Magnetism
property of a material that describes its ability to exert a force on a magnet or a magnetic material.
magnetic
What is electricity?
flow of electric current
continuous flow of electrons
electric current
this is wrapped around a metal and electrified to become an electromagnet
wire
When an object has static electricity, charge builds up on the ______________ of an object
outside
When the north pole of one magnet meets the south pole of another magnet, they _______each other.
attract
Objects that conduct electricity easily
closed pathway that an electrical current follo
circuit
an electromagnet is
temporary
A balloon sticks to the wall because of what type of electrical charge.
negative
two regions in a magnetic field
magnetic poles
Objects that do not conduct electricity easily
Non-metals - like wood
supplies used to make circuit
batteries, wires lightbulb
turned on or turned off
A spark occurs when a positive charge meets a ____________ charge
negative
the strongest part of the magnet
the ends
Objects with like charges
repel
Typically a power source in a circuit
battery
an electromagnet is __________ powerful than a regular magnet
more
An example of static electricity in nature
lightning
Like electric charges, opposite poles of a magnet _________ each other.
Attract
attract
typically a conductor
wire
the strength of an electromagnet is affected by the voltage, the number of coils, and the _____________
type of core
a type of energy that creates static electricity by moving molecules
kinetic energy