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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

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
Do somebody tell me a best nano engineering book for beginners?
s. Reply
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?
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
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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