Pmr Trial 2007

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55/1 Sains Kertas 1 September 2007 1 jam

SEKOLAH MENENGAH RIAM ROAD UJIAN PERCUBAAN

PENILAIAN MENENGAH RENDAH 2007 SAINS Kertas 1 Satu jam

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU 1. This question paper consists of 40 questions. 2. Answer all questions. 3. Answer each question by blackening 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 blackened 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.

Kertas soalan ini mengandungi 12 halaman bercetak

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1) X, Y and Z are symbols of hazardous for chemicals. There are three bottles, which contain ethanol, concentrated sulphuric acid and mercury. Which of these bottles are labeled correctly? Ethanol Concentrated sulphuric acid Mercury A X Z Y B Y Z X C Y X Z D Z Y X

2) J, K and L in the above information shows the stages in the organization of cells in an organism. Which of the following are examples of stages J, K and L? J K L A Heart Muscle Sperm B Sperm Heart Muscle C Muscle Sperm Heart D Muscle Heart Sperm

Figure 1 3) Figure 1 shows the classification of plants. Which of the following plants are examples of plants in group M and N? [Lihat sebelah SULIT 55/1

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55/1 M Spirogyra Grass Mushroom Grass

N Balsam Maize Paddy Groundnut

A B C D

Figure 2 4) Figure 2 shows the change in states of water from state Q to R. R is in a different state matter from Q. Which of the following shows the correct arrangement of particles in states Q and R? Q State R State A

B

C

D

Table 1 5) Table 1 shows the densities of five types of substances are put in a cylinder and are left for a few minutes. Which of the following shows the correct positions of the substances P, Q, R, S and T? [Lihat sebelah SULIT 55/1

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A

C

B

D

6) The agricultural residue like palm oil husk and coconut shell can be used as a source of energy. Which of the following statements about this energy source is not true? A It is known as biomass C It is a type of fossil fuel B It can produce biogas D It is a renewable energy source

Figure 3 7) Figure 3 shows the classification of matter. Which of the following are possible substances for K, L and M? K Non-metal Non-metal Alloy Alloy

L Mercury Bromine Mercury Bromine

M Bromine Mercury Bromine Mercury

A B C D

8) A pencil looks red when white light is shone on it. Which of the following causes the pencil to look red? A The pencil reflects red light C The pencil scatters red light B The pencil absorbs white light D The pencil refracts white light

Figure 4 9) Figure 4 shows an experiment to determine the percentage of oxygen used in the burning of candle. What is the percentage of oxygen used in the burning? [Lihat sebelah SULIT 55/1

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A 20.0 B 33.3

C 50.0 D 66.6

10) P and Q in Figure 5 show two types of eye defect.

Figure 5 Which type of lens can be used to correct the defects in P and Q? P Convex lens Convex lens Concave lens Concave lens

Q Concave lens Convex lens Convex lens Concave lens

A B C D

11) Figure 6 shows a thermos flask, which is used to keep hot water. Which of the following labeled parts A, B, C and D reduces the heat loss by radiation? A C

B

D

12) Which of the following pairs is true? Part of ear Function A Ear Vibrates when receiving sound B Auditory nerve Sends nerve impulses from the brain to the cohlea C Eustachian tube Controls balancing of the body D Cochlea Transform vibration to nerve impulses

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13) X, Y and Z in Figure 7 shows the steps in testing for the presence of starch in leaves. Which of the following shows the purpose of steps X, Y and Z? Step X To remove chlorophyll

Step Y To kill the cells

To kill the cells

To remove chlorophyll

Testing the presence of starch To kill the cells

To kill the cells Testing the presence of starch

Step Z Testing the presence of starch Testing the presence of starch To remove chlorophyll To remove chlorophyll

A B C D 14) Figure 8 shows the different areas of taste of a tongue. Which of the areas are sensitive to salt, sugar and vinegar?

A B C D

Salt P P Q Q

Sugar S R R S

Vinegar Q S P R

15) Table 2 shows the pH values of substances X, Y and Z. Which of the following represent substances X, Y and Z? Material X Y Z 55/1

pH value 5 7 8

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X Vinegar Vinegar Toothpaste Water

Y Toothpaste Water Vinegar Vinegar

Z Water Toothpaste Water Toothpaste

A B C D

16) Figure 9 shows the stages in a water purification plant. Substances P, Q, R and S are put into tanks Y and Z. Which of the following represents P, Q, R and S?

A B C D

P Q Alum Fluorine Slaked lime Chlorine Alum Slaked lime Chlorine Alum

Figure 9 R Chlorine Fluorine Fluorine Slaked lime

S Slaked lime Alum Chlorine Fluorine

17)

Figure 10 Figure 10 shows the electrolysis of water. Gas X is A oxygen C carbon dioxide B hydrogen D sulphur dioxide [Lihat sebelah SULIT 55/1

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18)

Figure 11 The pie chart in Figure 11 shows the comparison of ratios between the classes of food in a food sample. The food sample is most probably A chicken C fish B fresh milk D bread 19) The diagram shows the digestive system.

What class of food is digested in the organ labeled L? A Protein B Fats C Carbohydrates

D Fibre

20) Figure 12 shows the interaction between the living organisms.

Figure 12 Which of the following pairs represent the interaction X? A Mosquito and lizard C Green algae and fungi B Grass and lalang D Tapeworm and the human intestine 21) The diagram shows a model of the human respiratory system.

Which of the following pairs is incorrect? Part of the model Balloon Rubber sheet Glass tubes Bell jar 55/1

Respiratory system Lungs Diaphragm Trachea Thoracic cavity

A B [Lihat sebelah SULIT

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C D 22) The diagram shows a cross section of plant stem.

Afid is a kind of parasite that sucks plant sap. Which of the following part is sucked by the afid? A K B L C M D N 23) An antiseptic solution can be prepared by dissolving iodine in A acetone C methylated spirit B ether D alcohol

24) Mohd. Ali weighing 50 N drags a sack through a distance of 3.0m.

How much work is done by the student? A 15J B 30J C 50J

D 150J

25) The bulb, ammeters and dry cells in the following circuits are identical. Which circuit shows the highest reading? A C

B

D

26) The diagram shows a spraying pump.

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A B C D

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What will happen when the piston is pushed forward? Air pressure at X is lower and air pressure in the container increases. Air pressure at X is higher and air pressure in the container decreases. Air pressure at X decreases and air pressure in the container remains the same. There is no change in the air pressure at X and air.

27) The table below shows the observation of an experiment carried out on a particular gas. Experiment 1. Test for colour, smell and taste 2. Invert a test tube of the gas into a beaker of alkaline pyrogallol solution. 3. Insert into the test tube a piece of moist litmus paper. The gas tested is most probably A carbon dioxide B oxygen

Observation No colour, smell and no taste The solution rise up the test tube There is no change in colour

C nitrogen

D hydrogen

28) Table below shows the result of food tests carried out on a food sample. Food Test 1. A little oil is spread on a piece of filter paper. 2. Million reagent is added on the food sample and heated. 3. A few drops of iodine is added to the food sample.

Result The oil stain stays permanent. Brick red precipitate is formed. It turns blue black.

Which of the following food contain the same class of foods as in the tested food sample? A Egg, bread and butter B Lemon, fish and coca-cola C Milk, oats and sugar D Meat, egg and tomato 29) The diagram shows the features of a type of flower.

What is the agent of pollination for the flower? [Lihat sebelah SULIT 55/1

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55/1 B water

C insect

D animal

30) The diagram shows a compass is put on the cardboard.

A

Which is the correct direction of the compass needle? B C

D

31) The diagram shows the cross section of a seed.

Which of the parts, P, Q, R or S will develop into the shoots of a plant? A P B Q C R D S 32) Ahmad uses a fan rated 240 V, 800 W for two hours daily. If the cost of electrical energy is RM10.00, how many days the fan is being used? [The cost of electrical energy is 25 cent per unit]. A 10 B 25 C 28 D 30 33) The diagram shows an electric circuit.

What is the reading of the ammeter in the circuit? A 0.4 A B 2.5 A C 3.6 A

D 6.2 A

34) The diagram shows the female reproductive system.

What is the process that occurs in the part labeled X? A Ovulation C Implantation B Fertilization D Reproduction 35) The diagram shows the formation of a shadow. [Lihat sebelah SULIT 55/1

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Which if the following shadows is formed on the screen? A C

B

D

36) The diagram shows the female reproductive organ of a flower.

Which of the following processes occurs in X? A Pollination C Fertilization B Germination D Sporulation 37) Figure 13 shows the reaction of substance P with hydrochloric acid.

Figure 13 What is substance P? A Calcium B Calcium carbonate

C Calcium sulphide D Calcium sulphate

38) The following are safety device in the warning system at home. I Fuse II Earth wire III Circuit breaker IV Main switch [Lihat sebelah SULIT 55/1

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A I, III and IV only B II, III and IV only

C I, II and III only D I, II, III and IV only

39) What are the types of fuels commonly used by space rockets? I Oxygen II Hydrogen III Helium A I and II only C II and III only B I and III only D I, II and III 40) The information below are features of a natural satellite in the solar system. • Has no atmosphere • The force of gravity is weak • Consists of many craters • No organism live in it This object is A planet Pluto B planet Mars

C the Moon D the star KERTAS SOALAN TAMAT

55/2 Sains Kertas 2 September 2007 1 ½ jam

SEKOLAH MENENGAH RIAM ROAD UJIAN PERCUBAAN

PENILAIAN MENENGAH RENDAH 2007 SAINS Kertas 2 Satu jam tiga puluh minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU [Lihat sebelah SULIT 55/1

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1. This question is in English Language. 2. This question paper consists of two sections: Section A and Section

3. 4. 5. 6. 7.

8. 9.

B. Write your answer in the spaces provided in the question paper. If you wish to cancel any answer, neatly cross out the answer. The diagrams in the questions provided are not drawn to scale unless stated. Marks allocated for each question or part question are shown in the brakets. The time suggested to answer Section A is 60 minutes and Section B is 30 minutes. You may use a non-programmable scientific calculator. Hand in this question paper at the end of the examination. Kertas soalan ini mengandungi 9 halaman bercetak Section A [40 marks] Answer all questions. [The time suggested to complete this section is 60 minutes]

1) Figure 1 shows the human circulatory system.

Figure 1 (a) Name two types of circulation found in the human body. [Lihat sebelah SULIT 55/1

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(i) _____________________________________________________________________ (ii) _____________________________________________________________________ (2 marks) (b) What are the parts labeled P, Q, R and S? (i) P: _________________________________________________________________ (ii) Q: _________________________________________________________________ (iii) R: _________________________________________________________________ (iv) S: __________________________________________________________________ (2 marks) (c) Give two characteristics of the blood flowing in blood vessel R. (i) ____________________________________________________________________ (ii) ____________________________________________________________________ (2 marks) (d) What is the structure that divides the heart into the right side and the left side? ____________________________________________________________________ _ (1 marks)

2) Figure 2 shows the male reproductive system.

Figure 2 (a) Name the parts labeled P, Q, R and S. (i) P: _________________________________________________________________ (ii) Q: __________________________________________________________________ (iii) R: __________________________________________________________________ (iv) S: __________________________________________________________________ (2 marks) (b) What is the function of Q? [Lihat sebelah SULIT 55/1

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_______________________________________________________________________ _ (1 marks) (c) Why is R located outside the body? _______________________________________________________________________ _ (1 marks) (d) Which part of the male reproductive system is cut and tied during vasectomy? _______________________________________________________________________ _ (1 marks) (e) Give two reasons for sterility in men. (i) ____________________________________________________________________ (ii) _____________________________________________________________________ (2 marks) 3) Figure 3 shows the fractional distillation of petroleum. (a) Label the name of petroleum fraction in the boxes provided.

Figure 3 (4 marks) (b) The table below shows the characteristics of the fractions of petroleum. What conclusion can be drawn from the results given? Temperature range ºC 50-100 100-150 150-200 200-250 Colour Colourless Yellow Dark Yellow Brownish Viscosity Not viscous Less viscous Viscous Very viscous Soot produced A little A little A lot A lot The higher the boiling point of the fraction, (i) _____________________________________________________________________ (ii) _____________________________________________________________________ (iii) ____________________________________________________________________ (3 marks) 4) Figure 4 shows two types of fuses commonly used in homes.

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Figure 4 (a) Name the two types of fuses. (i) _____________________________________________________________________ (ii) _____________________________________________________________________ (2 marks) (b) State the function of a fuse. _____________________________________________________________________ _____________________________________________________________________ (1 marks) (c) (i) What is the substance used in making fuse wires? __________________________________________________________________ _ __________________________________________________________________ _ (ii) Why? __________________________________________________________________ __________________________________________________________________ (2 marks) (d) What will happen to the fuse when there is a short circuit? ____________________________________________________________________ _ ____________________________________________________________________ _ (1 marks) (e) An electric appliance is marked 750 W, 240 V. What is the fuse rating suitable for the electric appliance?

(1 marks) 5) Figure 5 shows the physical changes of green pea seedling during germination. [Lihat sebelah SULIT 55/1

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Figure 5 (a) State the two types of germination (i) ____________________________________________________________________ (ii) ____________________________________________________________________ (2 marks) (b) What are the conditions needed for germination? (i) ____________________________________________________________________ (ii) ____________________________________________________________________ (iii) ____________________________________________________________________ (3 marks) (c) Where does the seedling obtain its food during germination? _____________________________________________________________________ (1 marks)

6) Figure 6 shows the arrangement of two bar magnets and four compasses P,Q, R and S.

Figure 6 (a) Define what magnetic field is. _____________________________________________________________________ [Lihat sebelah SULIT 55/1

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_____________________________________________________________________ (1 marks) (b) On Figure 6, show the correct direction of the compasses’ needles. (2 marks) (c) What is the region marked X in Figure 6 called? _____________________________________________________________________ (1 marks) (d) State two properties of magnetic field lines. (i) _____________________________________________________________________ (ii) _____________________________________________________________________ (2 marks)

Section B [20 marks] Answer all questions. [The time suggested to answer this section is 30 minutes] 7) Figure 7 shows various ways of reproduction P, Q, R, S and T.

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Figure 7 Based on your observations in Figure 7. (a) State any four ways of reproduction of P, Q, R, S and T. (i) P: _________________________________________________________________ (ii) Q: _________________________________________________________________ (iii) R: _________________________________________________________________ (iv) S: _________________________________________________________________ (v) T: _________________________________________________________________ (4 marks) (b) Classify the ways of reproduction P, Q, R, S and T in Figure & into two groups based on common characteristics. Name the organism belonging to each group.

(4 marks) 8) The diagram shows the apparatus set up for an experiment to show the relationship between current and voltage.

Figure 8 The reading switch is closed. M then is adjusted to different position. Readings of the ammeter and voltmeter are recorded as shown in the table below. Current (A) 0.2 0.5 P 0.8 1.0 Voltage (V) 0.5 1.0 1.5 2.0 2.5 (a) Name the apparatus M and state its function. (i) Apparatus M : ______________________________________________________ [Lihat sebelah SULIT 55/1

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(ii) Function of M : ______________________________________________________ (2 marks) (b) State the responding variable in this experiment. _____________________________________________________________________ (1 marks) (c) Based on the table above. Plot a graph of potential difference, V against current, I.

(4 marks) (d) Based on the plotted graph, (i) Determine the value of P. _____________________________________________________________________ (1 marks) (ii) State the relationship between voltage and current. ____________________________________________________________________ (2 marks) (e) Predict the reading of the ammeter when the voltmeter’s reading is 3.0 volt _____________________________________________________________________ (2 marks) KERTAS SOALAN TAMAT

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