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Natuurwetenskappe

Energie-oordrag en stelsel

Gebruike van elektriese energie

Opvoeders afdeling

Memorandum

Kleure: Groen/geel bo, bruin en blou links en regs (lg. twee kan omruil).

Aarddraad: Lei stroom af sodat daar nie oorverhitting ontstaan nie/laat aard-lekkasieskakelaar uitskop om stoof af te sny. Anders kan brand ontstaan of kan persoon doodgeskok word.

Teken: Gevaar. Elektrisiteitinstallasies is gevaarlik. Nie net skokke nie, maar bestraling/magneetvelde is skadelik vir die mens.

Leerder afdeling

Inhoud

Aktiwiteit: om die internasionale kleurkode vir bedrading te kan beskryf en toepas, en om die veiligheidsmaatreëls by die gebruik van elektrisiteit te kan opnoem [lu 1.2, lu 1.3, lu 2.3]

  • Die drie-aar-elektriese draad bestaan uit drie geleiers, elk met sy kenmerkende kleur. Elke geleier het sy eie funksie. Die kleure van die drie geleiers in die draad word in byna alle lande gebruik en staan bekend as die internasionale kleurkode .

Kragproppe behoort volgens die internasionale kleurkode bedraad te word.

  • Die blou draad is die neutrale geleier en gelei elektrisiteit vanaf die apparaat na die kragbron.
  • Die bruin draad is die lewendige geleier en gelei elektrisiteit vanaf die kragbron na die apparaat.
  • Die geel-en-groen draad is die aarddraad en gelei oormatige elektrisiteit weg in die geval van ‘n kortsluiting.

Jul onderwyser sal ‘n kragprop wat korrek bedraad is aan julle wys. Maak seker dat julle weet presies waar elkeen van die geleiers vasgeskroef moet word, anders kan die toestel lewensgevaarlik wees as iemand daaraan sou raak.

Gebruik die toepaslike kleur en dui aan hoedat jy die prop in die volgende skets sal bedraad.

  • Doen navorsing en vind uit hoekom die aarddraad belangrik is. Verwys ook na die aardlekkasieskakelaar op die skakelbord by julle huis.

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  • Het jy hierdie teken al gesien?

Wat beteken dit? ___________________________________________________

Hoekom word dit altyd by elektriese aanlegte vertoon?

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  • Elektrisiteit is gevaarlik. Onthou die volgende veiligheidsmaatreëls as jy met elektrisiteit werk:

- Moet nooit ‘n elektriese apparaat wat stukkend is, self probeer regmaak nie. Vra liefs ‘n opgeleide elektrisiën om die herstelwerk te doen.

- Water is ‘n goeie geleier van elektrisiteit. Moet dus nooit met elektrisiteit werk terwyl jy naby water staan nie.

- Moenie ‘n kragprop uit ‘n kragsok trek deur aan die draad te pluk nie.

- Maak seker dat jy weet waar die gebou se hoofskakelaar sit. Wanneer iets verkeerd gaan, kan jy onmiddellik die hoofstroom afskakel.

- Pasop om elektriese drade onderdeur matte aan te lê. Dit is baie moeilik om die toestand van die drade te ondersoek, indien dit nie te alle tye sigbaar is nie.

VDit is ‘n goeie beleid om elektriese apparate van tyd tot tyd deur ‘n gekwalifiseerde elektrisiën te laat ondersoek.

Assessering

Leeruitkomste 1: Die leerder is in staat om met selfvertroue op weetgierigheid oor natuurlike verskynsels te reageer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Assesseringstandaard 1.2: Dit is duidelik wanneer die leerder ondersoeke uitvoer en data versamel;

Assesseringstandaard 1.3: Dit is duidelik wanneer die leerder data evalueer en bevindings kommunikeer.

Leeruitkomste 2: Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder inligting interpreteer.

Questions & Answers

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
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
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
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
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natuurwetenskappe graad 6. OpenStax CNX. Sep 17, 2009 Download for free at http://cnx.org/content/col11080/1.1
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