Vocab Fill in the blank? Devices
100
What is magnetism?
A natural force of attraction or repulsion or magnetic materials caused by the lining up of their atoms.
100
Attract
Opposite magnetic poles ________ each other.
100
What is a magnet?
Something that can attract iron and has an invisible magnetic field around it
200
What are poles?
The opposite ends of an object; they are the strongest areas of a magnet.
200
Poles
At the _______ the field of a magnet is the strongest.
200
What is a compass?
An instrument that uses magnets and the Earths magnetic poles; used to determine direction.
300
What is a magnetic domain?
A group of atoms in a material that behaves like a small magnet. In
300
Increases
Placing an iron bar in a solenoid ___________ the magnetic field strength
300
What is a galvanometer?
A device used to measure current.
400
What is an electric motor?
Converts electric energy into mechanical energy.
400
Ferromagnetic.
Iron,cobalt and nickel are _________ materials.
400
What is a generator?
An object that converts mechanical energy into electrical energy.
500
What are ferromagnetic objects?
Objects with magnetic qualities due to their content.
500
Lodestone
A ___________ is a naturally occurring permanent magnetic rock.
500
What is a solenoid?
A current-carrying coil of wire that acts like a magnet when a current passes through it.






Magnetism

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