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Natuurwetenskappe

Materie, meting en reaksies

Materie en meting

Opvoeder afdeling

Memorandum

Opdrag 4:

1. Nee

2. Nee

  • Dit sal styg, want die klein visse beslaan die ruimte van die water en dan moet die water ‘n ander ruimte inneem.
  • Eksperiment: aanvaar enige beplanning wat sin maak, byvoorbeeld ‘n fietspomp waarvan die stang nie heeltemal ingedruk kan word nie as die uitlaatopening toegedruk word.

Massa teenoor gewig: massa gee ‘n aanduiding van die hoeveelheid materie, terwyl gewig aandui hoe sterk die aarde die voorwerp aantrek. Massa bly dus onveranderd terwyl gewig deur die plek op die aarde beïnvloed word – bv. ver op in die atmosfeer is dit minder.

Leerder afdeling

Inhoud

Aktiwiteit: om te kan verduidelik dat alle materie ruimte beslaan en volume en massa besit [lu 1.1, lu 2.3]

Opdrag 4

Materie beslaan ruimte

Bestudeer die volgende sketse en beantwoord dan die vrae wat volg:

1. Kan twee voorwerpe op dieselfde tyd dieselfde ruimte beslaan? (Ja / Nee)

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2. Kyk na die skets van die vis in die akwarium:

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  • Beslaan die vis en die water dieselfde ruimte?

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  • Wat sou met die watervlak gebeur as die vis kleintjies kry?

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Wanneer ons die bostaande sketse bestudeer, is dit duidelik dat geen voorwerpe op dieselfde tyd dieselfde ruimte kan beslaan nie. Die rede is heel eenvoudig: elke voorwerp het sy eie ruimte nodig. 'n Ander afleiding wat ons kan maak, is dat wanneer materie deur 'n ander stof verplaas word, die verplaaste stof ander beskikbare ruimte inneem.

Materie besit volume en massa

As jy 'n blikkie koeldrank opdrink, is die blikkie nie leeg nie. Waar die inhoud van die blikkie eers koeldrank was, is dit nou lug! Dieselfde spasie word dus nou deur 'n ander vorm van materie in beslag geneem! Somtyds praat ons van die inhoud van die blikkie wat verwys na die materie wat in die blikkie is. Die ruimte wat in die blikkie deur die materie (in hierdie geval lug óf koeldrank) beslaan word, word die volume genoem. In 'n sekere sin is volume en inhoud dus sinonieme.

Beplan ‘n eksperiment om te bewys dat lug ruimte beslaan.

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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, Natuurwetenskappe graad 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11078/1.1
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