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Natuurwetenskappe

Energie-oordrag en kragte

Opvoeders afdeling

Memorandum

(a) Vliegtuigloodse/op skepe.

(b) Vergemaklik die taak om skroewe vas of los te draai, aangesien die skroewe deur die gemagnetiseerde skroewedraaier aangetrek word.

(c) Min krag word benodig om die deur toe te maak, aangesien dit deur magnetisme aangetrek word; dit is belangrik dat ‘n yskas dig seël.

(d) Om fyn stukkies staal uit ‘n pasiënt se oog te verwyder.

(e) Klankgolwe word aangetrek.

(f) Afstandbeheerde speelgoed.

Kom ons toets ons kennis

(a) Afstoot; aantrek.

(b) Die wat deur ‘n magneet aangetrek word, is magneties en die wat nie deur ‘n magneet aangetrek word nie, is nie-magneties.

(c) Albei pole is ewe sterk.

(d) Noordpool na die suidpool.

(e) Uitsit.

(f) Koper.

(g) Onwaar.

(h) Suidpool.

(i) Noordpool.

(j) Toets of dit magnetiese stowwe kan aantrek.

Leerder afdeling

Inhoud

Aktiwiteit: groepwerk: om die nuttige aanwending van magnete in die alledaagse lewe te beskryf [lu 2.4]

(a) ‘n Magneet wat vry draai, word ‘n kompas genoem. ‘n Kompas dui vir ons rigting aan.

Die naald kom altyd tot rus met een pool wat noord wys – noordsoekende pool of noordpool van die magneet. Die ander pool van die naald is die suidsoekende pool of suidpool van die magneet.

Noem twee gevalle waar die gebruik van kompasse noodsaaklik is:

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(b) Sommige skroewedraaiers is gemagnetiseer.

Van watter nut is dit vir die gebruiker?

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(c) Yskaste, asook sommige kaste, het magnete in hul deure.

Waarom word magnete in deure gebruik?

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(d) Dokters gebruik ook sterk magnete.

Kan jy dink waarvoor?

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(e) Telefone en luidsprekers bevat magnete.

Wat is die funksie van die magnete in hierdie instrumente / toerusting?

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(f) Sommige speelgoed het magnete.

Van watter speelgoed weet jy wat magnete het en waarom het dit magnete?

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Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
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
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
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
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
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
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
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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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