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Motion and Forces

Unit 3, Lesson 1-5

TermDefinition
Electric Charge A fundamental property that leads to the electromagnetic interactions among particles that make up matter.
Static Electricity Electric charge at rest; produced by friction or induction.
Electrical Conductor A material in which charges can move freely.
Electrical Insulator A material in which charges cannot move freely.
Semicondictor An element or compound that conducts electric current better than an insulator does but not as well as a conductor does.
Electric Current The rate at which electric charges pass a given point.
Resistance In physical science, the opposition presented to the current by a material or device.
Voltage The amount of work to move a unit electric charge between two points; expressed in volts.
Electric Circuit A set of electrical components connected such that they provide one or more complete paths for the movement of charges.
Series Circuit a circuit in which the parts are joined one after another such that the current in each part is the same.
Parallel Circuit The energy that an object has because of the position, condition, or chemical composition of the object.
Magnet Any material that attracts iron or materials containing iron .
Magnetic Pole One of two points, such as the ends of a magnet, that have opposing magnetic qualities.
Magnetic Force The force of attraction or repulsion generated by moving or spinning electric charges.
Magnetic Field A region where a magnetic force can be detected.
Electromagnetism The interaction between electricity and magnetism.
Electromagnetic A coil that has a soft iron core and that acts as a magnet when an electric current is in the coil.
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