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Science Magnetism

QuestionAnswer
Magnetism a force of attraction or repulsion
Earth’s magnetic field comes from the inner core where iron, and nickel are found.
Magnets have the ability to attract items that are made of these three materials. Iron Nickel Cobalt
Magnetic fields the regions of a magnetic force around a magnet. Magnets have magnetic fields that are invisible.
Every magnet has a ______ and _______ ______ NORTH and SOUTH pole
If two of the same poles come together, the magnets will what? repel JUST LIKE ELECTRONS WITH THE SAME CHARGE!
If two opposite poles come together, the magnets will what? attract JUST LIKE ELECTRONS WITH OPPOSITE CHARGES
Why is Earth a natural magnet a natural magnet because the core is made of iron and nickel (which is magnetic)
Why does a compass point towards geographical North all of the time. It is attracted to the south magnetic pole.
Electromagnetism When an electric current passes through a wire, a magnetic field forms around the wire. The relationship between electricity and magnetism.
Electromagnets are temporary magnets because the magnetic field is only present when the current flows through them
The strength of the electromagnet can be increased by the following… Adding more turns of a wire around the iron core. Magnetic field Adding more batteries or more voltage. Current Using a thicker iron core. Creates more magnetic domains Using a thicker wire. (More current, larger magnetic field)
Solenoids a single wire wrapped into a cylindrical wire coil.
Once you open the circuit, the power source of a electromagnet the power source goes _____ OFF
Electromagnetic Induction occurs when an electric current is produced by moving a wire in a magnetic field.
what 3 other materials could be used to make an electromagnet? Iron Nickel Cobalt
Why are The paper clips attracted to the nail? When an electric current passes through a wire, a magnetic field forms around the wire. The paper clips then Are attracted to the nail because it is magnetic.
Created by: user-2019060
 

 



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