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Natuurwetenskappe

Energie-oordrag en kragte

Opvoeders afdeling

Memorandum

a) Elektriese energie/klankenergie/ligenergie.

b) Kinetiese energie/potensiële energie.

c) Ligenergie.

d) Elektriese energie/ligenergie/warmte-energie.

e) Kinetiese energie/warmte-energie.

f) Chemiese energie/warmte-energie/ligenergie.

Leerder afdeling

Inhoud

Aktiwiteit: om vorms van energie te beskryf [lu 2.3]

Benoem die volgende sketse deur die energievorm wat voorgestel word, in te vul.

(a)

Televisie

(b)

Kisduiweltjie (“Jack-in-the-box”)

(c)

Lighuis

(d)

Weerlig

(e)

Bewegende motor

(f)

Brandende vuur

(a) __________________________________________________________________

(b) _________________________________________________________________

(c) _________________________________________________________________

(d) _________________________________________________________________

(e) __________________________________________________________________

(f) __________________________________________________________________

5. Die oordrag van energie

(a) Geleiding

Geleiding vind plaas wanneer warmte deur vaste stowwe beweeg. Hou ‘n stuk draad in ‘n vlam. Wat gebeur na ‘n rukkie?

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Die hitte is deur middel van geleiding in die draad na jou hand oorgedra. Metale soos koper, yster en aluminium is beter geleiers as nie-metale soos hout, water en kurk. Sekere metale gelei hitte vinniger as ander.

Plak of teken sulke materiale hier.

Assessering

Leeruitkomste 2: Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder inligting interpreteer, bv.: interpreteer inligting deur kernidees in die teks te identifiseer, patrone in aangetekende data te vind en gevolgtrekkings te maak uit inligting in verskeie vorme (bv. prente, diagramme en geskrewe teks).

Questions & Answers

what is biology
Hajah Reply
the study of living organisms and their interactions with one another and their environments
AI-Robot
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Victoria Reply
HOW CAN MAN ORGAN FUNCTION
Alfred Reply
the diagram of the digestive system
Assiatu Reply
allimentary cannel
Ogenrwot
How does twins formed
William Reply
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
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Josephine Reply
Genetics is the study of heredity
Misack
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Misack
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Hassan Reply
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
Joseph Reply
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Yousuf Reply
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
Joseph Reply
what is the blood cells
Shaker Reply
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
Abdullahi Reply
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
What is classification
ISCONT Reply
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
Kenna Reply
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
Hilary
cell is the building block of life.
Condoleezza 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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