SPM Physics Summative Test 3 - Form 4 Chapter 3 4 5

SPM Physics Summative Test 3 – Form 4 Chapter 3,4 and 5 [25 marks]

Paper 1

Time: 35 minutes

This paper consists of 25 questions. Answer all questions. Every question is followed by four alternative answers A, B, C and D. For each question, choose one answer only. 1

Diagram 1 shows a block with the dimensions of 1 m × 2 m × 4 m. The weight of the block is 100 N.

Which of the following graphs shows the correct relationship between the pressure exerted by the water, p and depth, h of the water? A

Diagram 1

B

Find the minimum pressure that can be exerted by the block on the floor. A 50.0 N m-2 B 25.0 N m-2 C 12.5 N m-2 D 10.0 N m-2 2

Diagram 2 shows a fish in the sea.

C

D Diagram 2 Calculate the pressure exerted by the water on the fish. [Density of water = 1 000 kg m−3] A 7 × 104 Pa B 7 × 107 Pa C 7 × 105 Pa D 7 × 101 Pa 3

130 g of soft drink is mixed with 650 cm3 of water. The volume of the mixture becomes 800 cm3. Calculate the density of the mixture. [Density of water is 1 g cm−3] A 0.16 g cm−3 B 0.81 g cm−3 C 0.98 g cm−3 D 1.03 g cm−3

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The density of substance X is 9.80 × 105 kg m−3. Substance X will sink in the liquid Liquid Density of liquid/ kg m−3 P 9.83 × 105 A Q 3.87 × 106 B R 4.72 × 105 C S 1.24 × 106 D

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Diagram 3 shows water spurting out from a aluminium can at different depths.

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Which statement is correct about the Brownian motion of smoke particles? A Smoke particles are smaller than air molecules B Smoke particles are randomly hit by air molecules C Smoke particles are randomly hit by other smoke particles D Smoke particles have lower density than the air molecules

Diagram 3

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7

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What happens to the gas molecules in a sealed jar at room temperature when the jar is put inside a refrigerator? A The mass of the gas molecules decreases B The size of the gas molecules decreases C The distance between the gas molecules decreases D The kinetic energy of the gas molecules increases

Diagram 6 Which comparison is correct? A FS + FT = 0 B FS = FT C FS < FT D FS > FT

Diagram 4 shows a bowl of hot water is covered with an airtight lid and left to cool.

11 Diagram 7 shows a wing in the shape of an aerofoil moves through air.

Diagram 4

Diagram 7

The lid is difficult to lift when the water is cold because A the water vapour condenses on the lid B the volume of water in the bowl has increased C the adhesive force between air molecules and the lid is strong D the air pressure inside the bowl is less than the atmospheric pressure 9

Which position A, B, C or D, experiences the lowest pressure? 12 What is the maximum temperature increase of the water at the bottom of a 247 m waterfall? [Gravitational force, G = 10 m s−2, specific heat capcity of water = 4.2 × 103 J kg−1°C] A 0.06°C B 0.59°C C 1.70°C D 17.00°C

Diagram 5 shows an excavator using the shovel and arm to carry the soil.

13 The diagrams show four types of metal block of the same mass being heated using the same quantity of heat for 10 minutes. Which metal block shows the highest increase in the temperature? A

Diagram 5 Which principle is used in the arm of the excavator? A Pascal's principle B Archimedes's principle C Principle of equilibrium of forces D Principle of conservation of momentum

B

C 10 Diagram 6 shows two identical glass jars, S and T, containing metal balls are floating on water. All the metal balls have the same size but different densities. The upthrust on glass jars S and T are FS and FT respectively.

D

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14 Steam at temperature of 100°C is piped to 8 kg of water at the temperature of 18°C until the water reaches the boiling point. The mass of the steam required is [Specific latent heat of vaporization of water = 2.26 × 106 J kg−1, specific heat capacity of water = 4.2 × 103 J kg−1°C−1] A 0.41 kg B 0.61 kg C 0.82 kg D 1.22 kg

18 Diagram 10 shows two air bubbles, P and Q, under the surface of water with different depths.

Diagram 10

15 Diagram 8 shows a process of change of state.

What is the ratio of the volume of air bubble P to the volume of air bubble Q? [Atmospheric pressure = 10 m water] A 12 : 19 B 2:9 C 19 : 12 D 9:2

Diagram 8 The latent heat of vaporization is absorbed at process A, B, C, or D?

19 The air pressure in a container is 5.8 Pa at the temperature of 12°C. When the air pressure increases to 6 Pa, the temperature of the air is A 10.91°C B 12.41°C C 21.83°C D 294.83°C

16 Diagram 9 shows the condition of a bottle which initially contains hot air, before and after being put into a basin of ice.

20 Diagram 11 shows two lorries, P and Q, travelling in the opposite directions, pasing through a sharp bend.

Diagram 9 Which of the following laws explained the situation? A Euler's law B Boyle's law C Charles's law D Newton's law

Diagram 11

17 Which of the following graphs represents the equation, PV = constant? A

Choose the mirror that is most suitable to place at N so that the driver in lorry P can see the lorry Q. A

B B

C C

D

D

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24 Diagram 15 shows light rays directed into glass block at different incident angles.

21 Which of the following diagrams shows the correct reflection of light from a concave mirror? [F is the principal focus] A

Diagram 15

B

The critical angle of the glass is A P B Q C R D S 25 Diagram 16 shows the formation of the image of an object by a convex lens.

C

D

Diagram 16 Given that the height of the object is 2 cm, find the height of the image. A 6.00 cm B 4.00 cm C 3.00 cm D 2.00 cm

22 Diagram 13 shows a ray of light travelling from air to liquid X at an angle of incidence of 45°.

Diagram 13 Find the refractive index liquid X. A 1.67 B 1.13 C 0.60 D 0.30 23 Diagram 14 shows the apparent position of a fish.

Diagram 14 Which position, A, B, C or D is the actual position of the fish?

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[15 marks] Paper 2 – Section A 1 Diagram 1 shows the structure of an optical instrument X used in a submarine.

Time: 30 minutes

Diagram 1 (a) Name the optical instrument X. [1 mark] (b) Two glass prisms must be placed inside the instrument optical X so that the object can be seen by the observer. The position of one of the glass prism is as shown. (i) In Diagram 1, draw and shade the missing prism in box T. [1 mark] (ii) Explain why the prism in optical instrument X are placed as in (b)(i). [1 mark] (c) (i) In Diagram 1, complete the path of the light ray from the object to the observer's eye. [1 mark] (ii) State one characteristic of the image observed. [1 mark] (d) The refractive index of the glass prism is 1.75. What is the critical angle of the glass prism?

[2 marks]

[20 marks] Paper 2 – Section C 3 Diagram 10.1 shows a cross-sectional view of a submarine.

Time: 30 minutes

Diagram 10.1 The working principle of the submarine is based on Archimedes' principle. (a) (i) State Archimedes' principle. [1 mark] (ii) Explain how a submarine is able to float and sink in the sea. [4 marks] (b) Diagram 10.2 shows a hot air balloon.

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Diagram 10.2 You are required to investigate the characteristics of a hot air balloon as shown in Table 4. Hot air balloon P Q R S

Burner One burner One burner Two burners Two burners

Volume of envelope Melting point of fabric Large Low Small High Large High Small Low Table 4

Material of basket Sturdy and flexible Sturdy and hard Sturdy and flexible Sturdy and hard

Explain the suitability of each characteristic of the hot air balloon. Determine the most effective hot air balloon that can fly high, fast and safe. [10 marks] (c) In a certain hot air balloon, the volume of its envelope is 55 m . If the overall weight of the balloon is 55 kg, calculate: [Density of air = 1.25 kg m−3, gravitational pull = 10 N kg−1] (i) the buoyant force acting on the balloon, [2 marks] (ii) the acceleration of the balloon. [3 marks] 3

(12 marks) Time: 1 hour 30 minutes Paper 3 4 A student carries out an experiment to investigate the relationship between the volume, V, and the temperature, θ, of a fixed mass of gas. The results of the experiment are shown in the graph of V against θ in Diagram 3.

Diagram 3

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(a) Based on the graph in Diagram 3: (i) In the experiment, the mass of the gas must be kept constant. Name one other variable that must also be kept constant. [1 mark] (ii) What happens to V as θ increases? [1 mark] (iii) Determine the value of θ when V = 0 cm3. Show on the graph how you determine the value of θ. θ= [2 marks] (b) If the temperature of the gas was measured in Kelvin, the graph of V against θ would pass through the origin. (i) What is another name for the value of θ in 3(a)(iii)? [1 mark] (ii) If T is the temperature in Kelvin and given that T = (θ + 273), determine T when θ = -115°C. [1 mark] (c) Calculate the gradient, m, of the graph. Show on the graph how you calculate the value of m. m= [3 marks] (d) The gas constant, R, is given by: R = km where k = 1.51 × 107 Pa mol−1, and m is the gradient of the graph. Calculate the value of R.

[2 marks] (e) State one precaution that can be taken to increase the accuracy of the experiment. [1 mark]

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