Electromagnetism Vocab

electric field

• The force of attraction or repulsion of magnetic materials

• The region around a charged object where the object’s electric force is exerted on other charged objects.

• Region surrounding a planet which contains charged particles controlled by the planet's magnetic field.

• An instrument for measuring the magnitude and the direction of a magnetic field

electric charge

• Any material that attracts iron and materials that contain iron.

• The force between charged objects.

• Material, energy, or information that goes into a system.

• A part of the shore that sticks out into the ocean.

static electricity

• The ends of a magnetic object, where the magnetic force is the strongest

• The electromagnetic spectrum is the complete range of wavelengths of the electromagnetic radiation.

• A buildup of charges on an object.

• An orbit which describes an ellipse or oval shape

friction

• The region around a magnet where the magnetic force is exerted.

• The molten mixture of rock-forming substances, gases, and water in the mantle.

• An instrument for measuring the magnitude and the direction of a magnetic field.

• The transfer of electrons from one uncharged object to another uncharged object by rubbing.

conduction

• Lines that map out the magnetic field around a magnet.

• A method of charging an object by allowing electrons to flow by direct contact from one object to another object.

• How bright a star appears without any correction made for its distance

• The main sequence of stars on the Hertzsprung-Russell diagram, containing about 90% of all known stars

induction

• Lines that map out the magnetic field around a magnet.

• The end of a magnet where the magnetic force is the strongest.

• How bright a star appears without any correction made for its distance

• A method of redistributing the charge on an object by means of the electric field of another object; the objects have no direct contact.

static discharge

• The angle between geographic north and true north.

• A piece of rock or dust in space with the potential to enter Earth's atmosphere and become a meteor or meteorite.

• A NASA satellite to study the cosmic microwave background that was launched in 2001.

• The loss of static electricity as electric charges transfer from one object to another.

electromagnetism

• A device with a magnetized needle that can spin freely and always points north.

• The ratio of the speed of a fluid to the speed of sound in that fluid.

• Region surrounding a planet which contains charged particles controlled by the planet's magnetic field.

• The relationship between electricity and magnetism.

magnetic force

• A force produced when magnetic poles interact.

• The release of electromagnetic radiation (e.g., light, X-rays, gamma rays) from excited atoms or molecules.

• A fundamental physical particle with negative charge. A component of atoms.

• A colorless and odorless gas that belongs to the alkane series of the hydrocarbons.

What is a generator?

• a machine that converts electrical energy into mechanical energy

• a source of energy that converts into kinetic energy

• a machine that converts mechanical energy into electrical energy