Magnetism المغناطيسية
Types of magnet are
1-Natural magnetطبيعى
* It is a black rock.
Or one of the iron ores which is known as “Magnetite”
2-Artificial (man-made) magnet: صناعى :It has different shapes and sizes.
Rectangular magnet - Horse-shoe magnet - Magnetic needle - Bar magnet - Ring (round magnet)
*magnetic materials : المواد المغناطيسية
They are the materials which are attracted to the magnet.
As Iron, nickel, steel and cobalt.
*non-magnetic materials : المواد الغير مغناطيسية
They are materials which are not attracted to the magnet
As: Chalk, glass, paper, aluminium, copper, wood, leather and plastic.
The properties of the magnet: خواص المغناطيس
* The magnet has two poles.
* The freely moving (suspended) magnet always takes a fixed
direction, which is north-south direction.
* The like (similar) magnetic poles repel each other, but the unlike (opposite) magnetic poles attract each other.
* The magnet is surrounded by an area called “Magnetic field”.
First: The magnet has two poles.
The magnetic pole. القطب المغناطيسى : it is The regions of magnet at which most of the magnetic materials are attracted.
Or The regions of magnet at which most of the attraction force is concentrated
second: The freely moving (suspended) magnet always takes a fixed direction, which is North-south direction.
The pole of magnet which points to the north direction is called “North Pole (N)
But which points to the south direction is called “south pole(S)”.
* Magnetic force disappears in the middle
* The North Pole usually red-colored but the South Pole is usually blue -colored
* the magnetic field المجال المغناطيسى :
It is the space around the magnet in which the effect of magnetic force appears.
The magnetic force is an invisible force which show the effect of magnet
The use of magnet : the compass البوصلة
• The structure of magnetic compass:
It consists of:
A light and small magnet that can spin freely around a fixed axis
• The importance of the magnetic compass:
It is used to identify the four geographical directions.
Types of magnet are
1-Natural magnetطبيعى
* It is a black rock.
Or one of the iron ores which is known as “Magnetite”
2-Artificial (man-made) magnet: صناعى :It has different shapes and sizes.
Rectangular magnet - Horse-shoe magnet - Magnetic needle - Bar magnet - Ring (round magnet)
*magnetic materials : المواد المغناطيسية
They are the materials which are attracted to the magnet.
As Iron, nickel, steel and cobalt.
*non-magnetic materials : المواد الغير مغناطيسية
They are materials which are not attracted to the magnet
As: Chalk, glass, paper, aluminium, copper, wood, leather and plastic.
The properties of the magnet: خواص المغناطيس
* The magnet has two poles.
* The freely moving (suspended) magnet always takes a fixed
direction, which is north-south direction.
* The like (similar) magnetic poles repel each other, but the unlike (opposite) magnetic poles attract each other.
* The magnet is surrounded by an area called “Magnetic field”.
First: The magnet has two poles.
The magnetic pole. القطب المغناطيسى : it is The regions of magnet at which most of the magnetic materials are attracted.
Or The regions of magnet at which most of the attraction force is concentrated
second: The freely moving (suspended) magnet always takes a fixed direction, which is North-south direction.
The pole of magnet which points to the north direction is called “North Pole (N)
But which points to the south direction is called “south pole(S)”.
* Magnetic force disappears in the middle
* The North Pole usually red-colored but the South Pole is usually blue -colored
* the magnetic field المجال المغناطيسى :
It is the space around the magnet in which the effect of magnetic force appears.
The magnetic force is an invisible force which show the effect of magnet
The use of magnet : the compass البوصلة
• The structure of magnetic compass:
It consists of:
A light and small magnet that can spin freely around a fixed axis
• The importance of the magnetic compass:
It is used to identify the four geographical directions.
