5/22/2018 Propeller

1/19

Propeller..?June 30, 2011

smkpp2011 Solar Boat1 Comment

Bagaimanakah hendak menghasilkan propeller yang sesuai dengan bot yang telah direka cipta..?

Propeller yang ada di pasaran mempunyai bentuk yang berbeza. Berikut adalah contoh propelleryang dikaji..

http://bpmyscience4smkpp.wordpress.com/2011/06/30/propeller/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/06/30/propeller/#commentshttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300058.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300057.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300055.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300054.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300053.jpghttp://bpmyscience4smkpp.wordpress.com/2011/06/30/propeller/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/06/30/propeller/#comments

5/22/2018 Propeller

2/19

Parallel or Series.. ?June 30, 2011

smkpp2011 Solar BoatLeave a comment

Penyambungan litar dalam pemasangan solar panel sangat penting kerana ia mempengaruhi

kuasa yang akan dibekalkan kepada motor. Dalam penyambungan litar, pemasangan secara

bersiri atau selari digunakan. Pemasangan litar secara selari memberikan jumlah kuasa yang

lebih besar dibandingkan dengan jumlah kuasa yang diberikan oleh pemasangan litar secara

bersiri.

Ekseperimen telah dijalankan untuk menguji litar yang memberikan kuasa yang lebih besar.

http://bpmyscience4smkpp.wordpress.com/2011/06/30/parallel-or-series/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/06/30/parallel-or-series/#respondhttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300039.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300044.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300060.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300059.jpghttp://bpmyscience4smkpp.wordpress.com/2011/06/30/parallel-or-series/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/06/30/parallel-or-series/#respond

5/22/2018 Propeller

3/19

Hasil eksperimen, didapati litar selari memberikan kuasa yang lebih besar dibandingkan dengan

kuasa yang dibekalkan oleh litar bersiri. Oleh itu, dalam pemasangan solar panel ini, perlu

dilakukan pemasangan litar secara selari untuk memaksimumkan kuasa yang akan dibekalkan

kepada motor.

Buoyancy ForceJune 30, 2011

smkpp2011 Solar BoatLeave a commentPengujian daya keapungan telah dijalankan. ujuan eksperimen ini adalah untuk mengenalpasti

bahan utama yang sesuai untuk dibuat boat.

Ekperimen dimulakan dengan menggunakan polisterine !recycle daripada kotak polisterine ink

printer"

http://bpmyscience4smkpp.wordpress.com/2011/06/30/buoyancy-force/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/06/30/buoyancy-force/#respondhttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300043.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300042.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300041.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300040.jpghttp://bpmyscience4smkpp.wordpress.com/2011/06/30/buoyancy-force/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/06/30/buoyancy-force/#respond

5/22/2018 Propeller

4/19

Polisterine

#eterusnya, menggunakan kertas $oam

kertas foam

#eterusnya, menggunakan board $oam !skate board"

http://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300046.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300045.jpg

5/22/2018 Propeller

5/19

skate board

#eterusnya, menggunakan tube getah, lidi, polisterine bekas makanan

lidi

paip getah

#emua bahan asas yang dipilih, mempunyai daya keapungan yang tinggi.

http://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300048.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300050.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300051.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300047.jpg

5/22/2018 Propeller

6/19

Perua!an Ja"ual#ay 10, 2011

smkpp2011 Journal,Solar Boat Leave a comment

%inggu peperiksaan pelajar tingkatan & telah bermula semalam !'( %ei )'**", oleh itu proses

pembuatan boat akan ditunda ke minggu selepas peperiksaan !)+ )- %ei )'**".

Perincan$an 1#ay %, 2011

smkpp2011 Journal,Solar Boat Leave a comment

Tarikh : 04/05/2011

1. &'()B'*+( -*)#(

erodinamik / bentuk boat mestilah tirus supaya daya aerodinamik dapat dihasilkan. 0ni

akan menyebabkan boat yang dihasilkan bergerak membelah air dan angin dengan lebih

mudah.

Bentuk tirus

http://bpmyscience4smkpp.wordpress.com/2011/05/10/perubahan-jadual/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/journal/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/05/10/perubahan-jadual/#respondhttp://bpmyscience4smkpp.wordpress.com/2011/05/09/perbincangan-1/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/journal/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/05/09/perbincangan-1/#respondhttp://bpmyscience4smkpp.files.wordpress.com/2011/05/15.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/06/p6300052.jpghttp://bpmyscience4smkpp.wordpress.com/2011/05/10/perubahan-jadual/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/journal/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/05/10/perubahan-jadual/#respondhttp://bpmyscience4smkpp.wordpress.com/2011/05/09/perbincangan-1/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/journal/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/05/09/perbincangan-1/#respond

5/22/2018 Propeller

7/19

Eksperimen akan dijalankan untuk mengesahkan ketepatan kenyataan ini.

2. P'*/S*)* SL)& P)*'L

Bersiri / menyusun sel secara bersiri akan menyebabkan motor dapat mengumpulkan

1oltage yang tinggi.

Litar bersiri

Eksperimen akan dijalankan untuk mengesahkan kenyataan ini.

3. P'*J)*))* )&S 'L'(+&(

Penjanaan arus elektrik

PROSES :

#olar panel !photo1oltaic" / * peralatan yang akan menukar sinar cahaya matahari terus

kepada tenaga elektrik.

Pengumpulan tenaga cahaya oleh solar panel akan maksimum sekiranya solar panel

diarahkan (' darjah ke arah cahaya matahari

enaga elektrik yang terhasil akan ditukar kepada tenaga kinetik melalui motor yang

digunakan. enaga kinetik akan menggerakkan motor tersebut dan menyebabkan kipas boat

ber$ungsi. 0ni akan menyebabkan boat bergerak Pergerakan boat ke hadapan 2 belakang dipengaruhi oleh litar yang dihasilkan.

. P'#L)* #)+'&)L

Prinsip keapungan / bahan yang digunakan untuk menghasilkan boat mestilah bahan

yang mempunyai daya keapungan yang tinggi

0ni akan menyebabkan boat yang direkacipta boleh terapung di permukaan air

http://bpmyscience4smkpp.files.wordpress.com/2011/05/33.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/23.jpg

5/22/2018 Propeller

8/19

Buoyancy

Eksperimen akan dijalankan untuk mengesahkan kenyataan ini.

. P'#L)* (P)S

3ekabentuk kipas !(' darjah" / sesuai untuk dipasang secara mengiring

3ekabentuk kipas !sudut belahan angin" / sesuai untuk dipasang secara bersudut

4in$s 5 Fli$!t#ay 6, 2011

smkpp2011 Solar Boat7li$!t,li7t,8in$sLeave a comment

references : MOTION, FORE! "N# ENER$% &M $R"' (I))* N"TION") $EO$R"+(%

P&-C*9 LF+

Producing lift

ccording to the 4e5ton6s third la5 o$ motion, $or e1ery action $orce there is an e7ual but

opposite reaction $orce. he 5ing e8erts a do5n5ard action $orce on the air. #o the air must e8ert

an up5ard reaction $orce on the 5ing. his reaction $orce is the li$t that enables paper airplanes

and jet airlines to $ly.

)&PL)*' 4*9S

http://bpmyscience4smkpp.wordpress.com/2011/05/07/wings-flight/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/tag/flight/http://bpmyscience4smkpp.wordpress.com/tag/lift/http://bpmyscience4smkpp.wordpress.com/tag/wings/http://bpmyscience4smkpp.wordpress.com/2011/05/07/wings-flight/#respondhttp://bpmyscience4smkpp.files.wordpress.com/2011/05/lift.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/43.jpghttp://bpmyscience4smkpp.wordpress.com/2011/05/07/wings-flight/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/tag/flight/http://bpmyscience4smkpp.wordpress.com/tag/lift/http://bpmyscience4smkpp.wordpress.com/tag/wings/http://bpmyscience4smkpp.wordpress.com/2011/05/07/wings-flight/#respond

5/22/2018 Propeller

9/19

9i$t can be increased by increasing the size or sur$ace area o$ the 5ing. larger 5ing is able to

de$lect more air do5n5ard.

A glider flies at low speeds and uses long wings that have a large surface area to provide the lift

it needs

A large cargo plane that carries heavy loads needs large wings to provide a great deal or lift

A plane designed to fly at high speeds, such as a jet fighter, can have small wings

B&-S: 4*9S

bird6s 5ing pro1ides li$t in the same 5ay that an airplane 5ings does.

http://bpmyscience4smkpp.files.wordpress.com/2011/05/jet-fighter-2.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/cargo-plane.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/glider.jpg

5/22/2018 Propeller

10/19

A pheasant have short, rounded wings that enable them to take off quickly and make sharp

turns

A seabird has long, narrow wings, like the wings of a glider, that help them glide long distances

http://bpmyscience4smkpp.files.wordpress.com/2011/05/seabirds.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/pheasant.jpg

5/22/2018 Propeller

11/19

Falcon, which can fly at high speeds, has small, narrow, tapered wings like those on a jet fighter

4!y "o o;ects 7loat?#ay 6, 2011

smkpp2011 Solar Boatarc!ime"es< principle, oats, uoyant 7orce,7loats 1 Comment

references : MOTION, FORE! "N# ENER$% &M $R"' (I))* N"TION") $EO$R"+(%

+' B/)*+ F&C'

http://bpmyscience4smkpp.wordpress.com/2011/05/07/why-do-objects-float/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/tag/archimedes-principle/http://bpmyscience4smkpp.wordpress.com/tag/boats/http://bpmyscience4smkpp.wordpress.com/tag/buoyant-force/http://bpmyscience4smkpp.wordpress.com/tag/floats/http://bpmyscience4smkpp.wordpress.com/2011/05/07/why-do-objects-float/#commentshttp://bpmyscience4smkpp.files.wordpress.com/2011/05/falcon1.jpghttp://bpmyscience4smkpp.wordpress.com/2011/05/07/why-do-objects-float/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/tag/archimedes-principle/http://bpmyscience4smkpp.wordpress.com/tag/boats/http://bpmyscience4smkpp.wordpress.com/tag/buoyant-force/http://bpmyscience4smkpp.wordpress.com/tag/floats/http://bpmyscience4smkpp.wordpress.com/2011/05/07/why-do-objects-float/#comments

5/22/2018 Propeller

12/19

ceberg

http://bpmyscience4smkpp.files.wordpress.com/2011/05/iceberg.jpg

5/22/2018 Propeller

13/19

!he buoyancy force on egg

hink about the $orces that are acting on you as you motionless on the sur$ace o$ a pool or lake.

:ou are not mo1ing, so according to 4e5ton6s second la5 o$ motion, the $orces on you must be

balanced. Earth6s gra1ity is pulling you do5n5ard, so an up5ard $orce must be balancing your

5eight.

4)+ C)S'S +' B/)*+ F&C'?

!he buoyant force

he buoyant $orce is caused by the pressure that is e8erted by a $luid on an object in the $luid.

he 5ater e8erts pressure e1ery5here o1er the sur$ace o$ the object. 3ecall that the pressure

e8erted by a $luid has t5o properties. One is that the direction o$ the pressure on a sur$ace is

al5ays perpendicular to the sur$ace. he other is that the pressure e8erted by a $luid increases

as you go deeper into the $luid.

http://bpmyscience4smkpp.files.wordpress.com/2011/05/buoyant.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/egg.jpg

5/22/2018 Propeller

14/19

S*(*9 )*- FL)+*9

!he fish floats because the buoyant force on it balances its weight" !he rock sink because the

buoyant force acting on them is not large enough to balance their weight"

he buoyant $orce pushes an object in a $luid up5ard, but gra1ity pulls the object do5n5ard. 0$ the

5eight o$ the object is greater than the buoyant $orce, the net $orce on the object is do5n5ard and

it sinks. 0$ the buoyant $orce is e7ual to the object6s 5eight, the $orces are balanced and the object

$loats.

C)*9*9 +' B/)*+ F&C'

http://bpmyscience4smkpp.files.wordpress.com/2011/05/aquarium.jpg

5/22/2018 Propeller

15/19

#hen the aluminium is flattened into a thin, curved sheet, the buoyant force is large enough

that the sheet floats"

Buoyant $orce does depend on the shape o$ the object. he $luid e8erts up5ard pressure on the

entire lo5er sur$ace o$ the object that is in contact 5ith the $luid. 0$ this sur$ace is made larger,

then more up5ard pressure is e8erted on the object and the buoyant $orce is great.

B)+S

Floats

ccording to rchimedes6 principle, increasing the 5eight o$ the 5ater that is displaced increases

the buoyant $orce.

) 7e8 in7o aout t!e aero"ynamic..

http://bpmyscience4smkpp.wordpress.com/2011/05/07/a-few-info-about-the-aerodynamic/http://bpmyscience4smkpp.files.wordpress.com/2011/05/boats.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/oil-tanker.jpghttp://bpmyscience4smkpp.wordpress.com/2011/05/07/a-few-info-about-the-aerodynamic/

5/22/2018 Propeller

16/19

#ay 6, 2011

smkpp2011 Solar Boataero"ynamic, spee"Leave a comment

1. S)LFS =+!e 7astest 7is! in t!e ocean>

$ailfish %speed & ''( kph ) *+ mph

he characteristics o$ the sail$ish are as $ollo5s /

;

5/22/2018 Propeller

17/19

Pectoral $ins / shark do not ha1e gas

Falcon %$peed & 01( kph ) 1(( mph

he characteristics o$ the $alcon are as $ollo5s /

9ong narro5 5ings / built $or speed !pointed 5ings"

9ong narro5 tails / built $or turning capability

#lim birds 5ith a small head

. S4)LL4 =+!e ir"s o7 7ree"om>

http://bpmyscience4smkpp.files.wordpress.com/2011/05/falcon.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/440px-parts_of_a_shark-svg.png

5/22/2018 Propeller

18/19

$wallow %$wiftness of Flight

he characteristics o$ the s5allo5 are as $ollo5s /

=orked tail > slender body

;ery short legs 5ith small $eet

#mall bill

9ong > pointed 5ings

#lender, streamlined bodies 5ith short necks

. C''+) =+!e 7astest lan" mammal>

2heetah %$peed & +( 3 '(( kph

http://bpmyscience4smkpp.files.wordpress.com/2011/05/cheetah2.jpghttp://bpmyscience4smkpp.files.wordpress.com/2011/05/swallow.jpg

5/22/2018 Propeller

19/19

he characteristics o$ the cheetah are as $ollo5s /

slender body, a small head, long legs / ideal $or speed

ithout retractable cla5s / allo5s the cla5s to al5ays be e8posed !makes $or better

traction 5hen running"

ail / to help maintain balance at high speeds and during 7uick turns

Post #ortem +aklimat Solar Boat#ay 6, 2011

smkpp2011 Journal,Solar Boat Leave a comment

2 )pril 2011 30 )pril 2011 @

*. &evie8 2010 @

+ !O)"R O"T +RE!ENT"TION :

@urang memuaskan

@onsep ino1asi dan penyampaian kurang berkesan

)'** / mementingkan konsep pemasaran > ino1asi

+ !O)"R O"T: @urang ino1asi

iada logo BP dan sekolah

Persiapan tidak lengkap

da kumpulan yg bt ho1ercra$t

*. Solar Boat C!allen$e 2011 @

!O)"R O"T R"E:

Auna bahan kitar semula

%erupakan hasil reka cipta tersendiri

rekacipta yang kukuh, stabil dan sesuai

%engintegrasikan konsep sains dan $ungsi aerodinamik dalam rekacipta

%empunyai logo BP, logo sekolah dan guide 5ire

idak mempunyai bateri

#olar panel boleh diubahsuai kedudukan

Propeller / use the recycle materials

+RE!ENT"TION:

%asa / *' minit !persediaan, penyampaian, cleaning"

#lide / bstrak, Objekti$, eori #ains, 3eka Bentuk 0no1asi, Percubaan >

Penambahbaikan"

3eka bentuk ino1asi !yang telah dicipta"

4ilai komersial

Pemasaran > pembungkusan produk

=ont / ni1erse &C line 2 rial

#ize $ont / *) 2 *&

http://bpmyscience4smkpp.wordpress.com/2011/05/07/post-mortem-taklimat-solar-boat/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/journal/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/05/07/post-mortem-taklimat-solar-boat/#respondhttp://bpmyscience4smkpp.wordpress.com/2011/05/07/post-mortem-taklimat-solar-boat/http://bpmyscience4smkpp.wordpress.com/http://bpmyscience4smkpp.wordpress.com/category/journal/http://bpmyscience4smkpp.wordpress.com/category/solar-boat/http://bpmyscience4smkpp.wordpress.com/2011/05/07/post-mortem-taklimat-solar-boat/#respond