Magnetism
What is magnetism?
Magnetism attracts iron and metal by using magnets
What is a magnetic field?
A magnetic field is created by the attraction of magnets together.
What is electromagnetism?
It is when electric currents interact with magnetic fields.
What are electromagnets and solenoids?
Electromagnet- a metal into a magnet creating electric current through coil.
Solenoid- a cylinder type of wire that preforms just like a magnet creating electric current.
What is the right hand rule?
The right hand rule is when you use your right hand on some type of magnet or coil of wire to help you determine the magnetic field and current of it.
If you have two magnets and they do not have N and S marked on them how can you find out which is which?
You put the magnets together until they repel and and you will then find if they repel they are the same and if they attract they are oppsite
poles
What can make a magnet lose it magnetism?
High temperature
What are the lines you get on the gizmo lab when you put it around the magnets?
Magnet field lines
What is the direction of the current when you have a circle with a dot in the middle?
coming towards you out of the paper
Do magnets stick to wood and iron?
Iron yes but wood no.
Do magnetic field lines cross
No
When electrons move they create _____
magnetic fields
When two magnets of the same are brought together they will_____
repel
What is the direction of the magnetic field when you ave a circle with a dot in the middle?
clockwise
Magnets have a north and south ____
Pole
What is a device with a needle used to find direction?
Compass
What magnet can turn on and back off
electromagnet
What could make an electromagnet weaker
remove the object from the coil
What is the direction of the current of a coil of wire going from S to N and + to -?
Left to right
The force of magnetism strongest when they are ____
Closer together
Why does a compass act the way it is?
It is magnetized by a magnet
What are two types of magnets
ferromagnetic, and electromagnet
How can you make an electromagnet stronger?
adding more coils to the wire
What is the direction of the magnetic field of a coil of wire going from S to N and + to -?
Left: South
Right: North