Flashcards
Magnetism
Flashcards do conjunto (11)
- 1The two magnetic polesNorth and south
- 2The three principal magnetic metalsIron, Nickel and Cobalt.
Extra: sometimes steel as it is mixed with iron. - 3How can non-magnetic metals be made magneticBy making all the electrons face the same way
- 4What do two poles that are the same do when they are brought together?Repel
- 5What do two unlike poles do when they are put close together?Attract
- 6Two ways in which you can increase the strength of an electromagnet?By increasing the voltage and the amount of coils around it
- 7What is good about electromagnets?That you can control them. Make them magnetic and non-magnetic when you want.
- 8One way an electromagnet can be used and why is it useful?In a scrap heap magnet to separate the magnetic and non-magnetic metals into two.
- 9One piece of evidence to prove that earth acts like a giant magnet.It has North and South and has a melted liquid core which contains iron (magnetic metal).
- 10What happens if a magnet is cut in half?The only difference is that it's made smaller but it will still have a north and a south
- 11Will a magnetised metal last long being magnetic if it has been made magnetic by another metal?It depends if the person has been rubbing the magnet for a long time and IN THE SAME DIRECTION all the time but it will probably not last long as the atoms will go back to their original position
Informações
- Descrição
- Flash cards on magnetism! Useful! Enjoy!
- Criado por
- Usuário eliminado · mai 2018
- Atualizado
- 10 mai 2018
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- Criado por joan.march · 19 mai 2014
- Copiado por PAK LAM WONG · 10 mai 2018
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