Vocabulary

  • amp

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    A unit of electric current is measured in amps (A).
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  • Atom

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    The smallest particle of an element.
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  • Conductor

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      A material that allows an electric current to flow through it.  Examples are penny, copper wire, paper clip and water.
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  • Electric current

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    A flow of electrons.
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  • electricity

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    Energy that is produced when electrons move from one place to another.
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  • Electron

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    A particle that has a negative charge and is found outside the nucleus of an atom.
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  • Insulator

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    A material that resists an electric current.  Examples are rubber, glass, cloth, and plastic.
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  • Load

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    A device that pulls an electric current from a power source.  In a circuit, a load can be a light bulb or an alarm.
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  • Open Circuit

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    A path that has a break in it to stop electric current from flowing.
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  • Open circuit/complete circuit

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    An unbroken path that an electric current follows.
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  • Parallel Circuit

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    A circuit that divides the current between two or more loads before returning to the power source.
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  • Series Circuit

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    A circuit with two or more loads connected in a line.  Electric current flows from one load to the next.
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Force and Motion Vocabulary

  • 1st Law of Motion

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    An object at rest wants to stay at rest.  An object in motion wants to stay in motion.
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  • Acceleration

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    A change in an object's speed or direction
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  • Force

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    A push or pull
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  • Friction

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    A force that slows motion and is caused by two things rubbing together.
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  • Inertia

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    The tendency of an object to keep doing whatever it's already doing.
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  • Isaac Newton

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    An English scientist and mathematician.  He discovered the three laws of motion and had ideas about how gravity works.
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  • Mass

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    The amount of matter of stuff that an object is made of.  Mass is measured in grams (g).  Mass is measured with a Balance.
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  • Motion

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    The act of moving, or a change in position.
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  • Speed

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    The distance traveled by an object over a given time period.
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