Kertas akhir tahun tingkatan 2

SMK KING EDWARD VIITAIPING

PEPERIKSAAN AKHIR TAHUN ________________________________________________________________________

SCIENCE FORM 2 PAPER 1

I HOUR(40 marks)

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DO NOT OPEN THE QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO

1. This question paper consists of 40 questions.2. Answer all questions3. Answer each question by blacking the correct space on the answer sheet.4. Blacken only one space for each question.5. If you wish to change your answer, erase the blackened mark that you have made.

Then blacken the space for your new answer.6. The diagrams in the questions provided are not drawn to scale unless stated.7. You may use a non-programmable scientific calculator.

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1 There is a class of food that consists of carbon, hydrogen, oxygen and nitrogen.Among the following, which is the function of the class of food mentioned, to human beings?

A Main energy sourceB Substance for building new cells C Dissolves a certain vitamins in the body D Protects the body against diseases

2

The diagram above shows tests for two classes of food. It is observed that red precipitate formed in test tubes X and Y. Therefore test tubes X and Y contain

X YA Protein and glucoseB Glucose and proteinC Starch and glucoseD Protein and starch

3

The diagram above shows a balanced diet. Among the following, which represents the class of food labelled X?

A ProteinB FatC CarbohydrateD Fibre

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4 Solution X shows the characteristics below:

Among the following, which is X?

A LimewaterB SauceC VinegarD Distilled water

5

The table above shows the test results of substance X. Among the following, which could possibly be substance X?

A ToothpasteB SoapC Lime waterD Lime juice

6 When zinc is put into solution X, a gas that produces a 'pop' sound with a burning splint is released. Solution X could possibly be

A ammoniaB hydrochloric acidC waterD calcium hydroxide

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7

On the diagram above, dilute hydrochloric acid is drained into the solution in the beaker until its colour becomes green. That new solution formed has all the following characteristics except that

A it has pH value of 7B it produces salt crystal when evaporatedC the new solution is sodium chlorideD it is corrosive

8 The following are four processes that are involved in water treatment

Among the following sequences of the processes, which is correct in water treatment process?

A Q, R, P, SB P, Q, R, SC Q, P, R, SD R, Q, P. S

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9

The diagram above shows the apparatus set-up of an experiment. Among the following, which is not correct?

A This process is called distillationB Steam will form inside the round-bottom flaskC The distillate contains mineral saltD The distillate does not contain any suspended particles

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The above diagram shows the process of electrolysis of water. What is the characteristic of gas X collected in the test tube?

A Produces a 'pop' sound when tested with a lighted wooden splintB Helps in burningC Acidic in natureD Has a pungent smell

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11

The diagram above shows a graph of solubility of salt X in 100 ml of water versus temperature. What is the solubility of salt X at a temperature of 40 C?

A 30 gB 40 gC 60 gD 100 g

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The diagram above shows a little of substance X being put into substance Y in order to produce substance Z. Among the following, which represents the substances X, Y and Z?

X Y ZA Solute Solvent SolutionB Solvent Solution Solute C Solvent Solute SolutionD Solution Solute Solvent

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13

Among the following, which shows the process of X that happens in the above equation?

A EvaporationB DecompositionC ElectrolysisD Distillation

14

A drop of liquid is dropped on a piece of glass slide and then dried under the sunlight. At the end of the experiment, small white particles were found on the slide as shown in the diagram above. Among the following, which is the possible source of that liquid?

A SeawaterB Rain waterC Well waterD River water

15 Seawater has a boiling point of over 100 C. This shows that sea water contains a lot of

I mineral saltII dissolved gasesIII micro-organism

A I onlyB I and II onlyC II and III onlyD I, II, and III

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16 Among the following chemicals, which is added to the water in a water treatment plant?

I AlumII LimeIII Chlorine

A I onlyB I and II onlyC II and III onlyD I, II, and III

17

The diagram above shows the stages in a water purification plant. Among the following, which substance is added in the coagulation and sedimentation tank?

I LimeII AlumIII Chlorine

A I onlyB I and II onlyC II and III onlyD I, II, and III

18 The gas pressure in a container increases when

A the number of gas particles decreasesB the volume of the container is reducedC the gas is cooledD the volume of the container is increased

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19

The following are the reasons causing the tin to become dented when it is heated untilall the air is driven out and the cap tightly closed before cold water is poured over it except

A cold water condenses the steam into waterB air pressure outside the tin which is higher pushes the tin inwardsC air pressure inside the tin decreasesD air pressure inside the tin increases

20 Which of the following is not kept under high pressure?

A PerfumeB Hair sprayC Tomato sauceD Insecticide

21 When using gas under high pressure, the safety measure taken isI gas cylinder should be kept far away from heat sourceII gas cylinder should not be placed in a closed placeIII gas cylinder must always be in an upright position

A I onlyB I and II onlyC II and III onlyD I, II, and III

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22 Among the following tables, which is the most stable?

23

The chair in the diagram above can be made more stable by

A lengthening its legsB shortening its legsC changing the seat to a bigger oneD increasing the weight of the seat

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24 Among the following objects, which is the most stable?

25

The diagram above shows four wooden blocks, K, L, M and N. Those four blocks are put side by side on top of a plank. If the plank was tilted slowly, which wooden block will topple last?

A K C MB L D N

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26 Among the following pairs of organisms with their types of support, which is correct?

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The diagram above shows the support system on vertebrates and invertebrates.

Among the following, which represents the support system for X, Y and Z?

X Y ZA Buoyancy of water Hydrostatic skeleton EndoskeletonB Hydrostatic skeleton Endoskeleton Turgidity of cellC Endoskeleton Buoyancy of water Hydrostatic skeleton D Hydrostatic skeleton Turgidity of cell Buoyancy of water

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28

How could the aquatic plant in the above diagram be made to stand upright?

I Place it into a beaker of waterII Place it into a tin filled with sandIII Place it into a container filled with clay

A I onlyB I and II onlyC II and III onlyD I, II, and III

29 Among the following tools, which belongs to the same class of lever as a badminton racket?

A ScissorsB Paper cutterC ForcepsD Bottle opener

30

Among the following tools, which is classified under the same class of lever as the tool shown in the diagram above?

A PliersB Wheelbarrow C Fishing rodD Bottle opener

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31

The diagram above shows a bottle opener that is being used to open the lid of a bottle. Among the following, which is correct?

Fulcrum Effort LoadA L M N B N L MC M L ND N M L

32

The diagram shows a student holding a book. Match P, Q and R with the correct class of lever.

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33

The diagram above shows a lever that is balanced. What is the reading of

the spring balanceand what is the class of the lever?

34 Among the following, which correctly shows the model of the lever system for ice tongs?

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35 Among the following, which needs an effort of 20 N so that the rod becomes balanced?

A I onlyB I and II onlyC II and III only D I, II, and III

36

Among the following, which correctly shows the points of P, Q and R for the leversystem in the diagram above?

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I P - Fulcrum

II Q - Load

III R - Effort

A I onlyB I and II onlyC II and III onlyD I, II, and III

37

Which of the following is true for this food chain?

A The small fish is the primary consumerB The sea lion is a herbivoreC The population of the small fish will increase if the population of the sea

lion increasesD The seaweed population will decrease if the population of the small fish

decrease

39

The figure above shows a food web. The secondary consumers areA bird and snakeB bird onlyC snake onlyD eagle only

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40

An experiment is carried out and it is observed that the part that is exposed to sunlight becomes dark blue when tested with iodine solution What is the conclusion of the experiment?

A Photosynthesis requires chlorophyllB Photosynthesis requires sunlightC Photosynthesis requires carbon dioxideD Photosynthesis requires water

QUESTION END

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