SAINS FORM4.pdf

8/9/2019 SAINS FORM4.pdf

1/27

[Type text]

SMK ISKANDAR SHAH

SOALAN CUTI TERANCANG

SCIENCE FORM 4

NAME: _______________________________

FORM:________________________________

SECTION A :OBJECTIVE QUESTIONS

1. Diagram 1 shows the structure of a human brain.Rajah 1 menunjukkan struktur otak manusia.

Diagram 1

Which of the following is the effect of injury in section Q? Antara yang berikut, yang manakah kesan kecederaan pada bahagian Q?

A Deaf C Limbs paralysedPekak Kelumpuhan anggota

B Blind D Lost of body balanceButa Kehilangan imbangan badan

2. A muscle cell of an animal has 32 chromosomes. Which of the followingrepresents the number of chromosomes in that animal testis and ovary?Sel otot sejenis haiwan mempunyai 32 kromosom. Antara yang berikut, yangmanakah mewakili bilangan kromosom testis dan ovari haiwan tersebut?

TestesTestis

OvaryOvari

A 16 32B 16 16

C 32 16

D 32 32

3. Diagram 3 shows a change in the state of matter.Rajah 3 menunjukkan perubahan keadaan jirim.

Diagram 3

Q

Ice Ais

SteamStim

Water Air

X Y


2/27

[Type text]

What is process X and Y? Apakah proses X dan Y?

X Y

A MeltingPeleburan

BoilingPendidihan

B MeltingPeleburan

FreezingPembekuan

C CondensationKondensasi

FreezingPembekuan

D CondensationKondensasi

BoilingPendidihan

4. Diagram 4 shows the structure of an atom.Rajah 4 menunjukkan struktur satu atom.

Diagram 4

What is the number of neutron for that atom? Apakah bilangan neutron bagi atom tersebut?

A 3 C 7

B 4 D 10

5. Diagram 5 shows an incomplete periodic table.Which A,B,C or D is represents semi metal?Rajah 5 menunjukkan jadual berkala yang tidak lengkap.

Antara A,B,C dan D manakah yang mewakili separuh logam?

I VIII

II III IV V VI VII

A C D

B

Diagram 5

6. Which of the following is a physical change? Antara yang berikut, yang manakah merupakan perubahan fizik?


3/27

[Type text]

A. Heating a piece of limestone stronglyMemanaskan sekeping batu kapur dengan kuat

B. Iron filings allowed to rust in open airBesi dibiarkan berkarat di udara

C. Heating some naphthalene in a test tube

Memanaskan naftalena di dalam tabung ujiD. Formation of glucose in the process of photosynthesis

Pembentukan glukosa dalam proses fotosintesis

7. The information shows the position of four metals with carbon in the reactivityseries.Maklumat menunjukkan kedudukan empat jenis logam dengan karbon dalam sirikereaktifan logam.

Which metals can be extracted by heating their ores with carbon?Logam manakah yang boleh diekstrak dengan memanaskan bijihnyadengan karbon?

A. Iron and zinc C Iron and magnesiumBesi dan zink Besi dan magnesium

B. Zinc and aluminium D Aluminium and magnesiumZink dan aluminium Aluminium dan magnesium

Magnesium Magnesium

Aluminium Aluminium

Carbon Karbon

Zinc Zink

Iron Besi

Increasing reactivity Kereaktifan bertambah


4/27

[Type text]

8. Diagram 8 shows the bubbles and gases released by the reaction of metals X,Yand Z with dilute hydrochloric acid.Rajah 8 menunjukkan pembebasan gelembung gas dan gas dari tindakbalasantara logam X,Y dan Z dengan asid hidroklorik cair .

Diagram 8

Which of the following correctly represents metals X,Y and Z? Antara yang berikut, yang manakah mewakili logam X,Y dan Z yang betul?

X Y Z

A ZincZink

CopperKuprum

MagnesiumMagnesium

B MagnesiumMagnesium

CopperKuprum

ZincZink

C ZincZink

MagnesiumMagnesium

CopperKuprum

D CopperKuprum

MagnesiumMagnesium

ZincZink

9 . Diagram 9 shows the apparatus of an electrolysis.Rajah 9 menunjukkan radas untuk elektrolisis.

Diagram 9

Which of the following correctly represents P, Q and R? Antara yang berikut, yang manakah mewakili P, Q dan R yang betul?

QP

R

A

X Y Z


5/27

[Type text]

P Q R

A Anode Anod

CathodeKatod

ElectrolyteElektrolit

B Cathode

Katod

Electrolyte

Elektrolit

Anode

AnodC Electrolyte

Elektrolit Anode Anod

CathodeKatod

D CathodeKatod

Anode Anod

ElectrolyteElektrolit

10. Diagram 10 shows the process in production of nuclear energy.Rajah 10 menunjukkan proses penghasilan tenaga nuklear.

Diagram 10

What is X? Apakah X ?

A Proton C NeutronProton Neutron

B Electron D NucleusElektron Nukleus

11 Diagram 11 shows the book under the coloured light.Rajah 11 menunjukkan warna sebuah buku di bawah cahaya berwarna.

Diagram 11

X UraniumUranium

Yellow Kuning

Blue lightCahaya biru

Light sourceSumber cahaya


6/27

[Type text]

What is the colour reflected by the book? Apakah warna yang dipantulkan oleh buku itu?

A Blue C GreenBiru Hijau

B Blach D YellowHitam Kuning

12. Which of the following disease caused by fungi?Di antara berikut yang manakah penyakit yang disebabkan oleh kulat?

A TineaPanau

C MalariaMalaria

B

MeaslesDemam campak

D TuberculosisTibi

13. Which of the following temperature is the most suitable for bacterial growth?

Antara yang berikut, yang manakah suhu yang paling sesuai untuk pertumbuhan bakteria?

AB

00C350C

C 700CD 1000C

14. Which of the following microorganism is used in the food industry? Antara yang berikut, yang manakah mikroorganisma yang digunakan dalamindustri makanan?

A Yeast

Yis

C Plasmodium

PlasmodiumB Mucor

MukorD Bacteriophage

Bakteriofaj

15. Which is the smallest microorganism?Mikroorganisma yang manakah paling seni?

A Algae C Fungi Alga Kulat

B Virus D BacteriaVirus Bakteria

16. Which disease is spread by houseflies?

Apakah penyakit yang disebarkan oleh lalat? A Dengue C Malaria

Denggi MalariaB Cholera D Hepatitis B

Taun Hepatitis B


7/27

[Type text]

17. The figure shows an experiment to study the growth of bacteria at roomtemperature.

Rajah menunjukkan satu eksperimen untuk mengkaji pertumbuhan bakteria padasuhu bilik.

In this experiment, the factor to be studied isDalam eksperimen ini, faktor yang dikaji ialah

A pH C nutrient pH nutrien

B light D temperaturecahaya suhu

18. The diagram shows microorganisms P, Q, R and S.Gambar rajah menunjukkan mikroorganisma P, Q, R dan S.

Which of the following classification are correct? Antara berikut manakah pengelasan yang betul?

Bacteria ProtozoaBakteria Protozoa

A P and S R and QB P and R Q and SC R and Q P and SD Q and S P and R

PQ

R S

Cotton plugKapas

Distilled water +Bacteria culture Air suling +Kultur bakteria

Nutrient broth +Bacteria cultureBubur nutrien +Kultur bakteria


8/27

[Type text]

19. The diagram shows the reproduction of a microorganism.Gambar rajah menunjukkan proses pembiakan satu mikroorganisma.

What is the method of this reproduction? Apakah cara pembiakan itu? A Budding C Conjugation

Penunasan PengkonjugatanB Binary fission D Spore formation

Belahan dedua Pembentukan spora

20. The diagram shows a type of microorganism.Gambar rajah menunjukkan sejenis mikroorganisma.

What is the microorganism? Apakah mikroorganisma tersebut?

A Yeast C EuglenaYis Euglena

B Mucor D ParameciumYis Paramesium

Parent cellSel induk

OffspringSel anak

SporangiumSporagium

HyphaHifa


9/27

[Type text]

STRUCTURED QUESTIONS

1.

Diagram 1

Table 1 shows the result of the experiment.

Distance of object

(cm)

Focal length

(cm)

10 4020 3030 2040 10

Table 1

(a) State the variables in this experiment.(i) Manipulated variable

____________________________________________________________[1 mark]

(ii) Responding variable ____________________________________________________________

[1 mark](iii) Constant variable

____________________________________________________________[1 mark]

(b) State the hypothesis that can be made from the experiment.

__________________________________________________________________ [1 mark]

(c) Write one observation from the result of the experiment.

__________________________________________________________________

Distance of an object

Focal length


10/27

[Type text]

[1 mark]

(d) Based on the result, what happened to the focal length when the distance of anobject increased?

When the distance of an object increased, the focal length _______________ .[1 mark]

2. Diagram 2 shows an experiment to study the formation of an image by a convex lens.

Diagram 2

(a) Complete Diagram 2 to show the formation of the image by the convex lens[2 marks]

(b) Measure and write down the distance of the image.

_____________________________ cm[1 mark]

(c) State two characteristics of the image formed in 2 (a)

1. ____________________________________________________________

2. ____________________________________________________________[2 marks]

(d) Predict the distance of image when the object is place at 2F.

__________________________________________________________________[1 mark]

F 2FF2F 3F3F

Object


11/27

[Type text]

3.Diagram 6 shows an experiment to study the electrical conductivity of lead (II) bromide.

Diagram 3

The result of the experiment is shown in Table 3.

Condition of substances Ammeter Reading

(A)

Solid Lead (II) bromide 0.0

Molten Lead (II) bromide 2.0

Table 3

(a) State the variables in this experiment.

(i) Controlled variable ________________________________________________________________

[1 mark](ii) Manipulated variable

________________________________________________________________[1 mark]

(iii) Responding variable

_________________________________________________________________[1 mark](b) State one hypothesis for this experiment.

__________________________________________________________________[1 mark]

(c) From the result of Table 6, write one observation in this experiment.


12/27

[Type text]

__________________________________________________________________[1 mark]

(d) State one inference from the result in Table 6.

__________________________________________________________________[1 mark]

(e) Based on the result of experiment, which condition can conduct electricity?

__________________________________________________________________[1 mark]

(f) Lead (II) bromide is an ionic compound.State the operational definition for an ionic compound.

__________________________________________________________________ __________________________________________________________________

[1 mark]

4. Diagram 4 shows an experiment to study the reactivity of metals with oxygen.Potassium manganate (VII) crystals will produce oxygen when it heated.

Diagram 4

glass wool


13/27

[Type text]


Type of Metal Brightness of light

Aluminium Very bright

Zinc BrightCopper Not bright

Table 4(a) State the variables in this experiment.

(i) Manipulated variable ________________________________________________________________

[1 mark](ii) Responding variable

________________________________________________________________

[1 mark](iii) Constant variable _________________________________________________________________

[1 mark]

(b) State one hypothesis for this experiment.

__________________________________________________________________[1 mark]

(c) Write one observation from this experiment.

__________________________________________________________________[1 mark]

(d) State one inference from this experiment.

__________________________________________________________________[1 mark]

(e) Based on the result of experiment, tick ( √ ) for the most reactive metal withoxygen.

Aluminium

Zinc

Copper

[1 mark]


14/27

[Type text]

(f) Based on the result in Table 4, state one conclusion in this experiment.

__________________________________________________________________[1 mark]

5. Diagram 5 shows an experiment to study the reactivity of metals with acid.

Diagram 5


Type of Metal

Volume of gas collected

after 10 minutes

(ml)

Zinc 4.0

Magnesium 8.0

Lead 0.0

Table 5


(i) Constant variable ________________________________________________________________[1 mark]

(ii) Manipulated variable ________________________________________________________________

[1 mark](iii) Responding variable

_________________________________________________________________

Gas collected after10 minutes

Burette


15/27

[Type text]

[1 mark](b) State one hypothesis for this experiment.

__________________________________________________________________[1 mark]

(c) State one observation from the result in Table 5.

__________________________________________________________________[1 mark]

(d) Based on the observation in Table 5, state one inference for the experiment.

__________________________________________________________________[1 mark]

(e) Based on the result of experiment, complete the reactivity series of metal withacid in boxes below by using :1 – most reactive; 2 – more reactive and 3 – less reactive.

Zinc

Magnesium

Lead

[1 mark](f) Write down one conclusion in this experiment.

__________________________________________________________________[1 mark]


16/27

[Type text]

6. Diagram 6 shows an experiment to study the heat change in chemical reactions atroom temperature 27°C.

Diagram 5

The result of the experiment is shown in Table 5

Set Type of reactant Final reading of temperature(°C)

P Ammonium chloride 25°C

Q Sodium hydroxide 38°C

Table 5


(i) Controlled variable

________________________________________________________________[1 mark](ii) Manipulated variable

________________________________________________________________[1 mark]

(iii) Responding variable _________________________________________________________________

[1 mark]

(b) State one hypothesis for this experiment.

__________________________________________________________________[1 mark]

(c) Based on the result in Table 5, state one inference for this experiment.

__________________________________________________________________[1 mark]

Initial readingat 27°C


17/27

[Type text]

(d) Endothermic and exothermic are type of chemical reactions.Write the operational definition for ‘endothermic’ in this experiment.

__________________________________________________________________

__________________________________________________________________[1 mark]

7. Diagram 6 shows an experiment to study the effect of impurities on boiling point ofdistilled water.

The results of the experiment are recorded in Table 6.

Type of substances Boiling point/ °C

Distilled water 100

Distilled water + salt………………………….

Table 6

(a) Based on the experiment, complete Table 6.[1 mark]

(b) Write down one hypothesis for this experiment.

__________________________________________________________________[1 mark]

(c) State one observation from the result in Table 6.

__________________________________________________________________[1 mark]

Diagram 6

Common salt

Distilled water


18/27

[Type text]

(d) Write down one inference based on the results of experiment.

__________________________________________________________________[1 mark]

(e) State the variables in this experiment.

(i) Controlled variable ________________________________________________________________


________________________________________________________________[1 mark]

(iii) Responding variable

_________________________________________________________________[1 mark]

(f) Predict the boiling point if you replace salt with sugar in Diagram 6.

__________________________________________________________________[1 mark]

(g) What is the operational definition of distilled water?

__________________________________________________________________

__________________________________________________________________[1 mark]


19/27

[Type text]

8. Diagram 7 shows an experiment to study the characteristics of an image formed by a pinhole camera.

Diagram 7

(a) Measure and write down the object distance from Diagram 7. ___________________________ cm

[1 mark](b) State the variables in this experiment.

(i) Manipulated variable _________________________________________________________________

[1 mark](ii) Responding variable __________________________________________________________________

[1 mark](iii) Constant variable __________________________________________________________________

[1 mark](c) State one hypothesis based on this experiment.

__________________________________________________________________[1 mark]

(d) Write down one observation from this experiment.

__________________________________________________________________[1 mark]

x cm

Object distance

Whitescreen

Object

Image

2 cm


20/27

[Type text]

(e) Predict the size of the image if the object placed at more than x cm from the pinhole camera.

__________________________________________________________________[1 mark]

(f) Based on Diagram 7, state three characteristics of the image formed on whitescreen.

1. ________________________________________________________________

2. ________________________________________________________________

3. ________________________________________________________________[3 marks]

8.Diagram 8 shows an experiment to study the hardness of alloy compared to puremetal.

Diagram 8 show the effect on the copper and brass block.

Diagram 8

Diagram 16.2


21/27

[Type text]


(i) Manipulated variable: ______________________________________

(ii) Responding variable : ______________________________________

(iii) Controlled variable : _______________________________________

[3 marks]

(b) Write down one hypothesis from this experiment.

_____________________________________________________________________[1 mark]

(c) Write down one observation based on Diagram 8.

_____________________________________________________________________[1 mark]

(d) State one inference based on the observation in (c).

_____________________________________________________________________[1 mark]

(d) Brass is an alloy.State the operational definition of alloy.

_____________________________________________________________________[1 mark]

(e) Predict the dent of copper block if weight 200g is used in this experiment.

_____________________________________________________________________[1 mark]


22/27

[Type text]

9.Diagram shows the arrangement of apparatus to study the subtraction of RED colourlights from Colour of Filters X.

Diagram 9


Table 9

Colour of Filter X Colour formed

RED RED

BLUE BLACK

GREEN BLACK


(i) Manipulated variable: ______________________________________

(ii) Responding variable : _______________________________________

(iii) Controlled variable : _______________________________________

[3 marks](b) Write down one hypothesis from this experiment.

_____________________________________________________________________

[1 mark]

(c) Write down one observation based on the result in Table 9.

_____________________________________________________________________[1 mark]

(d) State one conclusion based on the result in Table 9.

White

screen

RED Lights


23/27

[Type text]

_____________________________________________________________________[1 mark]

(e) Predict the colour formed on the white screen when the colour of X isYELLOW.

_____________________________________________________________________[1 mark]

10.The Form 4 Bestari carry out an experiment to study the variation of group of blood.There are four group of blood; A, B, AB and O.

Table 10.1 shows the group blood of 25 pupils in the class.

Table 10.1

(a) Based on Table 10.2, determine the number of pupils in each group. CompleteTable 10.2.

Table 10.2

Group of blood A B AB O

Number of pupils

[2 marks]

(a) Based on the result in Table 10.2, draw a bar chart to show the number of pupilsagainst the group of blood.

O A O B O

AB B O B A

O A B A O

B O B O AB

O AB O A B


24/27

[Type text]

[2 marks](b) State the variables in this experiment.

(i) Constant variable ________________________________________________________________


________________________________________________________________[1 mark]

(iii) Responding variable _________________________________________________________________

[1 mark]

(c) Write down one hypothesis from the experiment.

_____________________________________________________________[1 mark]

(d) State one observation from the result in Table 10.2.

_____________________________________________________________

Number of

pupils

Group of blood


25/27

[Type text]

[1 mark]

(e) Write a conclusion on the type of variation based on the bar chart in (a).

_____________________________________________________________

[1 mark]11.Diagram 11 shows an experiment to study of effect of antibiotic on bacteria growth.The Penicillin dish is an antibiotic using in this experiment. The sterilized petri dish isincubated at 37°C in laboratory.

After two days there are clear areas formed surroundings the penicillin disc.

Diagram 11(a) State the variables in this experiment.

(i) Manipulated variable

____________________________________________________________[1 mark]

(ii) Responding variable

____________________________________________________________[1 mark]

(iii) Controlled variable

____________________________________________________________[1 mark]

Sterilized Petri dish

Nutrient agar+

bacteria Bacillus subtilis

CLEAR AREA

PENICILLIN DISH


26/27

[Type text]

(b) State the hypothesis based on this experiment.

__________________________________________________________________[1 mark]

(c) State the observation for this experiment. __________________________________________________________________

[1 mark](d) State the inference that can be made from the observation in this experiment.

__________________________________________________________________[1 mark]

(e) Write down the conclusion from this experiment.

__________________________________________________________________

[1 mark](f) Penicillin is an antibiotic.Write the operational definition of antibiotic in this experiment.

__________________________________________________________________

__________________________________________________________________[1 mark]

12.Diagram 12 shows an experiment to study the effects of temperature on the bacteriagrowth.

Diagram 12Table 12 shows the result of the experiment.Table 12

Temperature

(°C)

Number of bacteria colonies

5 5


27/27

[Type text]

30 15

37 28

70 3

(a) State the variables in this experiment.(i) Constant variable

____________________________________________________________[1 mark]

(ii) Manipulated variable

____________________________________________________________

[1 mark](iii) Responding variable

____________________________________________________________[1 mark]

(b) State one hypothesis in this experiment.

__________________________________________________________________[1 mark]

(c) Write down one observation based on the result in Table 12.

__________________________________________________________________[1 mark](d) State one inference based on observation in (c).

__________________________________________________________________[1 mark]

(e) Predict the number of bacteria colonies when using temperature 100°C.

__________________________________________________________________[1 mark]

SAINS FORM4.pdf

Documents

Transcript of SAINS FORM4.pdf