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Summary Fisiese Wetenskap Graad 10 Kwartaal 01 (Via Afrika handboek)
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0, Inhoudsopgawe
Onderwerp 1 : Materie en stowwe ................................................................................................ 2
Eenheid 1 : Hersiening en klassifikasie van materie en stowwe ................................................... 2
Eenheid 2 : Vorme van materie en die kinetiese molekulêre teorie .............................................. 5
Eenheid 3 : Atoom ........................................................................................................................ 6
Eenheid 4 : Die Periodieke Tabel ................................................................................................. 9
Eenheid 5 : Chemiese binding.................................................................................................... 12
Onderwerp 2 : Golwe, klank en lig .............................................................................................. 14
Eenheid 1 : Vibrasies ................................................................................................................. 14
Eenheid 2 : Transversale pulse .................................................................................................. 15
Eenheid 3 : Transversale golwe ................................................................................................. 17
Eenheid 4 : Longitudinale golwe................................................................................................. 19
Eenheid 5 : Klank ....................................................................................................................... 21
Eenheid 6 : Elektromagnetiese straling ...................................................................................... 22
Formuleblad ................................................................................................................................. 24
Algemene vakinligting ................................................................................................................. 26
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, Onderwerp 1 : Materie en stowwe
EENHEID 1 : HERSIENING EN KLASSIFIKASIE VAN MATERIE EN STOWWE
Die eienskappe van materie
• Sterkte.
• Digtheid.
• Magnetisme.
• Smeltpunt en kookpunt.
• Brosheid of smeebaarheid.
• Termiese geleidingsvermoë.
• Elektriese geleidingsvermoë.
Materie is óf 'n suiwer stof óf 'n mengsel
• ’n Suiwer stof kan nie in verskillende stowwe deur fisiese metodes geskei word nie.
• Suiwer stowwe is elemente soos suurstof asook verbindings soos koolstofdioksied.
• ’n Mengsel bestaan uit 2 of meer stowwe wat ’n mens fisies kan skei.
• ’n Suikeroplossing is ’n mengsel omdat ’n mens die water en die suiker kan skei.
• ’n Mengsel bevat stowwe wat nie in vaste verhoudings is nie.
Mengsels is óf homogeen óf heterogeen
• Die suikeroplossing is homogeen, omdat suiker en water nie afsonderlik gesien kan word nie.
• ’n Mengsel van rots en water is heterogeen, want ons kan die verskillende stowwe onderskei.
Suiwer stowwe
• Kan óf elemente óf verbindings wees.
Elemente
• Stof wat nie verder afgebreek kan word in enige iets eenvoudiger nie.
• Al die atome van ’n spesifieke element is dieselfde.
• Verskillende elemente bestaan uit verskillende atome.
Verbindings
• Kan in twee of meer stowwe afgebreek word deur chemiese metodes.
• Water is 'n voorbeeld van 'n verbinding en bestaan uit waterstofen suurstofatome.
• Eienskappe van verbindings is nie dieselfde as hulle bestanddele nie.
Verskille tussen verbindings en mengsels
• Die verskillende stowwe in ’n verbinding word in vaste verhoudings chemies verbind.
• Die stowwe in ’n mengsel kan maklik met fisiese metodes geskei word.
• Die eienskappe van die stowwe in ’n mengsel verander nie.
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