RIC-3531 Primary Science - Book D (Digital)
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Magnets<br />
magnets<br />
magnetise<br />
magnetic materials<br />
magnetic field<br />
magnetic force<br />
Samuel Morse<br />
morse code<br />
Magnetic Attraction<br />
Magnetic Strength<br />
Magnetic Forces<br />
Magnetic Problems<br />
Magnets<br />
The word ‘magnet’ is thought to have been first<br />
used by the Greeks around 600 BC. They used it to<br />
describe a mysterious rock that attracted iron and<br />
other metals.<br />
By using an electromagnet to move a pencil resting<br />
on a piece of paper, Samuel Morse sent the first<br />
messages over a long distance. Samuel later invented<br />
morse code.<br />
aluminium metals<br />
attract<br />
nickel<br />
attraction non-magnetic<br />
cobalt<br />
north<br />
field<br />
pole<br />
iron<br />
repel<br />
iron filings repulsion<br />
lines of force steel<br />
magnetic<br />
‘The Law of Magnetic Poles’<br />
©R.I.C. Publications<br />
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PRIMARY SCIENCE ~ R.I.C. Publications ® ~ www.ricpublications.com.au 61<br />
ISBN 978-1-925660-54-8
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