Changes in magnetism
To remove the magnetic properties from a magnet
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What is demagnetize?
Imaginary lines that show a magnetic field
What are the lines of force or field lines?
An instrument with a magnetized needle that points to magnetic north; used to determine direction
What is a Compass?
The magnetic pole located near the South Pole; also called the South Magnetic Pole
What is magnetic south?
To push away
To become magnetic; to make into a magnet
What is magnetize?
The space around a magnet where a force is noticeable
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What is the magnetic field?
A substance that attracts or pulls on other substances, especially those made of or including iron
What is a magnet?
The southern end of Earth’s axis
What is the South Pole?
A property of matter that creates forces that attract or repel certain substances
What is magnetism?
Dropping, hitting with a hammer or putting it on a flame
What are three ways to demagnetize a material?
The ends of a magnet where the magnetic field is strongest
What are the poles?
lights that are sometimes seen in the skies of the northern regions and are thought to be caused by the ejection of charged particles into the magnetic field of Earth
What are the Northern Lights or The Aurora Borealis?
For navigational purposes; the angle between the North Magnetic Pole and the actual geographic North Pole
What is magnetic variation?
The same poles; the poles of magnets that repel each other
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What are like poles?
These are the items needed to create an electromagnet.
What are a battery, a nail and some wire?
The magnetic pole located in the north about 800 miles from the North Pole; also known as the North Magnetic Pole
Anything that is not attracted to a magnet
What is non magnetic?
What is the Earth?
To draw or pull toward itself (e.g., a magnet attracts iron)
What is to attract?
The tendency of flowing electrons (electricity) to produce magnetic fields and the tendency of moving magnetic fields to cause electrons to flow
What is the electromagnetic Effect
Electromagnets are great because we can control what with them?
What is the magnitude or size of the magnetic field?
A device that creates a magnetic field made by connecting a coil of wire to an electric current
What is an electromagnet?
What is the direction of the magnetic field?
This protects life on Earth from the Sun's harmful radiation.
What is the magnetosphere?