APPLIED TECHNOLOGY & ENGINEERING Postcard …...Radio, television and mobile phones, all use electromagnetic waves to transmit information. Each form of communi-cation uses a different

1

APPLIED TECHNOLOGY & ENGINEERING

Name: ______________________________________

Date: __________________ Grade: ____ Section: ___

Postcard Radio Project

2

DESIGN CHALLENGEDESIGN CHALLENGE

>> Design and build a simple radio that will receive an AM signal through the air without electricity>> Design and build a simple radio that will receive an AM signal through the air without electricity

Criteria Constraints

Your radio must have...• A completed circuit board• 8 meters of antenna wire• An earpiece• An attractive case or housing to hold all the parts

Your case must stay within these measurements: Maximum length: 10 cm (front to back) Maximum width: 18 cm (side to side) Maximum height: 10 cm (top to bottom)

Approved Materials Key Points

• 1 circuit board• 1 earpiece• 8 meters of wire • 1metal tuning plate• 2 covers for front and rear of radio• 4 alligator clips• Wood• Paper clips• Plastic

NOTE: Keep track of and safeguard all materials. Points will be lost if replacement parts are needed.

• Electromagnetic (EM) radiation is pretty much all around us.

• When you listen to an AM or FM radio station, the sound that you hear is transmitted to your radio by the station using EM radiation as a carrier—radio waves.

• Crystal radios pick up AM radio without batteries or electricity. The broadcast station puts out enough power in the form of a radio signal. The c r y s t a l r a d i o a n t e n n a c a p t u r e s t h i s electromagnetic energy, and the signal then passes through the crystal detector and converts the signal back into sound using a diode.



Key Terms



Electromagnetic waves – energy that can travel through air, solid materials and empty space.

Diode- an electronic part that allows current or waves to flow in one direction only.

Wavelength- the distance between peaks of electromagnetic waves.

Frequency- how often a wave peak goes by. Amplitude- the measure of something's size Decoder- separates the sound wave from the rest of

the radio wave. Transmitter-an electronic device that broadcasts

radio waves or signals

Class CompetitionClass Competition

Each radio will be rated as follows: 1 – No Signal: you can’t hear any signal at all 2 –Inaudible Sound: you can barely hear a signal, but can’t make out any words 3 – Weak Signal: you can hear a few words here and there, but nothing that makes sense 4 – Medium Signal: you can hear most words, but it still sounds scratchy 5 – Strong Signal: you can clearly hear words or songs

Each radio will be rated as follows: 1 – No Signal: you can’t hear any signal at all 2 –Inaudible Sound: you can barely hear a signal, but can’t make out any words 3 – Weak Signal: you can hear a few words here and there, but nothing that makes sense 4 – Medium Signal: you can hear most words, but it still sounds scratchy 5 – Strong Signal: you can clearly hear words or songs


3

RESEARCH

770-0115 12.03.03

The radio was steadily becoming the focus of family entertainment in the home, taking over from the gramophone.Families would gather to listen to popular shows and organise their evenings around these broadcasts. News itemsand special events could now be broadcast live to millions of listeners around the world.

Transistor radiosThe transistor was invented in 1947, at Bell Telephone Laboratories. It was smaller, used less electricity and operated more reliably than valves.

The Regency TR-1 was the first transistor radio available in 1954 costingaround £30.

The development of transistor radios changed the way music could be listenedto. Transistors made radios smaller and as a result more portable and affordable. Young listeners began to buy the new transistor radios to listen totheir own music.

The transistor radio transformed the social use of radio. Sets were now inexpensive and highly portable. Radios were no longer a piece of furniture buta personal item that could be carried everywhere, and as a result the demandfor radios increased.

IC based radiosIn 1958 the integrated circuit was developed by Texas Instruments. It was now possible to place all

the components of an electronic circuit on a small piece of silicon.

The use of small ICs has allowed the design of radios to change dramatically. The design of the case is no longerdefined by the circuit it contains. This has allowed designers to develop a whole new range of novel andinteresting shapes to contain radios.

The development of IC manufacturing has resulted in surface mounted ICs and ‘Chip onboard’ constructed radios that have allowed the size of radios to shrink even more.

The diagram on the right shows a mini radio that sells for a few pounds and fits onto a key ring!

Future of radioThe 21st Century has seen the introduction of digital radio.Analogue radio signals frequently suffer from interference and distortion. Digital radio signals do not suffer from interference.

With digital radio all the transmitters use the same frequency. Thismeans you do not have to re-tune as you move location.

A digital signal can also carry several radio programmes and data simultaneously, allowing you to see text and pictures with your radio programme.

Tasks – 1. Draw a time line using pictures and words to show the main points in the history of radio.

2. The technology in radio design is improving all the time and as a result the design of radios is getting smaller. Using modelling foam sculpt a fun shaped radio that could be carried as a piece ofadornment. Sketch out your designs first and then model your designs. Do not forget to paint them.

3. Write a short piece about how the Internet is changing the way we listen to music.

4

470-0115 12.03.03

How it worksGuglielmo Marconi, was the first person to show that invisible radio waves could be used for communication betweentwo places without wires.

Radio waves are part of a wider spectrum of electromagnetic waves. Light is part of this spectrum.The difference between the two is the frequency at which they vibrate. Light has a higher frequencythan radio waves.

Radio, television and mobile phones, all use electromagnetic waves to transmit information. Each form of communi-cation uses a different frequency to transmit the information. By using a different frequency for each we are able toseparate them.

Transmitting RadioAt the transmitter, the signal from the microphone is first amplified. It is then combined with a radio carrier wave,this is called modulation. The modulated signal is then further amplified and transmitted from the aerial.

Receiving RadioSince we are surrounded by many radio signals, the first task for the radio receiver is to select a particular stationfrom all the others. This is done through the tuning section of the circuit.

The tuner circuit is designed to respond to one particular frequency and ignore all others.By altering the value of the capacitor in the tuning circuit, you change the frequency the circuit responds to and thus change the radio station received.

The tuner section of the circuit causes the radio to receive one of the many radio signals. Now the radio has to extractthe voice or music from the carrier wave. This is done with part of the radio called a demodulator. Demodulationremoves the original sound wave from the carrier wave.

Since the sound is very weak it needs amplification so that we can hear it. The final signal is then fed to a speakerwhere the original voice or music can be heard again.

If you look at a radio you will see that there are usually two types of radio signal that it can receive, AM and FM.

AM (amplitude modulated) FM (frequency modulated)

Amplitude modulation (AM)AM is easier to transmit, but can be affected by electrical interference from devices like a switch. Tall buildings orhills also affect AM radio reception.

Frequency modulation (FM)The FM wave is more difficult to transmit, but it does not suffer interference as much. FM carrier waves are higherin frequency than AM.

The diagram above shows the radio circuit used in the project. The ferrite rod and variable capacitor are to tune thecircuit to the desired radio station. The MK484 demodulates the signal and the BC548 transistor amplifies the out-put to the headphones.

Tasks – 1. Why do you think the use of radio waves to broadcast is very closely controlled?

2. Find out the frequencies that the following devices operate on:a) Microwave ovensb) Police Radios c) Radio controlled modelsd) Mobile phones

3. List your five favourite radio stations and the frequencies they transmit on.

570-0115 12.03.03

MK484 BC548BTransistor

270R

100K

0.1uF

0.1uF

100K

150pF

Ferrite Rod & Coil

0.01uF

1K

47uF

1K

+

Headphones32 Ohms

Input

Ground

Output

C1

R1

R2

R3IC1

R4

R5

C5

C4

C3

TR1c

b

e

1.5VBattery

+

TUNING DEMODULATION AMPLIFICATION

C6

SW1

5

1170-0115 12.03.03

Case designThere are a variety of methods of containing your electronic products. The choice depends on your design requirements.

Vacuum forming is an ideal method for creating cases to hold your electronic products. High impact Polystyrene orABS make good case moulding material. The first stage is to design and make a mould.

There are a number of important features that need to be included to make a good mould design:

1. The mould sides must be tapered to allow themould to be removed.

2. Vent holes need to be drilled to help draw the plastic when the vacuum is created.

3. There should be no undercuts, which will preventthe moulding being removed from the mould.

4. The mould needs a high standard of finish. Anymarks will appear on the surface of the moulding.

Vacuum forming processThe vacuum forming sheet is first clamped into position aroundits edge by an airtight seal. The sheet is then heated from aboveby the radiant heaters in the machine’s hood.

When the sheet becomes soft and pliable, between 150°-170°the heating hood is removed.

When the sheet is pliable and the heater has been removed, air is blown in under the sheet to stretch it. This is doneto reduce the thinning on the moulding. The platen is now raised into the blown sheet.

The air is then drawn from under the mould, creating a vacuum. The atmospheric air pressure above then forces thepliable sheet of plastic over the mould taking up its detailed shape.

6

IDENTIFY THE PROBLEM

In your own words... state what you’ve been asked to do.

I have been asked to ___________________________________________________________ that will

_____________________________________________________________________________________

Look at the rubric for this project on the last page and then answer the next two questions.

1. Which goal do you think will be the most challenging? ____________________________________

2. What’s ONE strategy you can try to overcome it? ____________________________________________

_____________________________________________________________________________________

DEVELOP POSSIBLE SOLUTIONS

In the boxes below, draw six (6) different versions of what your design might look like. It’s very important to label the drawings to help me understand your thinking.

Prototype #1 Prototype #2



7

CHOOSE A SOLUTION

You need to create clear, specific and labeled drawings (using rulers and other drawing instruments) from three different views (front, top and side). Draw the designs in centimeters and label the dimensions. You will not be able to begin construction until this drawing is completed. Teacher’s initial are required for approval. Follow the examples below.

A - Place a point of origin 3 blocks over and 3 blocks up

B - Draw in the object line representing the overall length (3inches or 12 blocks)

C - Draw in the object line representing the overall height (2 inches or 8 blocks)

D - Finish drawing the object lines that represent the outside edges of the shape

E - Measure and draw any other object lines that represent more surfaces

LENGTH

HEIGHT

Front ViewD

D

LENGTH

HEIGHT

Front View

E

LENGTH

HEIGHT

Front ViewC

BA

A- CHEAT Transfer the length of the shape to the top view by drawing dotted lines

B - Draw in the object line representing the overall width (2 ½ inches or 10 blocks)

C - Finish drawing the object lines that represent the outside edges of the shape

D - Measure and draw any other object lines that represent more surfaces

LENGTH

HEIGHT

Top View

CHEAT

WIDTH

A

LENGTH

WIDTH

Top View

B

C

C

Width

Top View

D

STEP 1

STEP 2

1. Front View2. Top View3. Right Side View4. Dimensions5. Isometric View


1 1/2"

2”F

ro

t

n

T

p

o

Side

Rightn

t

Le

gh

Width

Heig

ht

2 1/2"

1”

3”

3-ViewDrawings Top View

Front View SideView

LENGTH






LENGTH

HEIGHT

Front ViewD

D

LENGTH

HEIGHT

Front View

E

LENGTH

HEIGHT

Front ViewC

BA





LENGTH

HEIGHT

Top View

CHEAT

WIDTH

A

LENGTH

WIDTH

Top View

B

C

C

Width

Top View

D

STEP 1

STEP 2



1 1/2"

2”F

ro

t

n

T

p

o

Side

Rightn

t

Le

gh

Width

Heig

ht

2 1/2"

1”

3”


Front View SideView

LENGTH






LENGTH

HEIGHT

Front ViewD

D

LENGTH

HEIGHT

Front View

E

LENGTH

HEIGHT

Front ViewC

BA





LENGTH

HEIGHT

Top View

CHEAT

WIDTH

A

LENGTH

WIDTH

Top View

B

C

C

Width

Top View

D

STEP 1

STEP 2



1 1/2"

2”F

ro

t

n

T

po

Side

Rightn

t

Le

gh

Width

Heig

ht

2 1/2"

1”

3”


Front View SideView

LENGTH

A - Dimension the overall length (either the front or top view)

B - Dimension the overall height (either the front or side view)

C - Dimension the overall width (either the top or side view)

D - Dimension any other edges, cut-outs, slants, holes, etc. (don’t over dimension, it only makes the drawing look messy)

A- Draw the side view of the shape in the bottom right corner of the sketch box (over one up one)

B - Starting at point #1, draw a diagonal line up to the left 5 intersections. (take your time and hit each diagonal intersection)

C - Repeat step B for points 2, 3, 4, and 5.

D - Now simply connect all 5 dots and your isometric view will be complete.

STEP 4

STEP 5

LENGTH

HEIGHT

Front View

3”

2” HEIGHT

Top View

2 1/2” 1”

3”

WidTH

HEIGHT

Side View

2 1/2"

1 1/2"

1” 2”

Length

Sketch

12345

A

B

Sketch

12345

A

C

Sketch

12345

A

D

C

D

D

DC

C

A- CHEAT Transfer the height of the shape to the side view by drawing dotted lines


C - Draw in the object line representing the overall height (2inches or 8 blocks, you also have a dot that represents the height)

D- Finish drawing the object lines that represent the outside edges of the shape

HEIGHT

WIDTHLENGTH

CH

EA

T

Front View Side View

A

WidTH

HEIGHT

Side View

C

B

WidTH

HEIGHT

Side View

D

D

STEP 3









STEP 4

STEP 5

LENGTH

HEIGHT

Front View

3”

2” HEIGHT

Top View2 1/2

”

1”3”

WidTH

HEIGHT

Side View

2 1/2"

1 1/2"

1” 2”

Length

Sketch

12345

A

B

Sketch

12345

A

C

Sketch

12345

A

D

C

D

D

DC

C





HEIGHT

WIDTHLENGTH

CH

EA

T


A

WidTH

HEIGHT

Side View

C

B

WidTH

HEIGHT

Side View

D

D

STEP 3









STEP 4

STEP 5

LENGTH

HEIGHT

Front View

3”

2” HEIGHT

Top View

2 1/2” 1”

3”

WidTH

HEIGHT

Side View

2 1/2"

1 1/2"

1” 2”

Length

Sketch

12345

A

B

Sketch

12345

A

C

Sketch

12345

A

D

C

D

D

DC

C





HEIGHT

WIDTHLENGTH

CH

EA

T


A

WidTH

HEIGHT

Side View

C

B

WidTH

HEIGHT

Side View

D

D

STEP 3

Production DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction DrawingsProduction Drawings

Front ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront ViewFront View

Top ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop ViewTop View

Materials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials NeededMaterials Needed

Tools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools NeededTools Needed

Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View Side View

8

CHOOSE A SOLUTION

Identify which prototype you’ve chosen to make and explain why. If you really can’t describe it to me and tell

me why this prototype is insanely great, you shouldn’t be building it.

CHOOSE A SOLUTION

A paragraph has a beginning a middle and

an end.The beginning, or the topic sentence, states what the paragraph is about.

The middle develops the idea in detail by giving specific support & details

for it (usually 3 - 5).

The end (conclusion) restates the main idea in the topic sentence.

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

______________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

9

ENGINEERING YOUR PROTOTYPE

!"#

!"##$%&&'()*+,)%(#-.*/(%0%1).2#!"#$%&'(!)#*"+$,(-."&/(*&#(0"(*)112#3*&$".($4)254("#53#""%3#5(.%&63#5/7(6%3$$"#(%"+)%$/7(&#.(+3*$2%"/8(

-3#4!"5# 67.(,)89#+(7#.:;0+)(#,/.#*%&;%(.(,2#%8#+#*%&&'()*+,)%(#292,.&<#)"."<#2%'=*.<#.(*%7.=<#,=+(2&),,.=<#=.*.)>.=<#7.*%7.=<#2,%=+1.<#=.,=).>+0<#+(7#7.2,)(+,)%("#

#

?@@A<#B*).(*.#+(7#-.*/(%0%19C3(1)(..=)(1#D#E=+7.#F#G'.2,)%(#!HI#J;.(DK.2;%(2.(9(*)112#3*&$3)#('3#:(0"$6""#(&(!)&/$(;2&%.(+&$%)'(0)&$(&#.(3$/(0&/"(/$&$3)#(3/(/4)6#(0"')68(

(<4"(0)&$(2/"/($4"(/&$"''3$"($)(*)112#3*&$"(3$/(+)/3$3)#($)($4"(0&/"(/$&$3)#8(

&8 =>+'&3#($4"(+2%+)/"()?(&(."*)."%(3#(&(*)112#3*&$3)#(/@/$"18(08 -."#$3?@(%(.()?($4"(."*)."%/(3#($43/(/@/$"1(&#.(."/*%30"(4)6(3$(3/(2/".8(*8 =>+'&3#($4"(+2%+)/"()?(&($%&#/13$$"%(3#(&(*)112#3*&$3)#(/@/$"18(.8 -."#$3?@(%(.()?($4"(">&1+'"/()?(&($%&#/13$$"%(3#($43/(/@/$"18(A)%($4"(

$%&#/13$$"%(@)2(4&B"(3."#$3?3".7(">+'&3#(3$/(/+"*3?3*(%)'"8(#

#__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________

10

BUILD YOUR PROTOTYPE

Describe what you did today. Mention any problems you had, design changes or questions.

Make a labeled sketch that shows what you did.

LOG #1 Date: _________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

YES I used complete sentences to describe my progress

YES My description is neatly written and legible

YES I used key terms when possible

YES My drawing is large enough and centered in the space

YES My line quality is sharp and precise (no smudges)

YES Labels and dimensions are OUTSIDE the drawing

EXAMPLE

11



LOG #2 Date: _________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________









LOG #3 Date: _________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________







12



LOG #4 Date: _________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________







Describe what you did today. Mention any problems you had, design changes or questions..


LOG #5 Date: _________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________

__________________________________________







13

TEST & EVALUATE THE SOLUTION

Trial Antenna length

(m)

Signal strength

(1-5)

Locationnumber

1

2

3

4

5

Things that worked or went well

1. _____________________________________

2. _____________________________________

3. ____________________________________

Things that did not work or go well

1. _____________________________________

2. _____________________________________

3. _____________________________________

Things that I redesigned (changed)

1. _____________________________________

2. _____________________________________

3. ____________________________________

What the changes did

1. _____________________________________

2. _____________________________________

3. _____________________________________

Things I’d do differently next time

1. _____________________________________

2. _____________________________________

3. ____________________________________

What these might do

1. _____________________________________

2. _____________________________________

3. _____________________________________

Signal Strength1: No Signal: you can’t hear anything.

2: Inaudible Sound: you can barely hear a signal, but can’t make out any words. 3: Weak Signal: you can hear a few words here and there, but nothing that makes sense. 4: Medium Signal: you can hear most words, but it still sounds scratchy. 5: Strong Signal: you can clearly hear words or songs.

14

GOAL #1: I CAN use and follow the engineering design process in my design brief to so l ve p rob lems about commun i ca t i on technology.





This is how I’ll do it...This is how I’ll do it...This is how I’ll do it...This is how I’ll do it...This is how I’ll do it...

a. I will make a collection of concept drawings t h a t s h o w s d i f f e r e n t w a y s t o s o l v e a communication problem.





0 1 2 3 4

b. I will make three-view drawings of my “best idea” with measurements & labels that others can follow.





0 1 2 3 4

c. I will have an explanation for my “best idea” with specific reasons and supporting details.c. I will have an explanation for my “best idea” with specific reasons and supporting details.c. I will have an explanation for my “best idea” with specific reasons and supporting details.c. I will have an explanation for my “best idea” with specific reasons and supporting details.c. I will have an explanation for my “best idea” with specific reasons and supporting details.

0 1 2 3 4

d. I will create a written response to an open response question about communication technology.d. I will create a written response to an open response question about communication technology.d. I will create a written response to an open response question about communication technology.d. I will create a written response to an open response question about communication technology.d. I will create a written response to an open response question about communication technology.

0 1 2 3 4

e. I will keep track of my progress and design changes by completing engineering logs during the project.





Engineering Log #1Engineering Log #1Engineering Log #1Engineering Log #1Engineering Log #1

0 1 2 3 4


0 1 2 3 4


0 1 2 3 4


0 1 2 3 4


0 1 2 3 4

f. I will collect and display data about my prototype and use it to evaluate how well it worked.f. I will collect and display data about my prototype and use it to evaluate how well it worked.f. I will collect and display data about my prototype and use it to evaluate how well it worked.f. I will collect and display data about my prototype and use it to evaluate how well it worked.f. I will collect and display data about my prototype and use it to evaluate how well it worked.

0 1 2 3 4

Final ScoreFinal ScoreFinal ScoreFinal Score

GOAL#2: I CAN choose, use and keep track of tools and materials and have good reasons for using them.






a. I will wear safety goggles and follow all safety procedures in the workshop.a. I will wear safety goggles and follow all safety procedures in the workshop.a. I will wear safety goggles and follow all safety procedures in the workshop.a. I will wear safety goggles and follow all safety procedures in the workshop.a. I will wear safety goggles and follow all safety procedures in the workshop.

0 1 2 3 4

b. I’ll keep track of my materials and not need any replacement parts.b. I’ll keep track of my materials and not need any replacement parts.b. I’ll keep track of my materials and not need any replacement parts.b. I’ll keep track of my materials and not need any replacement parts.b. I’ll keep track of my materials and not need any replacement parts.

0 1 2 3 4

c. I will clean up my work space and put tools and materials back where they belong.c. I will clean up my work space and put tools and materials back where they belong.c. I will clean up my work space and put tools and materials back where they belong.c. I will clean up my work space and put tools and materials back where they belong.c. I will clean up my work space and put tools and materials back where they belong.

0 1 2 3 4


GOAL#3: I CAN use tools and materials to build a prototype that works.GOAL#3: I CAN use tools and materials to build a prototype that works.GOAL#3: I CAN use tools and materials to build a prototype that works.GOAL#3: I CAN use tools and materials to build a prototype that works.GOAL#3: I CAN use tools and materials to build a prototype that works.


a . I w i l l fo l low my bu i ld ing gu ide and instructions and make a radio that will receive an AM signal through the air without electricity

a. I w i l l fo l low my bu i ld ing gu ide and instructions and make a radio that will receive an AM signal through the air without electricity




0 1 2 3 4

b. I will build a prototype that looks like a f in ished product wi thout any loose parts , damaged or rough surfaces, dents, gouges or globs of glue.





0 1 2 3 4

c. I will build, test and demonstrate a prototype that is sturdy, holds together and doesn’t need repairs between multiple uses.





0 1 2 3 4


APPLIED TECHNOLOGY & ENGINEERING


Comments:

Documents

APPLIED TECHNOLOGY & ENGINEERING Postcard …...Radio, television and mobile phones, all use electromagnetic waves to transmit information. Each form of communi-cation uses a different