daya dan tenaga peta minda

7/23/2019 Daya Dan Tenaga Peta Minda

1/32

MENYIASAT DAYA DAN

TENAGA

Year 4


2/32

1.7 Standard units Unit seragam

1.5 Mass Berat

1.6 Time Masa

1.2 Area Luas

1.3 VolumeIsipadu

1.3 Solid Pepejal

1.4 Liquid Cecair

1.1 Understanding the measurement of length Memahami ukuran panjang

MeasurementUkuran

1.1 Length Panjang


3/32


4/32

LengthPanjang

TerminologyIstilah

The distance betweentwo points/ place /positionJarak di antara duatitik/tempat/kedudukan

Ways to measureCara menyukat

Measuringtape

Pita pengukur

ubitHasta

!rm spanDepaString

Tali

"ulerPembaris

Standard ToolsAlat seragam

Measuringtape

Pita pengukur"uler

Pembaris

#nitUnit

mmmm

cmsm

mm

$mkm

orrect techniqueTeknik yang betul

The eye must bedirectly abo%e the end o& ob'ectMata mesti tepat padabahagian baah hujung

benda

1.1 Understanding the measurement of length Memahami ukuran panjang


5/32

1.( !rea !uas

!rea is the amount o&space ta$en up by thesur&ace o& an ob'ect.

!uas ialah jumlah ruangyangdipenuhi pada permukaansesuatu "bjek

TerminologyIstilah

) #sing square card with asides o& 1 centimetre

Menggunakan kad segi empat dengantepinya # sentimeter

Standard unit

Unit piaai

) Square millimetre *mm(+Milimeter persegi $mm%&

) Square centimetre *cm(+'entimeter persegi $sm%&

) Square metre *m(+Meter persegi $m%&

) Square $ilometre *$m(+(il"meter persegi $km%&

1cm

1cm

,i&&erent ways to measure area)erbe*a cara untuk menyukat luas

) #sing &ormula+una rumus

!rea - length width!uas , panjang - lebar

(cm

4cm

- 4cm ( cm - cm(

3cm

3cm

) by placing uni&ormob'ectssuch as tiles0 boo$s andstamps on the sur&ace o&the ob'ects

dengan meletakkan "bjek

seperti jubin. buku dan setempada permukaan "bjek

1.2 Understanding how to calculate area Memahami cara mengira luas


6/32

olumeIsipadu

TerminologyIstilah

The amount o& space that something ta$es up

Jumlah ruang yang dipenuhi "leh sesuatu

1.3 Solid Pepejal

1.4 Liquid Cecair

2ormulaumus

Length width heightPanjang 0 lebar 0 tinggi

Standard #nitsUnit seragam

ToolsAlat

Measuring cylinder'ilinder penyukat

ml0 lml. l


a+ ta$ing the reading at the lowest part o& the meniscus. mengambil bacaan pada bahagian paling rendah pada

menis$usb+ eyes must be at the same le%el as the lowest part o& the

meniscus mata mesti sama pada aras paling rendah pada

meniskus

Standard #nitsUnit piaai

mm0 cm0 mmm1. sm1. m1

1.2/1.3 Understanding how measure the volume of solid and liquid Memahami cara mengira isipadu pepejal dan cecair


7/32

Mass)erat

TerminologyIstilah

!mount o& matter in an ob'ectJumlah benda dalam "bjek

ToolsAlat

5lectronic balance2eraca elektr"nik

6eam balance2eraca palang

7itchen scalePenimbang dapur

6athroom scalePenimbang berat

badan

Le%er balance2eraca tuas

Standard unitUnit piaai

Mgmg

gg

$gkg


1.5 Understanding how measure mass Memahami cara menyukat berat


8/32

TimeMasa

TerminologyIstilah

,uration between two e%entTemp"h antara dua ketika

Way to measureCara untuk mengukur

Sundial 0 sand cloc$ 0 candle cloc$Jam bayang. jam pasir. jam lilin

8rocess that repeats uni&ormly can beused to measure timePr"ses yang berulang secara sekatab"leh digunakan untuk menyukat masa

swinging pendulumayunan bandul

pulse rate candle denyutan nadiwater dripping titisan air

changing day and nightperubahan siang danmalam

ToolAlatan

Standard unitUnit piaai

Second 0 minute 0 hour 'aat. minit. jam

,igital cloc$0 watch0 wrist watchJam digital. jam. jam tangan

9ld cloc$Jam lama

5%ents can be used measuring time(ejadian b"leh digunakan untukmenyukat masa

1.6 Understanding how to measure time Memahami cara mengukur masa


9/32

The :mportance o& Standard #nits(epentingan unit yang piaai

&or accuracy and consistencyuntuk tepat dan k"nsisten

easy to communicate and understandingmudah untuk memahami danberk"munikasi

1.7 Realising importance of using standard units Menyedari kepentingan menggunakan unit yang piawai


10/32

MEASUREMENT SONG

When I want to measure the

length

Then I use my hand 3x


length

Then I use my handAll are in my body parts

The arm span, cubit, foot andspan

Are the (parts that use 3x

All are in my body parts

Bila nak mengukur panjang

saya guna tangan 3x


saya guna tangan

Semuanya anggota badan

Depa, hasta,kaki dan jengkal

Anggota yang (digunakan 3x

Semua anggota badan


length

Then I use the tape 3x


lengthThen I use the tape

All are the unit use

The milimetre, centimetre, metre,

and kilometre are (the unit use 3x

All are in standard unit


Saya guna pita 3x


Saya guna pita 3x

Inilah unitnya

Milimeter, sentimeter, meter,

dan kilometerUnit yang (digunakan 3x

Semua unit piaai

When I want to measure the mass

Then I use the tools 3x

The milligram and gram and the

kilogram 3x

All are the unit use

The beam and lever balance,

kitchen and the bathroom scale 3x

All are to measure mass

Bila nak mengukur jisim

Saya guna alat 3x

Miligram dan gram dan

kilogram 3x

Inilah unitnya

!he beam and le"er balan#e,

kit#hen and the bathroom s#ale3x

Semua $tuk mengukur berat
http://rds.yahoo.com/_ylt=A0S020muMedJjXYA74OJzbkF;_ylu=X3oDMTBxa2R2NHQ0BHBvcwMyBHNlYwNzcgR2dGlkA0kxMDdfMTI4/SIG=1hefgu05n/EXP=1239974702/**http%3A/images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Da%252Bschool%252Bboy%2526fr%253Dyfp-t-106%2526ei%253Dutf-8%2526js%253D1%2526x%253Dwrt%26w=176%26h=176%26imgurl=www.foundinspace.co.uk%252Fimages%252FSCHOOL-BOY_14868_1.jpg%26rurl=http%253A%252F%252Fwww.foundinspace.co.uk%252Fproducts%252FSCHOOL-BOY_14868.php%26size=15.5kB%26name=SCHOOL-BOY_14868...%26p=a%2Bschool%2Bboy%26oid=f27dd2b2cb59d9fc%26no=2%26tt=164643%26sigr=11r8vtjdf%26sigi=11kajilaj%26sigb=12s4qnklmhttp://rds.yahoo.com/_ylt=A0S020n0MOdJHnYAohGJzbkF;_ylu=X3oDMTBxbmdlajY4BHBvcwMzBHNlYwNzcgR2dGlkA0kxMDdfMTI4/SIG=1i7lr6107/EXP=1239974516/**http%3A/images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Dancient%252Begyptian%2526fr%253Dyfp-t-106%2526ei%253Dutf-8%2526x%253Dwrt%26w=400%26h=723%26imgurl=karenswhimsy.com%252Fpublic-domain-images%252Fancient-egyptian-symbols%252Fancient-egyptian-symbols-8.jpg%26rurl=http%253A%252F%252Fkarenswhimsy.com%252Fancient-egyptian-symbols.shtm%26size=144.4kB%26name=ancient-egyptian...%26p=ancient%2Begyptian%26oid=725f07be996c0298%26no=3%26tt=184967%26sigr=11lg95l1q%26sigi=12t98bfaq%26sigb=12r5gr55o


11/32

THE STORY OF TIME

CERITA TENTANG MASA

alileo alilei was the first person to use events that repeat uniformly to

measure timesuch as the pendulum clock! "rom then onwards, the wall clock and

modern clock were invented!

%alileo %alilei merupakan orang pertama menggunakan peristia yang

berulang se#ara seragam untuk mengukur masa seperti jam bandul& Daripada

situ, jam dinding dan jam moden telah di#ipta&

#and $lock #undial $lock $andle $lock

Ancient Clocs

Wall

clock #top Watch Watch

Mo!ern Cloc

%nit &'esson )

*easuring ength'*ass +efense
http://rds.yahoo.com/_ylt=A0S020pRcOVJWGUAuiuJzbkF;_ylu=X3oDMTBqcW01ZGlmBHBvcwM2NQRzZWMDc3IEdnRpZAM-/SIG=1kju4oeuf/EXP=1239859665/**http%3A/images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Dmodern%252Bclock%2526ni%253D20%2526ei%253Dutf-8%2526vm%253Dr%2526xargs%253D0%2526pstart%253D1%2526b%253D61%26w=300%26h=300%26imgurl=www.babyandmeboutique.com%252Fproducts%252Fsherriblum1%252Fimages%252FPink-and-Brown-Modern-Clock.jpg%26rurl=http%253A%252F%252Fwww.babyandmeboutique.com%252Fproducts%252Fsherriblum1%252FpinkAndbrownModernclock.htm%26size=30.6kB%26name=Pink-and-Brown-M...%26p=modern%2Bclock%26oid=a971bc1230c85b1c%26no=65%26tt=36180%26b=61%26ni=20%26sigr=12h3p74m8%26sigi=12lfbitpt%26sigb=135u3jvjghttp://rds.yahoo.com/_ylt=A0S020oWMOdJnNEA7ymJzbkF;_ylu=X3oDMTBxZ3Vkcjh0BHBvcwMxBHNlYwNzcgR2dGlkA0kxMDdfMTI4/SIG=1eb061l8e/EXP=1239974294/**http%3A/images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Dwatch%2526fr%253Dyfp-t-106%2526ei%253Dutf-8%2526x%253Dwrt%26w=155%26h=250%26imgurl=akawatches.com%252Fwatch%252Fomega-watch.jpg%26rurl=http%253A%252F%252Fakawatches.com%252F%26size=9.4kB%26name=omega-watch.jpg%26p=watch%26oid=5cc4450e8b2da9fc%26no=1%26tt=15003289%26sigr=10miej757%26sigi=114t2ika8%26sigb=12gujhfi9http://rds.yahoo.com/_ylt=A0S0204Ib.VJM5wALKCJzbkF;_ylu=X3oDMTBqZDFlYmxzBHBvcwMxNgRzZWMDc3IEdnRpZAM-/SIG=1ivdngde0/EXP=1239859336/**http%3A/images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Dsundial%252Bclock%2526js%253D1%2526ni%253D20%2526ei%253Dutf-8%2526vm%253Dr%2526xargs%253D0%2526pstart%253D1%2526b%253D1%26w=500%26h=375%26imgurl=static.flickr.com%252F21%252F32499074_e0b2dc093c.jpg%26rurl=http%253A%252F%252Fwww.flickr.com%252Fphotos%252Fmegapixel%252F32499074%252F%26size=51.1kB%26name=sundial%26p=sundial%2Bclock%26oid=7e2dad8eedade818%26fusr=Megapixel%2BEy...%26no=16%26tt=11067%26b=1%26ni=20%26sigr=11gddnkt1%26sigi=11cik09tt%26sigb=13agd922uhttp://rds.yahoo.com/_ylt=A0S020kaL.dJXXwAiFGJzbkF;_ylu=X3oDMTBydjdiN3U5BHBvcwMzMQRzZWMDc3IEdnRpZANJMTA3XzEyOA--/SIG=1jcllc3b2/EXP=1239974042/**http%3A/images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Dcandle%252Bclock%2526ei%253Dutf-8%2526fr%253Dyfp-t-106%2526xargs%253D0%2526pstart%253D1%2526b%253D21%2526ni%253D20%26w=322%26h=500%26imgurl=static.flickr.com%252F1186%252F962395582_400089ec04.jpg%26rurl=http%253A%252F%252Fwww.flickr.com%252Fphotos%252Fcuriousexpeditions%252F962395582%252F%26size=81kB%26name=Candle%2BClock%26p=candle%2Bclock%26oid=7df980b859a83a8e%26fusr=Curious%2BExpe...%26no=31%26tt=13779%26b=21%26ni=20%26sigr=11q5hupcm%26sigi=11fmpjpi5%26sigb=13d50vqg6http://rds.yahoo.com/_ylt=A0S020uGb.VJUEgBSkOJzbkF;_ylu=X3oDMTBpZm5udGl1BHBvcwM1BHNlYwNzcgR2dGlkAw--/SIG=1irnqk5jj/EXP=1239859462/**http%3A/images.search.yahoo.com/images/view%3Fback=http%253A%252F%252Fimages.search.yahoo.com%252Fsearch%252Fimages%253Fp%253Dsand%252Bclock%2526fr%253D%2526ei%253Dutf-8%2526vm%253Dr%2526x%253Dwrt%26w=83%26h=100%26imgurl=www.hscripts.com%252Ffreeimages%252Ficons%252Fmechanical%252Fhourglass%252Fsand-clock-clipart8.jpg%26rurl=http%253A%252F%252Fwww.biymed.com%252Fhaberci%253Fkategori%253D%2526kelime%253D%2526editor%253D%2526SF%253D12%26size=5.4kB%26name=sand-clock-clipa...%26p=sand%2Bclock%26oid=1ee68c75007ac4f0%26no=5%26tt=6736%26sigr=11tj4q8ui%26sigi=12e7k13d9%26sigb=12h06tue8


12/32

MENYIASAT DAYA DAN

TENAGA

Year 5


13/32

!R"#T32A+A

:;5ST:

$he Uses of nerg% (egunaan Tenaga

Why energyis needed>

Mengapa tenagadiperlukan

by li%ing things to carry out li&e processes. 5 ? mo%ing0 breathing0 growing bergerak.berna4as membesar

The Sources o& 5nergy'umber5sumber Tenaga

main source o& energysumber utama tenaga) produces light and heatmenghasilkan cahaya danhaba

&ood containsstored energy

mengadungi tenagatersimpan

SunMatahari

Mo%ing air Udara bergerak#sed to pump

water Mengepam air.

to mo%e0 boil0 melt0 or bounce non)li%ing things menggerakkan .didih.cair atau

melantun benda bukan hidup

wood0 coal0 petroleum0 natural gas(ayu. petr"l.gasasli

mo%ing or&alling water

produceenergyAir yangbergerakMenghasilkantenaga

2oodmakanan

WindAngin

2uell)ahan

api

6atteries)ateri

Waterair

,e%ice that generated electrical energy&rom

chemical energyAlat yang menghasilkan

tenaga elektrikdaripada tenaga kimia

1.1 Understanding the uses of energ% Menyedari kegunaan tenaga


14/32


15/32

5nergy can be trans&ormed &rom one &orm to anotherTenaga b"leh berubah dari satu bentuk kepada bentuk lain6

2orm o& energy)entuk Tenaga

Sound energyTenaga bunyi

@eat energyTenaga Haba

Light energy

Tenaga Cahaya5lectrical energyTenaga 3lektrik

7inetic energyTenaga (inetik

hemical energyTenaga (imia

8otential energyTenaga (eupayaan

5nergy can be trans&ormedTenaga b"leh diubahkan

a+ lighting a candle/2yalaan lilinhemical energy heat energy A light energyTenaga kimia Tenaga haba 7 Tenaga Cahaya

b+ 7ic$ing a ball / Menendang b"laChemical energy $inetic energy heat energy

Tenaga kimia Tenaga (inetik Tenagahaba

5ample o& appliance that ma$e use o&energy trans&ormation.

C"nt"h alatan yang menggunakanperubahan tenaga

a+ 5lectric iron / 'eterika elektrik 5lectrical energy heat energy Tenaga elektrik Tenaga habab+ "adio 5lectrical energy sound energy Tenaga elektrik Tenaga bunyic&Tele%ision 5lectrical energy sound energy A light energy

Tenaga elektrik Tenaga bunyi 7 tenaga cahaya

1.2 Understanding that energ% can &e transformed from one form to another Memahami bahawa tenaga boleh berubah dari satu bentuk ke bentuk yang

lain


16/32

"enewable and ;on)renewable 5nergyTenaga yang b"leh diperbaharui danTidak b"leh diperbaharui

"enewable energyTenaga yang b"leh

diperbaharui

5nergy thatcannot

be replacedTenaga yang

tidakb"leh diganti

"esources Bsolar0 wind 0biomass

&uel0water'umber5 Matahari.angin.minyak.air.bi"mass

;on)renewable energyTenaga yang tidakb"leh diperbaharui

5nergy that bereplenished when it is

used upTenaga yang b"lehdiganti

"esources )natural

gas0petroleum0coal'umber 8 gas asli.petr"leum. arang6

#se energy wisely+unakan tenagadengan bijak

@ow to sa%e energy)agaimana

menjimatkan tenaga

Some energyresources cannot bereplenishedwhen used up.'esetengah sumbertenaga tidak b"lehdiganti bila habis

To sa%e costMenjimatkan k"s

!%oid wastageMengelakkanpemba*iran

"educe pollutionMengurangkan

pencemaran.

Turn o&& thetele%ision when noone watching it.Tutup T9 jika tidakmen"nt"n6

Switch o&& thelights i&

not in use.Tutup lampu jika

tidakmengunakannya6

1.3 Understanding renewa&le anad renewa&le energ% Memahami tenaga yang boleh diperbaharui dan tidak boleh diperbaharui


17/32

Sources'umber

,ry cellSel 7ering

!ccumulator'el )asah

,ynamoDinam" Solar cellTenaga '"lar

2.1 'nowing the sources of electricit% Mengetahui sumber elektrik


18/32


19/32

8recautions!angkah

keselamatan

,anger o& mishandling electrical appliances)ahaya kecuaian mengendali peralatan elektrik

2ireApi

6urn6a$ar

5lectric shoc$(ejutan elektrik

5lectrocutionenjatan elektrik

Sa&ety precautions to

be ta$en when usingappliances!angkah5langkahkeselamatan ketikamengunakan peralatan

,o not touch electricalappliances with wet handJangan sentuh alatanelektrik dengan tangan

basah

,o not repair electricalappliances on your ownJangan baiki alatanelektrik jika tidak tahu6

Understanding the safet% precautions to &e ta(en when handling electriclappliances

Memahami langkah pencegahan yang perlu diambil semasa menggunakanperalatan elektrik


20/32


21/32

3.1 Understanding that light travels in a straight line Memahami bahawa cahaya bergerak dalam satu garis lurus

!ightCahaya

Tra%els in straight lineCahaya bergerak dalam satu garis lurus

search light &rom helicoptercahaya dari helik"pter pencari

pr";ebukti

the beam o& light &rom motorcyclealur cahaya dari m"t"sikal

the beam o& light &rom lighthousealur cahaya dari rumah api

the ray o& Sun0passing through ahole in the roo&alur cahaya Matahari melaluilubang atap rumah

@ow shadow is &ormed)agaimana bayang5bayang

terbentuk

When light is completely or

partially bloc$ed by anopaque ob'ect)ila cahaya disekat

sepenuhnya atau separuh"leh "bjek legap

Shadow &orm


22/32


23/32

Light

ahaya

an be re&lected)"leh dipantulkan

@ow >)agaimana=

#ses o& re&lection(egunaan pantulan

Side mirror o& a carCermin sisi kereta

8eriscope7aleidoscope

The light that 4alls "n"bjects >b"unces "44? the"bjects and c"mes t" y"ureyesCahaya yang jatuh ke atas"bjek melantunkannya kedalam mata

mirror/ cermin

3.2 Understanding that light can &e reflected Memahami cahaya boleh dipantulkan


24/32

@eathaba


25/32

S#; W:;, ,"= 5LL 2#5LS 299,Matahari Angin 'el kering )ahan baker Makanan

hemical energy light energy A heat energy Tenaga kimia tenaga cahaya tenaga haba

5lectrical energy light energyTenaga elektrik tenaga cahaya

5lectrical energy heat energyTenaga elektrik tenaga haba

5lectrical energy sound energy Tenaga elektrik tenaga bunyi

S9#"5S 92 5;5"


26/32

5lectrical energy $inetic energyTenaga elektrik tenaga kinetic

,"=5LL

!#M#L!T9" ,=;!M9 S9L!" 5LL @=,"95L5T":'el kering Dynam" 'el s"lar Hidr"elekrik

S5":5S :"#:T!ITA '3'II

S9#"5S 92 5L5T"::T=PU2CA5PU2CA 3!3(TI(

8!"!LL5L :"#:T!ITA '3!AI

5L5T"::T=3!3(TI(
http://images.google.com.my/imgres?imgurl=http://www.edupic.net/Images/ScienceDrawings/dry_cell.gif&imgrefurl=http://www.edupic.net/sci_gr.htm&usg=__1B4SI85uAwPdMyNiXLN40-biOxA=&h=445&w=872&sz=22&hl=en&start=15&tbnid=YcLD3F4ghhB7LM:&tbnh=75&tbnw=146&prev=/images%3Fq%3Ddry%2Bcells%26gbv%3D2%26hl%3Denhttp://images.google.com.my/imgres?imgurl=http://ladpw.org/epd/hhw/resources/illustrations/_pc/car_battery.bmp&imgrefurl=http://ladpw.org/epd/hhw/resources/illustration.cfm&usg=__Z8cz3RLSujF7sR9KwpA2hzOySVQ=&h=339&w=447&sz=19&hl=en&start=3&tbnid=M4Atzxb-lnWfxM:&tbnh=96&tbnw=127&prev=/images%3Fq%3Dcar%2Bbattery%26gbv%3D2%26hl%3Den%26sa%3DGhttp://images.google.com.my/imgres?imgurl=http://www.windpower.org/kres/dynbde04.gif&imgrefurl=http://www.windpower.org/en/kids/choose/gen/dynamo3.htm&usg=__1ZKDhMoHBsIsZ2HrC-u455xT-2U=&h=430&w=541&sz=22&hl=en&start=7&tbnid=z8rGn8tYWzWYOM:&tbnh=105&tbnw=132&prev=/images%3Fq%3Dbicycle%2Bdynamo%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DNhttp://images.google.com.my/imgres?imgurl=http://www.dorlingkindersley-uk.co.uk/static/clipart/uk/dk/sci_space/image_sci_space034.jpg&imgrefurl=http://www.dorlingkindersley-uk.co.uk/nf/ClipArt/Image/0,,239051_1584429_,00.html&usg=__iy0LJtysGy3VrfGuAoiGLBWlU2c=&h=298&w=464&sz=17&hl=en&start=9&tbnid=cWNsqIurmiwNTM:&tbnh=82&tbnw=128&prev=/images%3Fq%3Dspace%2Bsatellite%26gbv%3D2%26ndsp%3D20%26hl%3Den%26sa%3DXhttp://images.google.com.my/imgres?imgurl=http://www.yangtzeriver.org/threegorges_dam/pic/1.jpg&imgrefurl=http://3gorgesdam.blogspot.com/&usg=__P5RijOZ8A7T71oaptwRQBAb3cqQ=&h=408&w=610&sz=264&hl=en&start=7&tbnid=MtlgK4MYvjhu0M:&tbnh=91&tbnw=136&prev=/images%3Fq%3Dhydroelectric%2Bdam%26gbv%3D2%26hl%3Den


27/32

* Song ? This old man+

Light oh light ahaya oh cahayaLight tra%els ahaya boleh gera$*ight travels in a straight line +aha%a &ergera( lurus*ight travels in a straight line +aha%a &ergera( lurusThere&ore it can &orm shadow :a membentu$ bayang

Light oh light ahaya oh cahayaLight re&lects ahaya boleh pantul*ight can &e reflected +aha%a &oleh dipantul(an*ight can &e reflected +aha%a &oleh dipantul(anan see image in mirror 6oleh lihat dicermin

L:


28/32

MENYIASAT DAYA DAN

TENAGA

Year 6


29/32

:;5ST:

M5;=:!S!T ,!=! ,!; T5;!

29"5DA@A

5&&ects(esan

oncept("nsep

! push or a pullT"lak atau tarik

an mo%e a stationary ob'ect)"leh gerakkan "bjek yang

pegun

annot be seen but thee&&ects can be &eltTidak b"leh dilihat tetapib"leh dirasa

hanges the shapes o& an ob'ectMengubah bentuk "bjek

!n ob'ect become squeeCed0stretched0 bent0 twisted orsquashed


30/32

2":T:9;+3'3A2

5&&ects o& &riction(esan geseran

8roduces heatHasilkan haba

9pposes motion)erlaanan gerakan

auses wear and tearMenyebabkan hausdan k"yak

Slows down and stops amo%ing ob'ect

Memperlahankan danmemberhentikan "bjek yangbergerak

,isad%antages

(ekurangan

!d%antages(elebihan

2actors that a&&ect &rictionakt"r yang menyebabkangeseran

ondition o& thesur&ace(eadaan

permukaan

Weight o& theob'ect)erat "bjek

Ways to reduce &rictionCara kurangkan geseran

#se rollers or marbles+una penggelek atauguli

Smoothen sur&acesPermukaan licin

#se oil0 wa0 grease0talcumpowder0 air cushion+una minyak. pelicin.gris.

bedak angi. pakudara

1.3 ,nal%sing friction Analisa geseran


31/32

Mo%ementPergerakkan

Speed!aju

alculation o& speedPengiraan laju

@ow &ast an ob'ect mo%es)erapa laju "bjek bergerak 2ormula ?

umus

Seed - ,istance Time!aju - Jarak Masa

! &aster ob'ect tra%elsa longer distance in agi%en time


32/32

daya dan tenaga peta minda

Documents