Magnets
Vocabulary
Magnetic Earth
Electric Current
Electromagnets
100
2,000 years ago. Magnesia Greece
What is the date and place magnets came from?
100
Angle between geographic north and the north to which a compass needle points
What is magnetic declination
100
Earth is like a magnet because it has magnetic field and has a north magnetic pole and a south magnetic pole.
What makes Earth like a magnet?
100
Conductors allow charge to flow through it. Insulator does not allow charge to pass. Wood, plastic, and paper.
What is the difference between a conductor and an insulator? Give examples.
100
Creates a magnetic field that can be turned on and off by switching the current on and off.
What does a solenoid do?
200
Repel and attract.
What is the interactions between a north and north pole and a south and north pole
200
region shaped by the solar wind?
What is magnetosphere?
200
A glowing region caused by charged particles from the sun because they get close to the earth's surface and interact with the atoms.
What is aurora?
200
they allow electric charges to flow.
What does electric circuits do?
200
A strong magnet that can be turned on and off.
What is electromagnet?
300
an atom with a nucleus, protons, and electrons.
What is inside a magnet?
300
Flow of charge through a material.
What is Electric current?
300
Destroying - dropping the, or heating them up. Making - rubbing together, or splitting one in half
What is a few ways you can destroy or make magnets?
300
Hans Christian Oersted
What is the name of the man who discovered magnetism and electricity are related?
300
Increase it by adding more loops of wire around the solenoid.
What is a way you can increase the strength of an electromagnet?
400
When billions of clusters of atoms align with one another in the same way.
What is magnetic domains?
400
A device in an electric circuit that uses electrical energy as it interferes with the flow of electric charge.
What is a resistor?
400
When rocks are in a molten state, free to move. They are attracted to the field and become aligned. Once cooled lock in place.
What evidence of changes in Earth's magnetic fields is found in rocks?
400
Thomas Edison
What is the name of the man who invented the light bulb?
400
The disk has a metal powder on it and it will be attracted to the magnet.
What is a reason why a magnet will alter an disk?
500
Ferromagnetic material placed in a strong magnetic field or by rubbing together.
What is the way magnets are made?
500
current carrying coil of wire with many loops
What is a solenoid?
500
Sir William Gilbert in 1500's
What is the name of the guy who discovered earth is a magnet?
500
A solenoid can be turned on and off. Bar magnet can't.
What is the difference between a solenoid and a bar magnet?
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