Magnetism
Vocabulary Words
magnet: any material that attracts iron
poles: the part(s) of a magnet where the force is the strongest
magnetic field: the space (area) that a magnet has an effect in
electromagnetism: when electricity and magnetism collide , the relationship
between electricity and magnetism
solenoid: a coil of wire; it creates a magnetic field when you run electricity
through it
domain: a grouping of atoms all facing the same direction
magnetic force: the force of attraction or repulsion between the poles of two
magnets; whether the force is pulling together or pushing apart
temporary magnet: a magnet that is made by forcing the domains of a
substance to be “aligned” (facing in the same direction); the magnetic force of
temporary magnets is easily lost but is pretty easy to create
permanent magnet: a magnet that is made of materials with naturally aligning
domains; these are difficult to make, but they keep their magnetic force for a
long time
electromagnet: a magnet that is made from a solenoid wrapped around iron,
with wires attaching it to a power source; because it only works when the
electricity is turned on, we can control the power of electromagnets
generator: a machine that converts mechanical energy into electrical energy
electromagnetic induction: this is when you create electrical current by using
a magnetic field that changes (flips upside down, or spins)
electrical motor: a machine that converts electrical energy into mechanical
(kinetic) energy
generator: a machine that converts mechanical (kinetic) energy into electrical
energy