the nail ) Instructions : 1 ) the electrical wire as many times as possible around the nail 2 ) Connect the ends of the to the battery / batteries . 3 ) Bring the iron nail near some steel clips . It will attract some steel clips if the iron nail has been magnetised . How can the magnet be made stronger ? ? increasing the number of of wire around the nail ? the number of batteries used A magnet made using the electrical method is called an . It is a magnet . Once the nail is from the wire , it is no longer a magnet .

Compléter

Magnets: Making and Breaking MagnetsVersion en ligne

Let's recap what we've learnt about making and breaking magnets!

demagnetise test coils batteries 20 same magnetic temporary electromagnet magnetised STROKE wires Repeat increasing Coil Hitting iron greater pole pole attract separated naturally

How can we a magnet ( make its lose its magnetic strength ) ?

Methods to demagnetise a magnet :
? Heating
? / Hammering
? Dropping

When a magnet is demagnetised , it will not be able to attract as many magnetic objects as before .

How can we make magnets ?

Some magnets exist in nature . ( Lodestones )

Some magnets can be made out of materials .

When a magnetic object is made into a magnet , we say that it has been .

Methods of making a magnet :
? Stroke Method
? Electrical Method

THE METHOD

Things needed :
? a magnet
? a magnetic object like an rod
? steel clips ( used to the magnetism of the rod )

Instructions :
1 ) Stroke the iron rod with one of the magnet
2 ) the stroking process at least times .
3 ) Make sure you keep using the same and in the direction .
4 ) Bring the iron rod near some steel clips . It will some steel clips if the iron rod has been magnetised .

How can I make a stronger magnet using the Stroke Method ?
? The the number of strokes , the stronger the magnet .

THE ELECTRICAL METHOD

Things needed :
? a magnetic object like an iron nail
? an electrical wire ( about 10cm long )
? one or two
? steel clips ( used to test the magnetism of the nail )

Instructions :
1 ) the electrical wire as many times as possible around the nail
2 ) Connect the ends of the to the battery / batteries .
3 ) Bring the iron nail near some steel clips . It will attract some steel clips if the iron nail has been magnetised .

How can the magnet be made stronger ?
? increasing the number of of wire around the nail
? the number of batteries used

A magnet made using the electrical method is called an . It is a magnet .

Once the nail is from the wire , it is no longer a magnet .

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Magnets: Making and Breaking Magnets

Compléter

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Créé par

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Magnets: Making and Breaking MagnetsVersion en ligne

par Emma Everitt

demagnetise test coils batteries 20 same magnetic temporary electromagnet magnetised STROKE wires Repeat increasing Coil Hitting iron greater pole pole attract separated naturally

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