Magnetism
Every magnet, regardless of its shape, has two of these.
What are magnetic poles
On a bar magnet, these spread out from one pole and curve around another.
What is a magnetic field?
The build up of charges on an object is called this.
What is static electricity?
An electric current produces this.
What is a magnetic field?
The type of current produced by a battery is this.
What is DC or direct current?
Magnetic poles that are alike do this to each other.
What is repel?
This device can be used to determine the direction of the magnetic fields.
What is a compass?
This is what you produce if you touch a metal doorknob after walking across wool carpet.
What is static discharge?
This type of magnet can be turned off and on.
What is an electromagnet?
When you move a wire up and down repeatedly in a magnetic field, you produce this type of current.
What is AC or alternating current?
This material is perhaps the most attracted to magnets.
What is iron?
This is the largest magnet we know of.
What is the Earth?
This law of nature states that charges are neither created nor destroyed.
What is the law of conservation of charge
Increasing the number of loops in a solenoid would do this.
What is cause the strength of its magnetic field to increase?
A step up transformer is a transformer that increases this.
What is voltage?
A magnetic pole is the part of the magnet where the magnetic effect is this.
What is the strongest?
This is the angle between the magnetic north and geographic north.
What is magnetic declination?
When you rub something (like a balloon) onto something else (like cloth) this is being transferred.
What are electrons?
You can increase the strength of an electromagnet by doing this.
What is using ferromagnetic material (a magnet instead of just metal)
Electric current from a generating plant produces AC current at what voltages and is transferred to this voltage?
What is high voltages and stepped down to 240 volts.
This type of train floats above the rail due to magnetism.
What is maglev?
About how far has the average speed of the magnetic pole moved from 1948 to 2001?
What is about 16 km/yr?
This is a type of charge that happens without two objects touching each other.
What is induction?
This is the name of the scientist who discovered electromagnetism.
Who is Oersted?
A DC generator is like an AC generator, except that is contains this instead of slip rings.
What is a commutator?