Terminology
жасанды
ARTIFICIAL
Anything containing iron, cobalt, nickel and some alloys of iron oxide and attracted by magnet are called
magnetic materials.
If a magnet is held near some iron filings, they quickly stick to the ends of the magnet, because the ends of the magnet are very strongly attracting.
Therefore, these regions are called
poles of the magnet.
Magnetic field lines start at _____ and end at the ________.
North pole (N) / South pole (S)
Magnets which tend to stay magnetized for a long time are called
Permanent magnets.
уақытша / временный
TEMPORARY
Are human made magnets with different shapes and sizes.
Artificial magnets
The end of the magnet pointing towards the north is called the
north pole.
________is a device which indicates direction.
It has been used for thousands of years by travelers.
compass
Magnets do not lose their magnetism even if they are cut into pieces. If a magnet is divided into very small pieces, each piece______________
will become a magnet again.
тұрақты / постоянный
PERMANENT
Materials such as paper, plastic, glass, copper and so on that are not attracted by magnets are called
Non-magnetic materials
The other end pointing towards the south is called the
south pole.
The Earth’s magnetic field extends outside the atmosphere. The region of the Earth’s magnetic field is called the
magnetosphere.
Magnetic field lines never ________each other. They are shown with curved arrows.
cross
үгінділер / опилки
FILINGS
Which are found in nature are minerals that attract iron etc.
Natural magnets
If a bar magnet is suspended from its center by a string, it swings until it comes to rest pointing in the
north-south direction.
Magnets which lose their magnetism immediately are called
Temporary magnets.
A magnet is an object which attracts anything containing ________________________.
iron, cobalt, nickel and some alloys of iron oxide
магниттік өріс сызықтары
MAGNETIC FIELD LINES
According to theory, the magnetism of materials depends on ________inside them.
domains
Like poles ______ each other , unlike poles_______each other.
push/ pull
The reason why the earth produces magnetism is not exactly known. One theory states that the circulating metals in a molten state inside the earth's core cause __________. Hence, these __________ produce a magnetic field around the earth.
currents
Electric motors are devices that convert _____ energy into _____ energy.
electrical; mechanical