Soalan Pecutan Akhir Fizik SPM 2010 Kertas 2 Set 3

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Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Question 1 Diagram 1 shows an instrument to measure a physical quantity.

Diagram 1

(a) What is the meaning of physical quantity? . [1 mark] (b) Based on Diagram 1 (i) State the type of error caused by the instrument. . [1 mark] Name the measurement unit reads by the instrument

(ii)

. [1 mark] (c) Complete the following sentence by ticking () the correct word. The reading taken using this instrument should be corrected by

Subtracting the reading with the error reading

Adding the reading to the error reading [1 mark]

Prepared by: Mohd Khairul Anuar SMK Seri Mahkota

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Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Question 2 Diagram 2 shows a type of nuclear reaction where the number of neutrons produced is X.

Diagram 2 (a) Name the type of nuclear reaction. ........................................................................................................................................................... [1 mark] (b) State the value of X. ........................................................................................................................................................... [1 mark] (c) Total atomic mass before reaction is 3.985 x 1025 kg and total atomic mass after reaction is 3.982 x1025 kg. Calculate, (i) The mass defect,

[2 marks] (ii) The amount of energy released.

[2 marks]

Prepared by: Mohd Khairul Anuar SMK Seri Mahkota

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Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Question 3 Diagram 3.1 shows the car moving along a road PQRS. Diagram 3.2 shows how the speed of the car varies with time as the car moves from P to S.R S

P v/ms-1

Q

Diagram 3.1

10 5

P

Q R

S Diagram 3.2

t/s 0 (a) 1 2

Based on the graph in Diagram 3.2 describe the motion of the car from (i) P to Q ... [1 mark] (ii) Q to R ...... [1 mark]

(b) Calculate the acceleration of the car from R to S.

[2 marks] (c) Calculate the distance travelled by the car from R to S

[2 marks]Prepared by: Mohd Khairul Anuar SMK Seri Mahkota 3

Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Question 4 Figure 4.1 shows the structure of a hydraulic jack. The crosssectional area of pistons, P and Q are 15cm2 and 500 cm2 respectively. A force of 150 N is exerted on piston P.

Diagram 4.1 (a) Name the physics principle applied in the hydraulic jack. ............................................................................................................. [1 mark] (b) Compare the pressure at piston P and the pressure at piston Q. ............................................................................................................. [1 mark] (c) Calculate the weight of the load that can be lifted by the piston Q.

[2 marks] (d) State the function of the release valve. .............................................................................................................. [1 mark] (e) State one suitable characteristic of the fluid used in the hydraulic jack. .............................................................................................................. [1 mark] The system in Figures 4.2 and 4.3 can be used to lift vehicles. When valve A is opened, valve B is closed and highly compressed air from the compressor exerts a force on the input piston.

Prepared by: Mohd Khairul Anuar SMK Seri Mahkota

4

Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Diagram 4.2

Diagram 4.3 (f) The compressed air exerts a maximum force of 500 N on the input piston of both hydraulic lifts in Figure 4.2 and 4.3. (i) Calculate the pressure acting on the input piston in Figure 4.2.

[2 marks] (ii) Calculate the forces acting at the output piston for both hydraulic lifts.

(iii)

[2 marks] Based on your answers in 4(b)(ii), which is the more suitable hydraulic lift to raise a van of mass 1800 kg ? ................................................................... [1 mark]

(g)

Explain how the vehicle can be lowered down, after the repair work is done. ............ [1 mark]

Prepared by: Mohd Khairul Anuar SMK Seri Mahkota

5

Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Question 5 Diagram 5.1 and diagram 5.2 show displacement against time graphs for two student A and B when they ran on a linear track. s/m s/m100

80

0

t/s10

0

t/s10

Diagram 5.1 (a) What is the meaning of displacement?

Diagram 5.2

.. [1 mark] (b) Based on Diagram 5.1 and Diagram 5.2, state one similarity and one difference to describe the displacement of two students. (i) Similarity: [1 mark] Difference: [1 mark] (c) (i) Compare the gradient of the graphs in Diagram 5.1 and Diagram 5.2. [1 mark] (ii) What physical quantity does the gradient of the graph represent to? [1 mark] (d) Based on your answer in (c)(ii), which student has a higher velocity? .. [1 mark]Prepared by: M ohd Khairul Anuar SM K Seri Mahkota6

(ii)

Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

(e) Another student C, initially at rest start to run with a uniform acceleration 5 ms2 for 10 s. Calculate the final velocity of the student.

[2 marks]

Question 6 Two apples with same size and mass, each of these apples are dipped into oil and water separately. The apples immersed at different levels in the two liquids. The density of the oil is 800 kg m3 and the density of water is 1000 kg m3.

Diagram 6.1

Diagram6.2

Diagram 6.1 and Diagram 6.2 illustrate the situation of the apples in the oil and in the water. (a) What is meant by mass? . [1 mark] (b) Based on Diagram 6.1 and Diagram 6.2 : (i) Compare the level of the apple in the oil and in the water. .. [1 mark] Compare the volume of liquid displaced by the apple in the oil and in the water .. [1 mark] Compare the density of oil and water. .. [1 mark]

(ii)

(iii)

Prepared by: M ohd Khairul Anuar SM K Seri Mahkota

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Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

(c) (i) Relate the volume of liquid displaced to the density of the liquid. . [1 mark] (ii) State the relationship between weight of the apple and the weight of the liquid displaced. . [1 mark] (d) Name the physics principle that explains the situation above. .. [1 mark] (e) A submarine can sail on the sea surface and under the sea by using the principle stated in (d). How a submarine at the seabed can float to the surface of the sea? .. [1 mark] Question 7 Diagram 7.1 shows a concrete water tank filled with water.

Diagram 7.1 (a) State a factor that affects the water pressure in the tank. ............................................................................................................................................. [1 mark] (b) (i) Compare the water pressure at P and Q .............................................................................................................................. [1 mark] Calculate the water pressure at Q. [Density of water = 1000 kg m3]

(ii)

[2 marks]

Prepared by: M ohd Khairul Anuar SM K Seri Mahkota

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Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

(c) Diagram 7.2 shows water flows from the concrete tank to the house water tank.

Diagram 7.2 (i) What is the factor that causes the water to flow from the concrete tank to the water tank in the house? ............................................................................................................................................... [1 mark] (ii) The flow of water from the concrete tank to the house will stop at level P. Explain why the supply stops? ............................................................................................................................................... ............................................................................................................................................... [2 marks] (d) (i) Suggest two modifications that can be done to ensure the water flow continously to the house water tank. ............................................................................................................................................. [2 marks]

(ii)

Draw a water tank that can withstand high water pressure .

[2 marks]

Prepared by: M ohd Khairul Anuar SM K Seri Mahkota

9

Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Question 8 Diagram 8 shows a 1000 W electric heater is being used to heat water in a beaker.

Diagram 8 (a) State the transformation of energy during the heating. .......................................................................................................................................................... [1 mark] (b) The mass of water is 1.2 kg and specific heat capacity of water is 4 200 J kg1 C1. The initial temperature of the water is 30C. Calculate; (i) The heat energy absorbed by the water to reach 100C.

[2 marks] (ii) The time taken for the water to boil.

[2 marks] (c) K, L, M and N are four different metals. These metals are used to design an efficient frying pan. Table 8 shows the characteristics of each metal. Metal Density/kgm3 Specific heat capacity Melting point/C K 1740 Low 1810 L 2800 High 642 M 8000 High 1550 N 9300 Low 1090 Table 8Prepared by: M ohd Khairul Anuar SM K Seri Mahkota10

Program Pecutan Akhir Fizik SPM 2010

Soalan Kertas 2 Set 3

Based on Table 8, state th