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OPDRAG 4:

[LU 1.2]

Verduidelik kortliks waarvoor elke meetinstrument gebruik word:

  1. ‘n meetband
  2. ‘n klikwiel
  3. ‘n meterstok
  4. ‘n liniaal

Assessering

LU 1

Tegnologiese Prosesse en Vaardighede

Die leerder is in staat om tegnologiese prosesse en vaardighede eties en verantwoordelik toe te pas deur toepaslike inligtings- en kommunikasietegnologie te gebruik.

Dit is duidelik wanneer die leerder:

Ondersoek :

1.1 uitvind oor die agtergrondkonteks (bv. mense, omgewing, aard van behoefte) wanneer ‘n probleem, behoefte of geleentheid gegee word en die voordele en nadele wat ‘n tegnologiese oplossing vir mense sou kon inhou, noem;

1.2 uitvind oor bestaande produkte wat relevant vir ‘n probleem, behoefte of geleentheid is, en sommige ontwerpsaspekte (bv. vir wie dit is, waarvoor dit is, hoe dit lyk, waarvan dit gemaak is) identifiseer;

1.3 waar gepas ‘n wetenskaplike ondersoek uitvoer oor begrippe wat relevant vir ‘n probleem, behoefte of geleentheid is deur wetenskapprosesvaardighede te gebruik:1.3.1 beplan die ondersoek;

  • voer die ondersoek uit;

1.3.3 verwerk en interpreteer data;

1.3.4 evalueer en kommunikeer bevindinge;

Ontwerp

1.4 met bystand ‘n kort en duidelike stelling skryf of kommunikeer (ontwerpopdrag) met betrekking tot ‘n gegewe probleem, behoefte of geleentheid en ‘n mate van begrip vir die tegnologiese doel van die oplossing toon;

1.5 minstens twee alternatiewe oplossings vir die probleem, behoefte of geleentheid voorstel wat met die ontwerpopdrag en met gegewe spesifikasies en beperkings (bv. mense, doel, omgewing) skakel, en dit aanteken;

1.6 een van hierdie oplossings kies, redes gee vir die keuse en die idee verder ontwikkel;

Maak

1.7 die stappe beskryf in ‘n plan om iets te maak, insluitend tekeninge of sketse van hoofdele;

1.8 gepaste gereedskap en materiaal gebruik om produkte te maak deur die gekose materiaal af te meet, uit te merk, te sny of te skei, te vorm of te vervorm, aan mekaar te heg, te las of saam te voeg, en af te rond;

1.9 netjies en veilig werk met die minimum vermorsing van materiaal;

Evalueer

1.10 met bystand die produk evalueer volgens die ontwerpopdrag en gegewe spesifikasies en besperkings (bv. mense, doel, omgewing), en verbeteringe en wysigings voorstel, indien nodig;

1.11 die aksieplan wat gevolg is, evalueer en verbeteringe en wysigings voorstel, indien nodig;

Kommunikeer

  • tweedimensionele sketse maak met byskrifte en, indien gepas, kleur gebruik om dit doeltreffender te maak.

LU 3

Tegnologie, Samelewing en Omgewing

Die leerder is in staat om begrip van verwantskappe tussen wetenskap, tegnologie, die samelewing en die omgewing oor tyd heen te toon.

Dit is duidelik wanneer die leerder :

impak van tegnologie

3.2 die moontlike positiewe en negatiewe uitwerking van wetenskaplike ontwikkelings of tegnologiese produkte op mense se lewensgehalte en/of die omgewingsgesondheid identifiseer.

Memorandum

Opdrag 1

Die lengtes van ledemate verskil en daarom was daar nie konsekwente lengtes nie. Handelaars kan mekaar dus opsetlik benadeel.

Opdrag 2

  • 12 span
  • Volgende vyf lengtes se antwoorde word bepaal deur elke individuele leerder se lengte.
  • 3 m
  • eie diskresie

Opdrag 3

Antwoorde sal afhang van individuele antwoorde wat verkry en verwerk is.

Opdrag 4

1. ‘n band waarop mate aangedui word waarmee sekere lengtes bepaal word

2. ‘n apparaat waarmee lengtes met boë bv. ‘n atletiekbaan uitgemeet word,

3. ‘n apparaat wat volgens die internasionale lengtemaat van 1 m gekalibreer is

4. ‘n plat of ronde stokkie, gebruik om reguit lyne te trek, gewoonlik ook van maatverdeling voorsien om mee te meet

Bron: Verklarende Handwoordeboek van die Afrikaanse Taal, Perskor

Questions & Answers

how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
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
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
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
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
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
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Tegnologie graad 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10978/1.2
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