MAGNETISM
|
Students will understand that the attributes of magnets are utilized in our world to benefit society. |
VOCABULARY
attract - when objects are pulled toward each other by a magnetic force; unlike poles attract (north pole attracts a south pole) and like poles repel (north pole repels another north pole, and a south pole repels another south pole)
electromagnet - a magnet created by an electrical current; made by wrapping a wire around an iron core and connecting the wires to a power source to create an electrical current; this is a temporary magnet, because the magnetic field stops when the electricity stops
magnetic field - the area surrounding a magnet that exerts a push or pull effect on other magnets or magnetic objects made of certain kinds of metals: iron, cobalt, or nickel
magnetic force - the power of a magnet to push or pull on other magnets or magnetic objects
natural magnet - a magnet created by the earth called lodestone or magnetite; a kind of iron ore that can attract or repel other magnets or objects made of iron, cobalt, or nickel
permanent magnet - a magnet that doesn't lose its magnetic force
temporary magnet - a magnet that can lose its magnet force (for example, an electromagnet is a temporary magnet)
repel - when objects are pushed away from each other
electromagnet - a magnet created by an electrical current; made by wrapping a wire around an iron core and connecting the wires to a power source to create an electrical current; this is a temporary magnet, because the magnetic field stops when the electricity stops
magnetic field - the area surrounding a magnet that exerts a push or pull effect on other magnets or magnetic objects made of certain kinds of metals: iron, cobalt, or nickel
magnetic force - the power of a magnet to push or pull on other magnets or magnetic objects
natural magnet - a magnet created by the earth called lodestone or magnetite; a kind of iron ore that can attract or repel other magnets or objects made of iron, cobalt, or nickel
permanent magnet - a magnet that doesn't lose its magnetic force
temporary magnet - a magnet that can lose its magnet force (for example, an electromagnet is a temporary magnet)
repel - when objects are pushed away from each other
MAGNETISM
|
"Science Rules!" Bill Nye explains the basics of magnetism in this fast-paced video. You'll want to watch it over and over again!
|
|
Have you seen the "Northern Lights"? They are also known as the Aurora Borealis, and are created by the earth's magnetic field. You won't believe what's happening in the sky!
|
Video Coming Soon...
|