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y = 5,094 m + 342 mm + 0,087 m + 9 mm

= 5 094 mm + 342 mm + 87 mm + 9 mm

5 094

342

87

+ 9

5 532

= 5 532 mm

y = 5,532 m

Ek herlei ook alles eers na die kleinste eenheid wanneer ek moet aftrek, bv.

k = 9,075 ton – 4 328 kg

= 9 075 kg – 4 328 kg

9 075

− 4 328

4 747

= 4 747 kg

k = 4,747 t

5. Bereken die volgende:

5.1: c = 4,7 km + 876 m + 2,794 km + 65 m

5.2: e = 7,632 kg – 1 278 g

5.3: f = 2,03 kℓ + 432 liter + 0,869 kℓ + 38 liter

5.4: h = 19 liter – 2 347 mℓ

Aktiwiteit 3:

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

Kies ‘n maat en probeer om die volgende probleme op te los. Julle mag NIE ‘n sakrekenaar gebruik nie! Vra jul opvoerder vir die nodige folio.

1. Die volgende items moet vol petrol gemaak word:

  • die skoolbus 85,6 liter
  • ‘n motorfiets 14,65 liter
  • ‘n leë kannetjie 893 mℓ
  • ‘n bakkie 64,4 liter
  • Hoeveel liter petrol sal altesaam gebruik word?
  • Skryf jou antwoord as kℓ.

2. ‘n Gesin se massa is soos volg:

  • Baba (pasgebore) 2 667 g
  • Sus 19,8 kg
  • Ma 63,9 kg

2.1 Wat is die gesin se gesamentlike massa in kg?

2.2 Skryf jou antwoord in ton.

3. Die Gr. 5’s doen lapverf op stukke materiaal met die volgende lengtes:

  • 585 mm
  • 1,024 m
  • 362 mm

3.1 Op hoeveel mm materiaal is altesaam geverf?

3.2 Gee jou antwoord as meter.

4. As ’n olifant gemiddeld 7 ton en ‘n seekoei gemiddeld 1 500 kg weeg, wat is die verskil in hul massa? Gee jou antwoord eers in kg en dan in ton.

5. In ‘n vaatjie is daar ongeveer 9,5 liter water. As ek ‘n 775 mℓ bottel daaruit volmaak, hoeveel ml water bly in die vaatjie oor? Skryf jou antwoord ook as liter.

6. Daar is 16,84 materiaal op ‘n rol. As Ma 739 cm daarvan afknip, hoeveel meter materiaal bly op die rol oor?

Skryf jou antwoord as mm.

7. Kontroleer jul antwoorde met ‘n sakrekenaar.

8. Vergelyk nou jul antwoorde met dié van die res van die klas en hou ‘n klasbespreking oor die beste manier om bogenoemde probleme op te los.

9. Gee nou jul oplossings vir jul opvoeder om te assesseer.

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

1. 1.1: ml

1.2: ℓ

1.3: ml

1.4: kl

2. 2.1: 5

2.2: 5

2.3: 15

2.4: 200

2.5: 250

2.6 – 2.10 eie antwoorde

3. 3.1: 1 000

1 ℓ

3.2: 750

0,750

HET JY GEWEET?

17 000 000

AKTIWITEIT 2

2.1

ml 980 1 423 6
liter 0,004 0,016 0,369

2.2

liter 2 261
kl 0,018 1,479 3,012

3.

3.1: 4,342 ℓ

3.2: 2,575 ℓ

3.3: 6,125 ℓ

3.4: 5,110 ℓ

4. 4.1 16,7 kl

4.2: 13,035 kl

  • :18,850 kl
  • :4.4 17,608 kl

5.

5.1: 8,435 km

5.2: 6 354 g

5.3: 3 369 ℓ

8 435 m; 3,369 kl

]5.4 16 653 ml

6,354 kg; 16,653 ℓ

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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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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