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Wiskunde

Graad 5

Meting en tyd

Module 42

Inhoud (volume)

Inhoud (Volume)

Aktiwiteit 1:

Om probleme op te los wat die kies van standaardeenhede insluit [LU 4.5.2, 4.6]

Om met toepaslike meetinstrumente presies te meet [LU 4.7.2]

Het jy geweet?

’n Vloeistof het nie ’n vaste vorm nie, maar neem die vorm van die houer aan. Ons meet vloeistof in liter en milliliter. Groot hoeveelhede word in kiloliter gemeet.

Onthou jy nog?

1 000 ml = 1 liter

1 000 liter = 1 kℓ

1. Jy het nou al gesien dat ons by lengte en massa verskillende meeteenhede vir verskillende situasies gebruik. Net so gebruik ons ook spesifieke eenhede om bepaalde inhoude te meet. In watter meeteenheid sal jy die inhoud van die volgende meet?

1.1 ’n oogdruppel .........................

1.2 brandstof vir Pa se motor .........................

1.3 ’n glas vrugtesap .........................

1.4 die dam waar jul dorp se water vandaan kom .........................

2. OM TUIS UIT TE VIND

2.1 ’n Teelepel hou _____ mℓ vloeistof

2.2 ’n Medisynelepel hou _____ mℓ vloeistof

2.3 ’n Eetlepel hou _____ mℓ vloeistof

2.4 ’n Teekoppie hou _____ mℓ vloeistof

2.5 ’n Koffiebeker hou ______ mℓ vloeistof

2.6 Pa se motor kan _____ liter petrol in sy tenk hou

2.7 Jul swembad (as jul een het) hou _____ kℓ water

2.8 Jul ketel hou _____ liter water

2.9 ’n Klein botteltjie medisyne hou _____ mℓ

2.10 Jy bad in ongeveer _____ liter water

3. Gebruik jou antwoorde hierbo en beantwoord die volgende:

3.1 Ma drink elke dag vyf koppies tee. Hoeveel mℓ tee is dit? .....................

Hoeveel liter tee drink sy daagliks? .....................

3.2 Pa drink drie bekers koffie by die werk. Hoeveel ml koffie drink hy daar?..................

Skryf dit as liter. .....................

  • Hoeveel keer kan jy medisyne drink voordat die bottel leeg is as jy twee teelepels

op ’n slag moet drink? .....................

Het jy geweet?

Die grootste waterval in die wêreld is die Bogoma-water­val in die Kongorivier. Daar vloei elke sekonde 17 000 kiloliter water oor die rand van dié waterval! Kan jy sê hoeveel liter water dit per sekonde is?

Aktiwiteit 2:

Om probleme op te los wat die kies van berekening met en herlei van standaard-eenhede insluit [LU 4.6]

1. Voltooi die volgende tabelle:

1.1 m 3 268 4 .............. 16 .............. 369 ..............
liter 3, 268 .............. 0,98 .............. 1,423 .............. 0,006
1.2 liter 7 000 18 .............. 1 479 .............. 3,012
k 7 .............. 0,002 .............. 0,261 ..............

2. Vermeerder die volgende inhoude met 75 mℓ:

2.1: 4,325 liter .........................

2.2: 2,500 liter .........................

2.3: 6,050 liter .........................

2.4: 5,035 liter .........................

3. Verminder die volgende inhoude met 50 liter:

3.1: 16,750 kℓ .........................

3.2: 13,085 kℓ .........................

3.3: 18,900 kℓ .........................

3.4: 17,658 kℓ .........................

OPTELLING EN AFTREKKING

Wanneer ek moet optel of aftrek met die eenhede van meting, massa of inhoud, is dit die maklikste om alles eers na die kleinste eenheid te herlei , bv.

Questions & Answers

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
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
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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
Daniel
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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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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