Define magnetism
Describe uses of magnetic materials
Describe how electromagnets work
Describe some applications of electromagnets
5-MINUTE MAGIC - 9:50
A magnet is a body that has a magnetic field. In nature, magnets are found in the form of pieces of stone - magnetic iron ore (magnetite). It is very similar to iron ore and is characterized in that it can attract other similar stones.
The properties of magnets are widely used in technology and in everyday life. Magnets lift heavy loads in factories, magnetic devices are used in hospitals for treatment and diagnosis, magnets help people navigate in space, with the help of neodymium magnets is audible sound in the handset and the dynamics of the tape recorder and TV, information in the computer and on plastic cards are recorded using magnetization.
The properties of magnets often seem almost magic. But they can be used not only for industry, but also for exciting experiments!
Introduction
By Discovery Channel (15:16)
The Dr. Binocs Show (3:15)
Smart Learning for All (6:03)
SciShow Kids (5:00)
FuseSchool - 3:03
Next Generation Science - 8:15
OneMonroe - 2:09
Stuff to Blow Your Mind - HowStuffWorks (4:45)
TED-Ed (4 min)
BioBush (6min)
Science Buddies (2:55)
Techquickie (5:49)
TED-Ed - 6:27
Physics Partner - 3:03