<< Chapter < Page Chapter >> Page >

Opdrag 3:

LU/AS 1.10

Gebruik die skets as ‘n templaat en plak die bladsy op karton. Trek die vier vinne af op dikker, stewiger karton. Knip dit netjies uit. Vou die stippellyn om en plak die vinne onder om die bottel mooi ewe ver uit mekaar.

Opdrag 4:

LU/AS 1.10

Let wel:

Weet jy hoe om hierdie skets van ‘n vin op skaal/in verhouding te vergroot na ‘n vin van ± 20 cm?

  • Trek vierkante bo-oor die skets – vier in die breedte en agt in die lengte.
  • In hierdie geval is elke vierkantjie 5 mm by 5 mm.
  • Trek vierkante van 30 mm by 30 mm op ‘n A4-vel papier – vier in die breedte en agt in die lengte.
  • Trek dan die patroon op die groter blokke oor.
  • Nou het jy ‘n vin van ± 20 cm.

Opdrag 5:

Besluit watter tipe rompvin die geskikste is en maak ‘n duidelike vryhandskets van jul keuse

LU/AS 1.8

Opdrag 6:

Maak ‘n finale tekening (korrekte grootte en met besonderhede) van ‘n rompvin op ‘n vel papier, wat jul as templaat kan gebruik om op die dik karton of ander geskikte materiaal na te trek.

LU/AS 1.14

Opdrag 7:

Maak die romp van die vuurpyl deur die volgende instruksies te volg.

LU/AS 1.14

Instruksies

Knip een 2 ℓ bottel by die tweede lyn net onder die plakker middeldeur (Skets 1). Die deel wat die prop op het, gaan die boonste puntgedeelte van jou vuurpyl vorm. Die heel bottel met die opening ondertoe gedraai, vorm die onderste gedeelte van jou vuurpyl. Jy wil ‘n gewig in die boonste deel van jou vuurpyl hê.

Waarom?

  • Die vuurpyl is nie gebalanseer as die enjin in die onderste gedeelte is nie. Dit is die swaarste deel. Jy moet ‘n swaartepunt vind, sodat die massas weerskante eweredig versprei kan word.
  • Daarom is dit nodig om iets swaars in die boonste gedeelte van jou vuurpyl te plaas sodat die vuurpyl meer stabiel kan wees.
  • As die brandstof bykom, is die vuurpyl se onderkant nog swaarder.
  • As ‘n vuurpyl stabiel is, hou dit aan om vertikaal opwaarts te vlieg, sonder om om te tuimel en rigting te verloor.
  • Plaas dus ‘n paar groterige rivierklippies in ‘n banksakkie en plak dit stewig vas op die bodem aan die buitekant van die heel bottel wat onderstebo gehou word
  • Plaas nou die boonste deel van die deurgeknipte bottel bo-op en plak dit stewig aan die heel bottel met maskeerband/sterk breë kleeflint vas.

Opdrag 8:

Teken ‘n bo-aansig van die plasing van die vinne. Gebruik ‘n gradeboog en sakrekenaar vir die korrekte spasiëring.

LU/AS 1.14

Plak nou die vinne vas soos beplan. Nadat die vuurpyl voorlopig voltooi is, is dit nou nodig om die swaartepunt en drukmiddelpunt van jou vuurpyl te vind.

Assessering

Leeruitkomstes(LUs)
LU 1
Tegnologiese Prosesse en VaardighedeDie leerder is in staat om tegnologiese prosesse en vaardighede eties en verantwoordelik toe te pas deur gepaste inligtings- en kommunikasietegnologie te gebruik.
Assesseringstandaarde(ASe)
Dit is duidelik wanneer die leerder:
Ondersoek :1.3 ondersoek uitvoer deur middel van eenvoudige praktiese toetse met betrekking tot aspekte van die tegnologiese kennisvelde (Strukture, Verwerking, Stelsels en Beheer);
Ontwerp :1.7 minstens twee alternatiewe oplossings genereer en die idees annoteer;
1.8 moontlike oplossings kies, sinvolle redes vir keuse gee en ‘n gekose idee deur middel van grafika of modelleringstegnieke ontwikkel;
Maak :1.10 gepaste gereedskap en materiaal kies en gebruik om produkte deur middel van gepaste tegnieke te maak deur verskillende soorte materiaal akkuraat te meet, uit te merk, te knip/sny of te skei, te vorm of te vervorm, te heg, te las of saam te voeg, en af te rond;

Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Tegnologie graad 7. OpenStax CNX. Sep 10, 2009 Download for free at http://cnx.org/content/col11031/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Tegnologie graad 7' conversation and receive update notifications?

Ask