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Tegnologie

Graad 7

Stelsels en beheer: vervoer

Module 1

Veiligheid

Veiligheid

Gebruik veilige werkspraktyke en toon ‘n bewustheid van doeltreffende maniere om materiaal en gereedskap te gebruik.

Dit is belangrik om veiligheidsmaatreëls te ken en van die begin af toe te pas. Maak seker dat jy weet waar die Noodhulptas en die hoofskakelaar is. Onthou ook om alle ongelukke by jou onderwyser/ es aan te meld.

  • Dra altyd ‘n voorskoot af ‘n oorjas om jou klere te beskerm en toe skoene om jou voete te beskerm.
  • Trek jou baadjie / trui uit en rol jou moue op. Druk ook jou das se punte in jou hemp in.
  • Dogters moet lang hare uit hul gesigte hou deur dit in ‘n poniestert vas te maak.
  • Verwyder verkieslik alle juweliersware soos ringe, kettinkies en armbande.
  • Moenie onverskillig met gereedskap soos skroewedraaiers wees nie.
  • Moenie hardloop of rondspeel in die klas nie, veral nie met gereedskap in jou hande nie.
  • Moenie hardop uitskree terwyl daar met gereedskap gewerk word nie.
  • Jy mag nie alleen of sonder toestemming met enige gereedskap of masjiene werk nie.
  • Volg alle instruksies oor die gebruik van apparate noukeurig.
  • Dra skerp gereedskap naby jou lyf en met die skerp punt na onder.
  • Moenie gereedskap gebruik vir ‘n ander doel as waarvoor dit gemaak is nie.
  • Plaas gereedskap na gebruik terug op sy oorspronklike posisie.
  • Hou jou werkoppervlak en vloerspasie rondom skoon en netjies.
  • Gebruik elektriese toestelle slegs na deeglike opleiding en met toestemming.
  • Moenie elektriese toestelle in klam of nat toestande gebruik nie.
  • Slegs een leerder word op ‘n slag by ‘n elektriese toestel toegelaat.
  • Maak ‘n masjien skoon na gebruik en rapporteer enige probleme of beskadiging, soos bv. dat ‘n draadskêr stomp is.
  • Was jou hande deeglik en droog hulle af na elke les.
  • Was jou hande veral deeglik as jy met olie, chemikalieë, verf of gom gewerk het.
  • Moenie hout in jou een hand vashou as jy dit met die ander hand saag nie.
  • Moenie ‘n skroef in ‘n stuk hout indraai as jy laasgenoemde in jou hand vashou nie.

Moenie in die rigting van jou ander hand of jou lyf beitel nie.

  • Gebruik ‘n saagplank vir enige saagwerk.
  • Sit gereedskap so neer dat die snykant weg van jou naaste maat is.

VEILIGHEID TEN OPSIGTE VAN ELEKTRISITEIT

Verskeie projekte vereis òf hoofstroomelektrisiteit òf battery-elektrisiteit. Kennis moet geneem word dat water en vog elektrisiteit gelei. Alle elektriese toestelle moet met sorg hanteer word, veral kondensators. Batterye moet verkieslik in aparte houers gebêre word. Batterye moet uit stroombane verwyder word. Stroombane moet oop wees as projekte gebêre word. Moenie met hoofstroomelektrisiteit speel nie, want jy kan jou doodskok. Skok kan ernstige brandwonde en ander beserings veroorsaak.

Hoe om ‘n elektriese toestel aan te skakel

  • Kontroleer dat die toestel afgeskakel is.
  • Kontroleer dat die sok afgeskakel is.
  • Kontroleer of die elektriese koord en prop nie beskadig is nie.
  • Druk die prop in die sok.
  • Skakel die sok aan by die muurskakelaar.
  • Skakel die apparaat aan by die skakelaar.

Hoe om ‘n elektriese toestel af te skakel

  • Skakel die toestel af by die skakelaar.
  • Skakel die sok af by die muurskakelaar.
  • Verwyder die prop van die sok.

Questions & Answers

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
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Mueller Reply
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Source:  OpenStax, Tegnologie graad 7. OpenStax CNX. Sep 10, 2009 Download for free at http://cnx.org/content/col11031/1.1
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