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Graad 4

Energie en verandering

Module 33

Besparing van elektrisiteit


Om maniere te bespreek hoe om elektrisiteit te bespaar

[lu 3.2]

Bring ‘n ou elektrisiteitsrekening van julle huis skool toe en bespreek dit. Kyk hoe die bedrag van maand tot maand, somer en winter en huis tot huis verskil.

Bespreek wenke oor die besparing van elektrisiteit in julle huis. Deel dit vanaand met jou ouers.

Moenie warm kos/vloeistowwe in die yskas sit nie.

Moenie water in ‘n kastrol op die stoof kook nie – gebruik liewer die ketel.

Moenie ‘n kastrol met ‘n skewe boom gebruik nie, want dit het meer hitte nodig.

Moenie ‘n groot plaat gebruik vir ‘n klein kastrolletjie/pan nie – ongebruikte hitte gaan verlore

Moenie die stoof gebruik om ‘n vertrek te verwarm nie – ‘n verwarmer werk goedkoper.

Skakel onnodige ligte af .

Moenie meer as net genoeg warm water gebruik om te bad nie.

Sorg dat krane en storte nie lek nie.

Gebruik koue water vir wasgoed.

ONTHOU: jy betaal vir die elektrisiteit wat jy vermors!

Kies ‘n vertrek in jou huis. Knip prentjies van toestelle wat die meeste in daardie vertrek gebruik word uit ou tydskrifte en koerante. Advertensies van meubelwinkels sal ook goed te pas kom. Plak dit in die spasie hieronder.


LEERUITKOMS 3: WETENSKAP, DIE SAMELEWING EN DIE OMGEWING Die leerder is in staat om begrip van die onderlinge verband tussen wetenskap en tegnologie, die samelewing en die omgewing te toon.


Dis duidelik wanneer die leerder

  • die impak van wetenskap en tegnologie verstaan.


Hoe om elektrisiteit te bespaar

  • Warm kos in die yskas is verkeerd.
  • Water kook in ‘n kastrol is verkeerd, in ‘n ketel is korrek.
  • ‘n Skewe kastrol is verkeerd, ‘n plat boom is korrek.
  • ‘n Klein kastrol op ‘n groot plaat is verkeerd, ‘n klein kastrol op ‘n klein plaat is korrek.
  • ‘n Stoof as verwarmer is verkeerd, ‘n verwarmer is korrek.
  • Om onnodige ligte af te skakel, is korrek.
  • Te veel water in ‘n bad is verkeerd.
  • Stort is korrek.
  • Warm water vir wasgoed is verkeerd.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
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
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
characteristics of micro business
for teaching engĺish at school how nano technology help us
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
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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.
what is the actual application of fullerenes nowadays?
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.
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.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
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.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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