MAGNETISM
______________-Refers to the properties and interactions of magnets in which there is a force of attraction or repulsion between like and unlike poles
The strength of force between two magnets depends on the ___________ between them
____________________-Exerts a force on other magnets and objects made of magnetic materials (strongest ________ to magnet)
All magnets have a north pole and south pole
LIKE POLES ________ UNLIKE POLES ________
MAGNETIC MATERIALS
Only a few items such as ______, ________, and _________ are attracted to magnets or can be made into permanent magnets
__________________-Group of atoms with aligned magnetic poles (too small to be seen with eye)
__________________-Made by producing a magnetic material in a strong magnetic field, forcing magnetic domains to line up
MAGNETISM AND ELECTRICITY
When ________________ flows through a wire, a magnetic field forms _________ the wire
Strength of magnetic field __________ on the amount of current flowing through the wire
MAGNETISM
A __________ magnet made by wrapping a wire coil carrying a current around an iron core
__________________ of the magnetic field by adding more turns to wire coil (__________) or ______________________________ passing through the wire