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Unit 3 Vocabulary

electric charge A property that leads to electromagnetic interactions between the particles that make up matter.
static electricity The build up of electric charge on an object.
electrical conductor A material through which charges can move freely.
electrical insulator A material through which charges cannot move easily.
semiconductors A special class of materials that conduct electric charge better than electrical insulators but not as well as electrical conductors.
Electric current The rate of flow of electric charges.
voltage The amount of work required to move each unit of charge between two points.
resistance The opposition to the flow of electric charge.
electric circuit A complete,closed path through which electric charges can flow.
series circuit All parts are connected in a row that forms one path for the electric charges to follow.
parallel circuit Electric charges have more than one path that they can follow.
magnet Any material that attracts iron or any object made of iron.
magnetic force When a magnet exerts a push or a pull on each other.
magnetic poles Two magnets that can push each other apart because of their ends.
magnetic field The area surrounding a magnet where magnetic forces can be detected.
electromagnetism Happens when electric currents and magnetic fields interact with each other.
solenoid A coil of wire that carries an electric currant, and therefore produces a magnetic field.
electromagnet Wrapping a solenoid around an iron core makes this.
electric motor Changes electrical energy into mechanical energy.
electromagnetic induction Uses a magnetic field to create an electric current in a wire.
transformer Uses induction to increase or decrease the voltage of alternating current.
electric generator Uses induction to to change mechanical energy into electrical energy.
electronic device Able to control the flow of electrons using integrated circuits.
integrated circuit A single, tiny chip of specially treated silicon containing many circuit parts.
analog signal Signals that can change continuously in a given range.
digital signal A sequence of separate values.
computer Any electronic device that performs tasks by following instructions given to it.
Created by: 18mcdonoughm0317