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100

Magnetism

property of some materials that allows them to give off an attractive or repulsive force.

100

Electric motor

device that uses an electromagnet to convert electrical energy into mechanical energy.

100

Describe the force that exists between magnetic objects. Include where it is the strongest, and how this force acts similarly to other forces we’ve learned about.

-Force between magnetic objects is the magnetic field.

-It is strongest at the poles.

-It is similar to electrical force in that opposites attract and like repel.

-It is similar to gravitational force in that the closer you are to it, the stronger it feels.

200

Magnet

a material that gives off an external magnetic field, making it possible to apply a force over a distance.

200

Generator

device that uses an electromagnet to convert mechanical energy into electrical energy.

200

Explain the relationship between magnetic fields and magnetic force.

-Magnetic fields are the external forces given off by magnets. They make it possible to apply a force over a distance.

300

Magnetic field

external force given off by a magnet; strongest at the poles.

300

Differentiate between the magnetic domains on magnetic elements vs. non-magnetic elements.

-Magnetic elements have aligned magnetic domains, nonmagnetic do not.

400

Ferromagnetism

phenomenon where objects placed in a strong magnetic field become magnetized due to the poles within their atoms aligning (all e- in same direction).

400

Explain the relationship between electricity and magnetism.

-Electrical current can produce a magnetic field, counterclockwise from the direction the current is traveling.

500

Electromagnet

temporary magnet made by placing a piece of iron inside a current carrying coil of wire.

500

List the two ways to increase the strength of an electromagnet.

-Increase the number of loops.

-Increase the strength of the current.