Magnetic Information Flashcards
Information about magnets!
Who discovered magnets through a rock called a “lodestone?”
Ancient Greeks
An Example of a permanent magnet. It is found in nature.
Magnetite
Can magnetism be observed?
Yes
What metals are magnets attracted to?
iron, steel, nickel, and more.
How do you magnetize a paper clip or a horseshoe?
Expose it to a magnetic field.
LIKE or UNLIKE poles attract (pull) each other?
Unlike
Like or Unlike poles repel (push) each other?
Like
Where do we use magnets?
MRI scans, magnetic toys, cow magnets, credit cares, cassette tapes, compasses, Magnetic Levitation Train, letter magnets and televisions.
What does an electromagnet need to act like a magnet?
An electrical current flowing through it.
What kind of magnet is an electromagnet?
Temporary magnet
Where are electromagnets found?
Anything with a motor, computer speakers, computer heard drive, microwave stirring fans, dishwasher (pump and timer), garage door opener, clock, clothes dryer (timer), and ceiling fan.
What is at the geographic North and South poles?
A north and south magnetic field!
What kind of force attracts magnetic material?
magnetic force
Can magnetism pass through air?
Yes
Can magnetism pass through water?
Yes
