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Objective: To identify whether positive, negative, or zero work is being done, to identify the force that is doing the work, and to describe the energy transformation associated with such work.

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Communicating With Waves

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Understand the mechanics and properties of the electromagnetic wave produced by a cell phone antenna.

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Compare and contrast digital and analog storage of information on a storage medium.

An NGSS-Inspired Activity

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Storing Information

Understand how information in cell phone communication is digitally encoded.

Sending Electromagnetic Waves

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Activity 1: Sending EM Waves A cell phone antenna sends a signal by ‘wiggling’ tiny electrons within it. This motion of a charged particle creates both a changing electric field and a changing magnetic field that travels throughout space. This is known as an electromagnetic wave.

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https://www.physicsclassroom.com/

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Physics-Interactives/Static-Electricity/

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Name-That-Charge/

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Sending EM Waves,Encoding Information, Storing Information

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