ujian kemajuan 2

SMK PADANG POLO, PULAU PINANG

UJIAN KEMAJUAN 2 2015SAINS TINGKATAN 4 ( 1 JAM 30 MINIT )

Disediakan oleh : Pn. Nur Safawati Binti Mohd NorDisemak oleh : …………………………………………….Disahkan oleh : …………………………………………….

Nama Pelajar : ………………………………………………… Kelas : 4 ………………………..

Arahan : Jawab SEMUA soalan. Answer ALL of the questions.Bahagian A : Section A [20 markah / 20 marks ]

1. Sel somatik seekor tikus mengandungi 40 kromosom. Berapakah bilangan kromosom yang terdapat di dalam ovum? A mouse’s somatic cell contains 40 chormosomes. How many chromosomes are found in its ovum?

A 20 C 60B 40 D 80

2. Rajah di bawah menunjukkan kacukan antara generasi pertama bagi 2 ekor kucing.The diagram shows a first generation of cross breeding of two cats.

H represents the dominant genes for black fur

H mewakili gen dominan bagi bulu hitam

h represents recessive genes for white fur

h mewakili gen resessif bagi bulu putih

Apakah gen bagi induk? What are the genes for the parents?

Jantan /Male Betina / Female A HH HhB HH hhC Hh hhD hh Hh

3. Rajah di bawah menunjukkan bagaimana jantina manusia ditentukan The diagram shows how the sex offspring is determined in humans.

Kromosom manakah yang terdapat dalam gamet P dan Q ? Which chromosomes are found in gametes P and Q?

P QA 22 + X 22 + YB 22 + Y 22 + XC 44 + X 44 + YD 44 + Y 44 + X

4. Rajah di bawah menunjukkan perwarisan ketinggian pokok kacang pea. The figure shows the inheritance of height of pea plants.

Anak manakah yang mempunyai pasangan gen yang betul? Which offspring has a correct pair of genes?

Offspring Pair of genesA P Tt B Q TTC R TTD S tt

5. Kromosom yang terdapat dalam sel kulit seorang lelaki adalah..The chromosomes present in the male skin cells are

A 22 + Y C 44 + XXB 22 + X D 44 + XY

6. Seorang wanita yang mempunyai satu sahaja kromosom X mengidap penyakit…A female who has only one X chromosome is said to suffer from

A Sindrom down / Down’s syndromeB Sindrom Turner / Turner’s syndromeC Sindrom Klinefelter / Klinefelter’s syndromeD Albinisme / Albinism

7. Berdasarkan jadual di bawah, elemen manakah merupakan isotop?Based on the table, which elements are isotopes?

A E and GB G and JC J and LD E and L

8. Apabila air berubah menjadi ais,When water changes into ice,

A haba diserap daripada persekitaranheat is absorbed from the surrounding

B molekul-molekul kehilangan tenaga kineticits molecules lose their kinetic energy

C mmolekul-molekul dalam keadaan tidak tersusunits molecules are not in an orderly

arrangementD daya tarikan antara moleku bekurangan

l the forces of attraction between moleculesdecreases

9. Berdasarkan jadual berkala, elemen yang manakah mewakili logamBased on the periodic table, which element represent a metal?

10. Manakah antara berikut tidal terdapat dalam teori kinetik jirim?Which of the following is not stated in the kinetic theory of matter?

A Jirim terbina daripada zarah-zarah halusMatter is made up of tiny particles.

B Zarah dalam jirim bergerak secara seragamThe particles of matter are in constant motion.

C Apabila atom bergabung secara kimia, molekul terbentuk.When atoms combine chemically, molecules are formed.

D Apabila suhu meningkat zarah-zarah jirim mempunyai lebih tenaga kinetik dan bergerak lebih lajuWhen temperature rises particles of matter obtain more kinetic energy and move faster.

11. Antara pernyataan berikut yang manakah tidak benar tentang ciri-ciri zarah subatomic?Which of the following statements about the characteristics of subatomic particles is not true?

A Neutron bercas neutralNeutron is neutral in terms of charges.

B Proton ialah nucleus bagi suatu atomProton is the nucleus of an atom.

C Jisim neutron adalah sangat kecil sehingga boleh diabaikan.The mass of the neutron is so small that it is negligible.

D electron mengelilingi nukleus dalam laluan yang dikenali sebagai orbit.

Electrons surrounds the nucleus in paths called orbits.12. Manakah antara pernyataan berikut tidak benar tentang zarah pepejal?

Which of the following statements is not true about solid particles?

A Zarah-zarah tersusun padatThe particles are closely packed.

B Tenaga kinetik zarah tinggiThe kinetic energy of the particles are high.

C zarah-zarah tidak boleh bergerak bebasThe particles cannot move freely.

D zarah-zarah hanya boleh bergetarThe particles can only vibrate.

13. Manakah antara A, B, C atau D mewakili Proses pemejalwapan?

14. Rajah 2 menunjukkan struktur suatu atom. Manakah antara A, B, C atau D mewakili proton?

15. Manakah antara proses berikut mewakili kondensasi?

16. Manakah antara A, B, C atau D mewakili zarah gas?

17. Manakah antara berikut merupakan perubahan fizikal? Which of the following is a physical change?

A Pendidihan airBoiling of water

B Meletakkan secebis kalsium ke dalam airPutting a piece of calcium into water

C Memanaskan magnesium dan sulfurHeating of magnesium and sulphur

D Memanaskan zink karbonatHeating of zinc carbonate

18. Rajah di bawah menunjukkan kedudukan logam X dalam siri kereaktifan logam.The diagram shows the position of metal X in te reactivity series of metals.

Metal X Carbon Reactivity increase Copper

Apakah logam X?What is metal X?

A Zink /Zinc C Plumbum / Lead B Ferum/ Iron D Magnesium / Magnesium

19. Manakah antara berikut menunjukkan susunan dalam siri kereaktifan logam mengikut urutan menaik?Which of the following shows the order of reactivity of metals beginning with the most reactive metal?

A Kalsium, Natrium, Zink, MagnesiumCalcium, sodium, zinc, magnesium

B Natrium, Kalsium, Magnesium, KuprumSodium, calcium, magnesium, copper

C Magnesium, Kalsium, Kalsium, Zink, NatriumMagnesium, calcium, zinc, sodium

D Natrium, Magnesium, Kuprum, PlumbumSodium, magnesium, copper, lead

20. Manakah antara ciri-ciri berikut menunjukkan perubahan fizikal bagi suatu bahan?Which of the following characteristics indicate physical changes of a substance?

I Tiada bahan baru terbentukNo new substance is formed

II Boleh kembali ke keadaaan asalMay change back into the original state

III Melibatkan perubahan tenaga yang banyakInvolves a lot of energy change

A I and II only B I and III only C II and III only D I, II and III

1. 5. 9. 13. 17.

2. 6 10. 14. 18.

3. 7. 11. 15. 19.

4. 8. 12. 16. 20.

Bahagian B : Section B [ 30 markah / 30 marks ]

1. Jadual 2.1 menunjukkan jenis cuping telinga bagi 20 orang pelajar dalam sebuah kelas.Table 2.1 shows the types of ear lobe of 20 students in a class.

(a) Berdasarkan data dalam Jadual 2.1, lengkapkan Jadual 2.2 Based on the data in Table 2.1, complete Table 2.2.

Number of student with

Attached ear lobe Free ear lobe

Table 2

[ 2 markah/ 2 marks ]

(b) Berdasarkan Jadual 2.2, lukis carta bar dalam kertas graf.Based on the Table 2.2, draw a bar chart in the graph paper below.

[ 3 markah / 3 marks ]

(c) Apakah jenis variasi yang ditunjukkan dalam carta bar di 2 (b)What type of variation is shown in the bar chart in 2(b)?

______________________________________________________________________________

[ 1 markah/ 1 mark ]

(d) Selain daripada jenis cuping telinga, nyatakan 3 ciri-ciri lain yang terdapat pada manusia yang mempunyai variasi yang sama.Apart from types ear lobes, state three characteristics in humans that show the same type of variation.

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________


(e) Apakah faktor yang mempengaruhi variasi di 2(c)What is the factor that influences variation in 2(c)

______________________________________________________________________________


2. Jadual 6 menunjukkan nombor proton, bilangan electron, dan nombor nukleon bagi atom P,Q,R dan S.Table 6 shows the proton number,number of electrons,nucleon number and number of neutrons of atoms P,Q, R and S.

(a)(a)(a)(a)(a)(a)(a)(a)(a)(a)

(a) Lengkapkan Jadual 6 dengan menulis bilangan electron dan bilangan neutron bagi atom P, Q, R dan S.Complete Table 6 by writing down the number of electrons and number of neutrons for atom P, Q, R and S.

[ 4 markah / 4 marks ]

i. Manakah antara atom ini merupakan ion positif?Which of these particles is a positive ion?

______________________________________________________________________________ [1 markah / 1 mark]

ii. Berikan sebab bagi jawapan di 2(a)(i).Give a reason for your answer in 2(b)(i).

______________________________________________________________________________

[1 markah / 1 mark]

(b) i. Tentukan satu atom yang merupakan atom neutral.Determine one particle which is a neutral atom.

_________________________________________________________________________________

[1 markah / 1 mark]

ii. Berikan sebab bagi jawapan di 2(c)(i) Give a reason for your answer in 2(c)(i).

______________________________________________________________________________

[1 markah / 1 mark](c) i. Manakah antara atom tersebut merupakan pasangan isotop?

Atom/ParticleNombor proton / Proton Number

Bilangan electron / Number of electrons

Nombor nucleon / Nucleon number

Bilangan neutron / Number of neutrons

P 3 7 4

Q 4 3 9

R 6 12 6

S 6 6 13

Which of the particles are isotopes of the same element?

______________________________________________________________________________ [1 markah / 1 mark]

ii. Berikan sebab bagi jawapan di 2(d)(i)Give a reason for your answer in 2(d)(i). ______________________________________________________________________________

[1 markah / 1 mark]

3. Rajah di bawah menunjukkan elektrolisis bagi larutan kuprum (II) klorida menggunakan elektrod X dan Y.The diagram below shows an electrolysis experiment for copper(II) chloride solution, using electrodes X and Y.

Kuprum (II) kloridaCopper(II) chloride

a) i) Elektrod anod di wakili oleh ______________________________ Anode electrode is represented by __________________________

ii) Elektrod katod di wakili oleh ________________________ Cathode electrode is represented by _______________________


b) Lukis arah gerakan electron dalam rajah di atas.Draw the direction of eletron in the diagram above.


c) i) Apakah yang berlaku di anod? What happened at anode? ____________________________________________________________________________

ii) Tulis persamaan yang berlaku di anod. Write equation at anode.

____________________________________________________________________________

d) i) Apakah yang berlaku di katod? What happened at cathode?

____________________________________________________________________________

ii) Tulis persamaan yang berlaku di katod. Write equation at cathode.

____________________________________________________________________________


e) Sekiranya inging menyadur sudu besi dengan logam nikel , apakah bahan yang sepatutnya If you wish to electroplate an iron spoon with nickel, what should you use as

i) Katod / cathode? _________________________________

ii) Anod / anode? _________________________________

iii) Elektrolit / electrolyte? ________________________________ [ 3 markah/ 3 marks ]

~SOALAN TAMAT~

ujian kemajuan 2

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