Magnets 101
More on Magnets
Vocabulary
Vocabulary Too
Electromagnets and More
100
The north pole of one magnet will be attracted to the ________ _________.
What is South Pole
100
Which instrument is used to trace the direction of a magnetic field?
compass
100
an area of a magnet where the magnetic force appears to be the strongest
What is the magnetic pole
100
a microscopic magnetic region composed of a group of atoms whose magnetic fields are aligned in a common direction
What is a domain
100
The strenght of an electomagnet can be increased by....
Increasing voltage or increasing coils on the solenoid
200
T/F: The magnetism of a piece of magnetized iron can be weakened by heating it up or bending it.
False
200
What material was used to make the first compass?
lodestones
200
a region where a magnetic force can be detected
What is a magnetic field
200
a device that converts electrical energy into mechanical energy
What is an electric motor
200
An electric motor and generator are similar in what way?
they transform energy into a different form
300
The electric field of a magnet moves out from the ______ pole.
North
300
Magnetic fields are produced by______________.
electric currents
300
a long wound coil of insulated wire
What is a solenoid
300
the production of a current in a conducting circuit by a change in the strength, position, or orientation of an external magnetic field
What is electromagnetic induction
300
How do generators differ from electric motors?
Generator converts from mechanical to electric energy Electric Motor converts from electric energy to mechanical energy
400
The RIGHT HAND RULE is how you determine what?
The North pole of an electro magnet
400
What causes the magnetic properties of bar magnets?
The material that it is composed of
400
a strong magnet created where an iron core is inserted into the center of a current-carrying solenoid
What is an electromagnet
400
a device that uses electromagnetic induction to convert mechanical energy to electrical energy
What is a generator
400
Compare and contrast earths magnetic poles with its geographic ones
The actual points are slightly different and Antartica is actuallly the north pole and the north pole geographically is actually the south pole
500
Explain how the RIGHT HAND RULE WORKS
You align your fingers with the direction of the coils and your thumb points north
500
How are electric and magnetic field waves orientated relative to each other in an electromagnetic wave?
at 90 degree angles relative to each other
500
an instrument that measures the amount of current in a circuit
What is a galvonometer
500
a device that can change one alternating current voltage to a different alternating current voltage
What is a transformers
500
What is one Mr. Iacch's calendar?
Tree Houses
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