How the Mobile Phone Works: Detailed description of the physics behind the functioning of a mobile phone.

Essay by sdixitHigh School, 11th gradeA+, July 2007

download word file, 7 pages ( 494 KB ) 2.7

Student Name: Sahil Dixit

Class: 11.06

Assessment Task No:1

Research Task

Date Due:


Weighting: 20%


Completed assignment to be submitted via CENet by the due date.


Mark: ____ / ____


Marker(s): _________________ Signature: _________________

Date: _________________


This is all my own work. I have referenced any work used from other sources and have not plagiarised the work of others.

Student Signature _____Sahil Dixit_______________________________

I have kept a copy of my task Y/N



The discovery of electricity and then the electromagnetic spectrum has led to the rapid increase in the number of communication devices throughout the twentieth century. This module increases students' understanding of the nature, practice, application and uses of physics and current issues, research and developments in physics.


The task involves writing a 750-1000 word explanation of the underlying physical principles involved in one particular technology and describing the impact that the technology has had on society.

Choose a topic area from one of the following

Global Positioning System

CD technology

DVD technology

The internet (digital process)


Any other technology of interest to you. (You must consult with your teacher before choosing a different technology) Mobile Phones

For your chosen topic area, identify relevant sources of data. Record references to this data in a bibliography.

Extract relevant information from multiple sources.

Keep copies of original sources of data

Highlight relevant information

Justify the importance of each piece of information

Present your explanation of the underlying physical principles that the technology depends on.

Describe some of the impacts that the technology has had on society.


You will be assessed on your ability to:

use relevant physics information and concepts

communicate effectively in writing utilizing headings and diagrams

present a logical, well structured answer to the question


Gather data from at least three different sources, one of which must be a print resource


P4. describes applications of physics which affect society or the environment

P7. describes the effects of energy transfers and energy transformations

P8. explains wave motions in terms of energy sources and the oscillations produced

P12. discusses the validity and reliability of data gathered from first-hand investigations and secondary sources

P13. identifies appropriate terminology and reporting styles to communicate information and understanding in physics

P14. draws valid conclusions from gathered data and information



Uses headings and diagrams to present a logical explanation of the physical principles and description of the impact of the technology on society.

Links the technology to the underlying physical principles

Articulates some of the key features of the impact of the technology on society

Uses appropriate physics terms and concepts

Uses a minimum of 3 resources, one of which being a print based resource.

Extracts relevant information from sources and references this information in accepted manner.


To be completed and submitted with the task


This is my best work

1 2 3 4 5

I was organized

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I understood the task

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I took notice of the rubric and /or marking guidelines

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I checked the meaning of the key words in the Glossary of terms (You will find them in the Green Terra Sancta Diary)

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Next time I will:

Start earlier.

Please complete the following section following return of the task:

I could improve the following skills in future by:


Method of Improvement


Start earlier

I would like to see further clarification or assistance with:

Student Name: Sahil Dixit

Student Signature: Sahil Dixit

Parent Signature:

Parent comment (optional):

It will inform the reader about how a mobile phone works, the history and development of mobile phones, the impact on health and society, and the future predictions about mobile phones.

History and Development:

A mobile phone is a radio- a really sophisticated radio- but a radio nonetheless.

The basis of a mobile phone had started off by a radio. This is because a phone uses a set line to send and receive a message or a call. But by using the concept of radios, the average radio has made the typical telephone into a cellular phone. The radio used to be, and still is, used as communication device in taxis and police cars, where one vehicle could communicate with another with no set line. With this concept, the mobile phone was developed.

Terra Sancta College - Assessment Task Notification � PAGE �8�