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5. Net so is 1 000 m = 1 km

Dus: 1 407 m = 1 km 407 m

= 1,407 km

Voltooi die tabel:

Lengte in m 2 368 ............ 426 ............ 38 ............ 9
Lengte in km 2,368 7 ............ 0,6 ............ 1,48 ............

Aktiwiteit 3:

Om twee-dimensionele figure te meet en s.i.-eenhede te gebruik om op te teken [lu 4.5.3]

Skaal:

Het jy geweet?

Wanneer ons iets teken, bv. ’n huis, teken ons dit nie lewensgroot nie.

Ons teken dit op skaal. Die vorm bly dus dieselfde, maar nie die grootte nie. Die mes is bv. op ’n skaal 1 tot 4 geteken.

Dink ook aan kaarte. ’n Plek word gewoonlik daarop kleiner geteken as wat dit in werklikheid is. ’n Skaal sê vir ons hoe om afstande op ’n kaart te kry. Gewoonlik dui die skaal aan dat 1 cm op die kaart 500 km is, soos in die geval van die kaart hieronder.

1. Beantwoord die volgende vrae:

1.1 Hoe lank is die mes hierbo regtig? ..................................................

1.2

  1. Hoe ver is dit regtig volgens die skaal van dorp A na B? ....................
  1. En van C na D? ....................

2. Bepaal die skaal van elke item hieronder.

2.1 Die lengte van die potloodkryt is 15 cm.

Skaal: .........................................

2.2 Die lengte van die bottel is 80 cm.

Skaal: .........................................

2.3 Die lengte van die vis is 45 cm.

Skaal: .........................................

Meet nou die afstand.

  • Hoeveel cm is dit?
  • Hoeveel m is dit?
  • Neem nou enige 340 ml koeldrankblikkie en meet die afstand rondom die blikkie

in mm.

Assessering

LU 4
MetingDie leerder is in staat om gepaste meeteenhede, instrumente en formules in 'n verskeidenheid kontekste te gebruik.
Dit is duidelik wanneer die leerder:
4.1 analoog-, digitale en 24-uur-tyd tot minstens die naaste minuut en sekonde lees, sê en skryf;
4.2 probleme oplos wat berekeninge met en herleiding tussen geskikte tydeenhede behels, insluitend dekades, eeue en millennia;
4.3 instrumente gebruik wat tyd meet tot op geskikte vlakke van noukeurigheid, insluitend polshorlosies en stophorlosies;
4.4 maniere in verskillende kulture beskryf en illustreer om tyd deur die geskiedenis heen te meet en voor te stel;
4.5 SI-eenhede gebruik om voorwerpe en vorms te skat, te meet, aan te teken, te vergelyk en te orden met geskikte akkuraatheid vir:
  • massa m.b.v. gram (g) en kilogram (kg);
  • kapasiteit m.b.v. millimeter (mm), sentimeter (cm), meter (m) en kilometer (km);
  • lengte m.b.v. millimeter (mm), sentimeter (cm), meter (m) en kilometer (km);
4.6 probleme oplos wat die kies van, berekening met en herleiding tussen geskikte S.I.-eenhede (sien hierbo) behels, terwyl geskikte kontekste vir Tegnologie en Natuurwetenskappe geïntegreer word;
4.7 gepaste meetinstrumente gebruik (met ‘n begrip vir die beperkings daarvan) tot op geskikte vlakke van noukeurigheid, insluitend:
  • badkamerskale, kombuisskale en balanse om massa te meet;
  • maatbekers om volume te meet;
  • liniale, meterstokke, maatbande en klikwiele om lengte te meet.

Memorandum

AKTIWITEIT 1

3. maatband / meterstok / meterwiel (klikwiel) / liniaal / tou / wol

1. 1.1: cm

1.2: m

1.3: m

1.4: mm

1.5: km

1.6: m

2. 2.1: 2 m

2.2: 26 cm

2.3; 674 km

3.

42 179 1463
8,5 24,5 102,6

4.

mm m
3 000
0,367
4 700
0,028
67
0,006

5.

7 000 600 1 480
0,426 0,038 0,009

AKTIWITEIT 3

1. 20 cm

1.1: 1 250 km

1.2: 1 500 km

2. 2.1: 1:5

2.2: 1:20

2.3: 1:15

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
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What is meant by 'nano scale'?
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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
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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
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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
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Source:  OpenStax, Wiskunde graad 5. OpenStax CNX. Sep 07, 2009 Download for free at http://cnx.org/content/col10993/1.1
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