Spm 2009 C12 Decision Making

SPM 2008

12.b. Decision making / Membuat keputusan Study diagram 12.1 and 12.2. Based on safety features, choose the most suitable vehicle for your own use. Kaji rajah 12.1 dan 12.2 Berdasarkan kepada cirri-ciri keselamatan, pilih kenderaan yang paling sesuai untuk kegunaan anda. Explain your choice based on the following; Terangkan jawapan anda berdasarkan perkara berikut;

i. Aim of choice. Tujuan pemilihan. Answer. To choose the vehicle which has more safety features. Untuk memilih kenderaan yang mempunyai lebih ciri eselamatan.

ii. Comparison between the safety features of the two vehicles.. Perbandingan ciri keselamatan antara dua kenderaan.. Answer. Diagram 12.1 1. Has air bag.

Diagram 12.1 1. No air bag.

Mempunyai bag udara

2. Small front bumper.

Tiada bag udara

2. Big front bumper.

Bumper hadapan kecil.

3.Longer front crumple zone.

Bumper hadapan besar

3.Short

front crumple zone. Zone remuk depan pendek.

Zone remuk depan panjang

4. Has seat belt. Mempunyai tali pinggang keselamatan. Answer. 12.a. ( Problem solving – Penyelesaian masalah ) 1. A submarine has ballst tanks / diagram Kapal selam mempunyai tangki ballast / rajah 2. The ballast tanks are filled with water / diagram Tangki ballast diisi dengan air / rajah 3. Apabila the weight of submarine is more than the upthrust @ bouncy force , the submarine will sink. Apabila berat kapal selam lebih besar dari daya tujah ke atas @ daya keapungan , kapal selam akan tenggelam. 4. To move forward, a submarine rotates its propeller @ fan. Untuk bergerak ke hadapan, kapal selam memutarkan bebalingnya@ kipas.

4. Has seat belt. Mempunyai tali pinggang keselamatan.

iii.Choose the best vehicle according to its safety features. Pilih kenderaan terbaik berdasarkan cirri keselamatannya.

State one safety features of the vehicle that you have chosen and explain its uses. Nyatakan satu ciri keselamatan pada kenderaan yang telah anda pilih dan terangkan kegunaanya. Answer. 1st Alternative the best one safety vehicle features Diagra Has air bag m 12.1 Has seat belt Long front crumple zone

explain its uses Can protect the driver during collision. Can protect the driver during collision. Extend the time of collision. Memanjang masa perlanggaran

2nd Alternative the best vehicle

Diagram 12.2 Excellence by reDOING

one safety features Has seat belt

explain its uses Can protect the driver during collision. Page 32

C12 : Decision Making / Membuat Keputusan. 1. ? ( dry cells @ lead-acid accumulator ) 2. ? ( alkaline batteries @ silver oxide-mercury batteries ) 3 ? ( nickel-cadmium batteries ) 4. 1. can be recharged / boleh dicas-semula 5.1 small 6.1 produce small current /menghasilkan arus yg kecil 7.1 cheap / murah

Spm 20xx

4.2 cannot be recharged / tidak boled dicas-semula 5.2 big 6.2 produce large current / menghasilkan arus yg besar 7.2 expensive / mahal

Exercise No. 3 1.a. state the advantage and weakness of using dry cells and lead-acid accumulators Nyatakan kebaikan dan kelemahan menggunakan bateri kering dan akumulator asid-plumbum. Type of cell

It advantage Kebaikan menggunakannya

It weakness Kelemahan menggunakannya

small

Produce small current

Produce large current

big

Dry cell Sel kering

lead-acid accumulator s

b. i. state the type of battery should be used Nyatakan jenis bateri yang seharusnya digunakan untuk objek tersebut. Object / Objek

Suggested type of battery and the reson. Cadangan jenis bateri dan alasannya.

lead-acid accumulators because it produce large current Lorry / lori

Dry cells because it small Calculator / kalkulator

Nickel - cadmium because it can be recharged

handphone / telefon bimbit

ii..

Choose the best battery for toy car.Give the reason of your suggestion. Pilih jenis bateri terbaik untuk kereta mainan.Beri alasan anda memilih bateri tersebut. Alkali battery Choosen type of battery : ……………………………………………………………………………………………. Small size Reason : …………………………………………………………………………………………………………………… Excellence by DOING

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C12 : Decision Making / Membuat Keputusan. 1. 2 hard / keras 2.1 easy to corrosion / mudah berkarat 3. brass / loyang 4. bronze / gangsa 5. duralumin / duralumin 6. pewter / piuter 7. steel / keluli Exercise No. 4 1.a. Compare between iron and steel. Bandingkan antara besi dan keluli Iron besi

1.2 harder / lebih keras 2.2 resistant to corrosion / tahan dari berkarat 3.3 shinning surface / permukaan berkilau 4.4 light / ringan 15. aluminium + copper / aluminium + kuprum 16. tin + lead / timah + plumbum 17. iron + carbon / besi + karbon

Steel keluli

b. i. State the alloy chosen for that purpose and give the reason . Nyatakan aloi yang dipilih untuk kegunaan tersebut dan alasan tentang pemilihan tersebut.. Object objek

Choosen alloy and the reason . Aloi yang digunakan dan alasanya.

Survenier / cenderahati

Bridges / jambatan

scissors / gunting

ii. Choose the alloy chosen to make a plane. .Give the reason of your choice. Pilih aloi untuk membuat badan kapal terbang..Beri alasan anda memilih aloi tersebut. Chosen type of alloy : …………………………………………………………………………………………………. Explain how to make this alloy : ………………………………………………………………………………….. Reason : …………………………………………………………………………………………………. Excellence by DOING

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