Natural Magnets
Temporary Magnets
Electric Currents
Application of Magnets
Circuits
100
This term describes naturally occurring materials that produce a magnetic field responsible for pulling and pushing Ferromagnetic materials.
What are natural Magnets?
100
They are often used in cranes to lift massive loads and are created by either running electric current through a wire wrapped around metal or rubbing it against another strong magnet.
What are temporary magnets?
100
The amount of electricity flowing through a circuit.
What is an electric current?
100
This is important in industry and modern technology, and is the basis for many electrical and electromechanical devices such as: electromagnets, electric motors, generators, transformers, and magnetic storage.
What are some applications of magnets in industry
**Will accept application of magnets...
100
A complete circular path that electricity flows through.
What is a circuit?
200
A consequence of placing the South pole of one magnet against the South pole of another magnet
What is it to repulse like poles?
200
These lines never run in several directions in magnets and are never perpendicular.
What are magnetic field lines?
**Also will accept "What are field lines?"
200
Two things that are required to ensure electricity is flowing through a circuit.
What are a switch and a power source?
**Will also accept "A closed switch, battery, or plug/outlet?"
200
Is responsible for nearly all world navigation including the Global Positioning System.
What is a compass?
200
A circuit in which all elements (resistors, conductors, and power source) are arranged in a single path.
What is a series circuit?
300
The number of poles resulting from breaking a single bar magnet into 5 different pieces.
What are 10 poles?
because all magnets MUST have 2 poles; resulting in 5 pieces X 2 = 10
300
There are a set number of amperes per coulomb of electrons.
What is a single ampere per coulomb?
300
The direct of flow in electric currents.
What is from positive to negative (terminals)?
300
This imaging technology makes use of magnets to produce detailed images of almost every internal structure in the human body, including the organs, muscles, blood vessels (soft tissue) and bones (hard tissue).
What are MRI (Magnetic Resonance Imaging) Scanners?
300
A circuit when the electric current has multiple paths to flow through. Elements including resistors may be on separate paths as well.
What is a parallel circuit?
400
The successful arrangement of several pieces of a bar magnet into a continuous circle.
What is the creating of ring magnet with alternating North and South poles.
400
The number of turns of wire wound around a magnetic rod and the amount of current flowing through the wire.
What are qualities that dictate the strength of an electromagnet?
400
This is assumed if a bulb is lit and connected to a power source in a circuit.
What is completed with a closed switch?
400
Name this storage technology that is covered with a magnetic coating and stores data in the form of tracks, spots and sectors.
What is a floppy disk?
**Will also accept hard disk
400
A circuit that has qualities of both series and parallel circuits.
What is a complex circuit?
500
A body having a high susceptibility to magnetization is typically in iron and who's field lines are parallel magnetic alignment.
What is to be ferromagnetic?
500
Temporary magnets are most concerned with cooling their coils so they do not melt, and the structural stability of the material itself.
What are the two primary factors that limit the strength of electromagnets.
500
Name this rapid discharge of electricity caused when the insulating capacity of air breaks down and can no longer maintain opposite charges apart.
What is lightning?
500
A non-invasive procedure that uses magnetic fields to stimulate nerve cells in the brain to improve symptoms of major depression.
What is TMS (Transcranial magnetic stimulation)?
500
This company built the world's first microprocessor in 1971.
Who is Intel?