skema pppa sains spm k2 baru
Post on 14-Apr-2018
263 Views
Preview:
TRANSCRIPT
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
1/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
SKEMA JAWAPAN(PPPA SPM 2012)Section A/Bahagian A
Question Mark Scheme SubTotalmark
1. Able to plot a graph correctly1. 5-6 points are transferred correctly -2 m
2. 3- 4 points are transferred correctly -1 m3. Smooth graph -1 m
2 + 1 3
(b) Able to state the relationship between the temperature of the solution and
time
1 1
Sample answer:
1. The temperature of the solution increases with time//
Suhu larutan bertambah dengan masa
2. When the time increases the temperature of the solutionincreases.Apabila masa bertambah suhu larutan bertambah.
(c) Able to state the boiling point of the solutionfrom the graf:
1 1
Boiling point / takat didih = 102 C
5
1 1
100
80
60
40
20
2 4 60 8 10
Temperature/Suhu (0C )
Time / minuteMasa / min it
x
x
x
x
x x102
3.3 = 0.1
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
2/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
2.(a) Distance ofx/Jarakx = cm
2.(b) Image drawn must have the following criteria:
imej yang dilukis mesti memenuhi criteria berikut:
1. laterally inverted /Sonsang sisi( )2. same size/ Saiz sama( )3. object distance = image distance/jarak imej = jarak objek ( )
3 ( ) = 1m
1 1
2(c) Able to state one characteristic of image formed by the plane mirror.
1. same size with object/sama saiz dgn ojek
2. laterally inverted/sonsang sisi
3. virtual/maya
4. distance of image = distance of object
Jarak imej = jarak objek
1 1
2(d) Able to state the time shown by the clock 1 1
Time shown = 01.502(e) Able to mark ( ( ) in Diagram 2.3 which form an image with the
same characteristics as the image formed in Diagram 2.1 .
1
5
3(a) Hypothesis- able to relate manipulated variable and responding Variable 1 1
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
3/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
Sample answers:
1. Rubber M is harder /more elastic than rubber NGetah M lebih keras/elastic berbanding getah N
(b)Able to state the is the manipulated variable for the experiment 1 1
Sample answers:
1. Type of rubber
Jenis getah
2. Rubber M and rubber N
Getah M dan getah N
(c)Able to state which strip of rubber is vulcanised rubber? 1 1
Sample answers:1. Rubber M
Getah M(d) Able to calculate the increase in length of rubber N because of the 100 g
weight.
1 1
(13.510.0) cm = 3.5 cm
(e) Able to state the operational definition of vulcanised rubber 1 1
Sample answers:
1. Vulcanised rubber is the rubber that will lengthen less and
will return to its initial length after the weight is removed.
Getah tervulkan adalah getah yang kurang pemanjangannya
dan akan kembali kepada panjang asal selepas pemberat dialihkan
2. Vulcanized rubber is a substance that does not show
any change in length when the weight (100g) removed
Getah tervulkan adalah bahan yang tidak menunjukkan sebarang
perubahan panjang apabila pemberat(100g) dialihkan
5
4. a) Able to state the controlled variable correctly 1 1
1. size of rod /metal//
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
4/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
saiz rod /logam
2. Type of plasticine//jenis plastisinb) Able to state one observation 1 1
Sample answers:1. Dent of Y is deeper// Lekukan Y lebih dalam2. Dent of X is more shallow // Lekukan X lebih cetek
c) Able to state the reason for the observation 1 1Sample answers:1. The pressure exerted on Y is more than X//Tekanan yang
dikenakan ke atas Y adalah lebih berbanding X
2. Xand Yprovide different pressure //X dan Y memberikan tekanan yang berbeza
d) Able to measured and record the depth of dent Y. 1 1
Y= ..cm
e) Able to predict the depth of dent if the weight at Y is 1500g 1 1
Y= any value that less than 1.8 cm//any value that less than the answer at (d)
5
Section B/Bahagian B
1.8 = 0.1
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
5/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
Question Mark Scheme Sub
Mark
Total
Mark
5 (a) Able to name the cell division processAnswer
Mitosis //Mitosis
1
(b) Able to fill up the boxes in right sequenceAnswer
1
(c) Able to state the number of daughter cellAnswer
2
1
(d) Able to state the important of cell division
Sample answer
1. Mitosis produces new cells to replace worn out or dead cell in ourbody
//Mitosis membentuk sel-sel baru untuk menggantikan sel-sel atau tisu-
tisu yang rosak atau mati.
2. Mitosis produces new cells for growth //Mitosis membentuk sel-sel baru untuk proses pertumbuhan.
3. Mitosis produces daughter cells which are the exact copies of the parentcell. This ensure that the daughter cells carry out the same functions as
the parent cells.//
Mitosis memastikan bilangan kromosom pada sel anak sama dengan
bilangan kromosom pada sel induk.
[Any one]
1
(e) Able to complete the diagram
Sample answer
tt, Tt; Tt
1
(f) Able to state the process Z
Answer
Process Z : Fertilization // Persenyawaan
1
Total 6
R S Q P
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
6/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
6(a) Able to state the name of process
Answer
Haber Process // Proses Haber
1
(b) Able to state the ratio
Answer
1:3
1
(c) Able to state the chemical name
Answer
Sulphuric acid //Asid Sulfurik
1
(d) Able to state the effect
Answer
Eutrophication /algal bloom
Eutrofikasi/ alga bloom
(e) Able to state reaction of heat
Answer
Reaction release heat // Tindak balas yang membebaskan haba.
1
(f) Able to state the chemical name
Answer
Carbon dioxide //Karbon dioksida
1
Total 6
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
7/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
7(a) Able to fill up the name of microorganism
Answer
R : Virus // Virus S : Algae // Alga T : Protozoa // Protozoa
1+1+1 3
(b) Able to draw ( ) to match the type of microorganism and uses
Answer
Microorganisms
Mikroorganisma
Uses in industry
Kegunaan
Yeast
Yis
Making vaccine and useful to
digest food in human intestine
Menghasilkan vaksin dan baik
dalam system penghadaman
manusia
Bacteria
Bakteria
Use to produce antibiotics such as
penicillin
Menghasilkan antibiotic seperti
penicillin
Fungi
Kulat
Making bread, soya sauce and
alcoholic drinks
Membuat roti, kicap dan
minuman beralkohol
1+1+1
Total
3
6
8(a) Able to fill up the boxes with the correct word equationAnswer 1
(b) Able to label the part of molecule of soap
Answer
X : hydrocarbon tail // ekor (hidrokarbon)
Y : ionic head // kepala (ionic)
1
(c) Able to state the part of molecule of soap that dissolve in grease
Answer
Hydrocarbon tail // Ekor hidrokarbon
1
Sabun glycerol
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
8/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
(d) Able to explain the cleaning process
Answer1. Hydrocarbon tail is soluble in grease, while ionic head is soluble in water. //
Ekor larut dalam gris/kotoran, manakala kepala larut dalam air.
2. In the cleaning process, soap is reduce the surface tension of water, wettingthe surface of the dirty clothes. //
Dalam proses pencucian, sabun menrendahkan sifat ketegangan air.
3. The hydrocarbon tail of the soap molecule will push itself into the greasefilled with dirt particles while the ionic head will remain in the water.//
Ekor hidrokarbon akan menolak masuk ke dalam gris/minyak/kotoran
sementara kepala ionic akan berada dalam air.
4. The water attracts the ionic head so that the grease is lifted off the surface.//Kepala ionik akan menarik molekul air, maka kotoran akan tertanggal.
[Any two]
2
Total 68 (a)(i) Able to state the type of stroke
Answer
Exhaust stroke //Lejang ekzos
1
(ii) Able to state the type of stroke
Answer
Stroke P/Power stroke //Lejang P/Lejang kuasa
1
(b) Able to fill up the boxes with the correct sequence of stroke
Answer
1
(c) Able to mark ( ) the correct vehicleAnswer
1
QPSR
P Q
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
9/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
(d) Able to state the energy changes
Answer
Chemical energyheat energykinetic energy//
Tenaga kimia - tenaga haba tenaga kinetic
1
(e) Able to state the differences between four stroke petrol engine and fourstroke diesel engine
Answer
1. Petrol engine takes in mixture of petrol and air at induction stroke butdiesel engine takes in air only //
Enjin petrol mengambil campuran petrol dan udara di lejang
pengambilan tetapi enjin diesel mengambil udara sahaja.
2. Petrol engine use the spark plug ignites the fuel at power stroke whilediesel engine the diesel is injected by the injector and ignited by the
compressed heat.//
Enjin petrol menggunakan palam pencucuh untuk menyalakan bahan
api pada lejang kuasa manakala enjin diesel, diesel disuntik oleh
pemancit dan dinyalakan oleh haba yang dimampatkan .
1
Total 6
10(a) Able to relate the manipulated variable with the responding variable.
Sample answers
1.The presence of another metallic element in a metal increase the corrosion
resistance.// Vice Versa//
Kehadiran unsur logam lain dalam logam meningkatkan rintangan
kakisan.//Sebaliknya
2. Alloy is more resistant to corrosion.//Vice Versa//
Aloi lebih tahan terhadap kakisan// Sebaliknya
3. Pure metal is not resistant to corrosion//Vice versa//Logam tulen tidak
tahan terhadap kakisan//Sebaliknya
1
(b) (i) Able to state the aim of experiment
Sample answers
1. To study the corrosion resistance between an alloy and an iron //
Mengkaji ketahanan terhadap kakisan diantara aloi dan besi.
2. To study the rate of corrosion between an alloy and an iron // Mengkaji
kadar kakisan diantara aloi dan besi.
1
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
10/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
(ii) Able to state any two variablesSample answer
Manipulated variable
1. Type of nail //Jenis paku2. Iron nail and stainless steel nail//Paku besi dan paku keluli tahan karat.
Responding variable
1. The rate of corrosion//Kadar kakisanConstant variable
1. Volume/concentration of sodium chloride solution//Isipadu/kepekatanlarutan Natrium Klorida
[Any two variable]
2
(iii) Able to list all the apparatus and materials
Iron nail, stainless steel nail, sodium chloride solution, test tube //
Paku besi, paku keluli tahan karat, larutan natrium klorida, tabung uji.
1
(iv) Able to list at least 4 steps for the method of the experiment
Sample answer
1. Clean an iron nail and a stainless steel nail with a sand paper and rinsed
with distilled water. //
Bersihkan paku besi dan paku keluli tahan karat dengan kertas pasir dan
dibilas dengan air suling.
2. The nails are put in two test tubes.//Kedua-dua paku dimasukkan ke dalam tabung uji.
3. Place 10 cm3 of concentrated sodium chloride solution into each test
tube.//
Masukkan 10 cm3 Larutan Natrium Klorida pekat ke dalam setiap tabung uji.
4. After three days,observe and record the corrosion of the nails .//
Selepas tiga hari, perhati dan rekod kakisan pada paku-paku tersebut.
4
(v) Able to construct a table which consist of manipulated variable and
responding variable
Sample answer
Type of nail //Jenis paku Rusting/not rusting
Berkarat/tidak berkarat
Iron nail //paku besi
Stainless steel nail//
Paku keluli tahan karat
1
Total 10
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
11/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
11(a) The importance of preservation and conservation of the environment.
Kepentingan dalam pemeliharaan dan pemuliharaan alam sekitar.
1. Provides clean and healthy environment
Menyediakan persekitaran yang bersih dan sihat.
2. Reduces the problems of environmental pollution
Mengurangkan masalah-masalah akibat dari pencemaran persekitaran.
3. prevents extinction of plant and animal species
Mengelakkan pelupusan spesis tumbuhan dan haiwan.
4. Prevents the loss of habitats of living organisms
Mengelakkan kehilangan habitat bagi organisma hidup
5. Mengelakkan peningkatan suhu bumi
Prevents the increase of the earth temperature
6. Mengelakkan penyakit
Prevents diseases
7. Mengelakkan banjir kilat
Prevents flash flood
4 4
11(b)(i) 1.Global warming/ Pemanasan global
2. greenhouse effect./ kesan rumah hijau
(any one)
1 1
(ii) Global warming and greenhouse effect will cause loss of resources and lives
due to flash floods.
Pemanasan global dan kesan rumah hijau menyebabkan kehilangan sumber
alam akibat banjir kilat.
1 1
(iii) Avoid open burningElakkan pembakaran terbuka Use aerosols which are chlorofluorocarbon free. // Use HCFC aerosols
Guna aerosol yang tidak mengandungi kloroflorokarbon // Guna
HCFC aerosol
Use public transport / car poolGuna pengangkutan awam / berkongsi kereta
Practice recyclingAmalkan kitar semula
4 4
Total
10
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
12/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
12(a) Able to state four differences between voluntary and involuntary action.
Sample answer
Voluntary action//
Tindakan Terkawal
Involuntary action//
Tindakan Luar Kawal
Controlled by cerebrum//
Dikawal oleh serebrum
Controlled by medulla oblongata//
Dikawal oleh medulla oblongata
Do with consciousness //
Berlaku dengan disedari
Happens unawareness //
Berlaku tanpa disedari
Involve somatic nervous system
//Melibatkan system saraf soma
Involve autonomic nervous system //
Melibatkan system saraf autonomi
Action done at will
Tindakan berlaku mengikut
keinginan
Action done not at will
Tindakan berlaku tidak mengikut
keinginan
4 4
(b) Able to identify two common characteristics
Sample answer
1. Action that we do in consciousness //
Tindakan yang kita lakukan secara sedar
2. Action controlled by cerebrum //
Tindakan dikawal oleh serebrum
2
Able to give one other example of voluntary action
Sample answer
Dancing/ eating/Singing/writing/jogging/etc //Menari/makan/menyanyi/menulis/bersenam/dan lain-lain
[Any one]
1
Able to give two example of involuntary action
Sample answer
Breathing/ heart beat/ peristalsis/blood circulation //
Pernafasan/denyutan jantung/peristalsis/peredaran darah
[Any two]
2
Able to relate the common characteristics to construct the concept of
voluntary action.Sample answer
Voluntary action is action that we do with consciousness and controlled by
cerebrum. //
Tindakan terkawal ialah tindakan yang disedari dan dikawal oleh serebrum
1
Total 10
-
7/29/2019 Skema Pppa Sains Spm k2 Baru
13/13
1511/2 2012Hak Cipta Jabatan Pelajaran Selangor
top related