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Flashcards in Magnets Deck (11):
1

What are bar magnets?

Permanent magnets

2

What is a permanent magnet?

Their magnetism is there all the time and cannot be turned on or off

3

What are the two poles on a magnet called?

North Pole and South Pole

4

Name some magnetic materials

-cobalt
-iron
-nickel
-aluminium

5

What is a domain?

A little group of atoms in a magnet

6

Why doesn’t a normal piece of iron act like a magnet?

The domains are magnetised in different directions

7

How can you make a magnet?

By stroking a piece of iron in the same direction or you could also leave it next to another magnet for a while

8

Why does heating a magnet remove its magnetism?

When you are heating the magnet you are giving the atoms energy so they will move around and will not be aligned anymore

9

Why should you not drop magnets on the floor?

When it hits the floor the vibrations let some of the atoms move around a little inside the metal

10

Examples of non-magnetic materials

-wood
-plastic
-paper
-copper
-steel

11

What does attract mean when we are talking about magnets?

When the North Pole attracts to the South Pole