What is Magnetism?
Any material that attracts iron and materials that contain iron.
What is a magnet?
Where magnetic force is the strongest
What are poles?
Oersted’s experimental results showed that electricity and THIS are related.
What is magnetism?
A wire with a current has a
What is magnetic field?
What is an armature?
The direction a magnet will always point when allowed to swing freely.
What is North?
When the magnetic fields of two or more magnets overlap
What is a combined magnetic field?
A coil of wire with a current
What is a solenoid?
The energy associated with electric currents
What is electrical energy?
Three things needed to induce current
What are motion, magnet, and a conductor?
Opposite poles do this when placed closely together.
What is attract?
The needle in a compass
What is a magnet?
A solenoid with a ferromagnetic core
What is an electromagnet?
The energy an object has due to its movement or position
What is mechanical energy?
Current with charges that flow in one direction
What is a direct current?
Like poles places closely together will do this.
What is repel?
What the outer core is made up of
What is hot, swirling, liquid iron?
Wind coils closer together to do this
What is Increase the strength of an electromagnet?
A device that measures small currents.
What is a galvanometer?
Electrical pressure
What is voltage?
The ends of a magnet
What are magnetic poles?
The magnetic pole that is in the close, but not same location as the South geographic pole
What is the North magnetic pole?
Do this to turn a magnetic field produced by a current off.
What is turn the current off?
A device that uses an electric current to turn an axle.
What is an electric motor?
A device that increases or decreases voltage
What is a transformer?