Physics Y10 Term 2 Exam Paper2

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<ul><li><p>8/22/2019 Physics Y10 Term 2 Exam Paper2</p><p> 1/5</p><p>1</p><p>A &amp; O Centre of Excellence Term 2 Examination 2013</p><p>Name : Physics Paper 2 Year 10</p><p>ANSWER ALL QUESTIONS [TOTAL 40 MARKS]</p><p>1. Two apples with same size and mass, each of these apples are dipped into oil and water</p><p>separately. The apples immersed at different levels in the two liquids. The density of the oil is 800 kg</p><p>m-3 and the density of water is 1000 kg m-3 .</p><p>Figure 3.1 and figure 3.2 illustrate the situation of the apples in the oil and in the water.</p><p>(a) What is meant by mass?</p><p>.................................................................................................................................................. [1]</p><p>(b) Based on Figure 3.1 and Figure 3.2:</p><p>(i) Compare the level of the apple in the oil and in the water.</p><p>.................................................................................................................................................. [1]</p><p>(ii) Compare the volume of liquid displaced by the apple in the oil and in the water</p><p>.......................................................................................................................................... [1]</p><p>(iii) Compare the density of oil and water.</p><p>.................................................................................................................................................. [1]</p><p>(c) (i) Relate the volume of liquid displaced to the density of the liquid.</p><p>.................................................................................................................................................. [1]</p><p>(ii) State the relationship between weight of the apple and the weight of the liquid displaced.</p><p>.................................................................................................................................................. [1]</p><p>(d) Name the physics principle that explains the situation above.</p><p>................................................................................................................................................... [1]</p><p>(e) A submarine can sail on the sea surface and under the sea by using the principle stated in (d).</p><p>How a submarine at the seabed can float to the surface of the sea?</p><p>................................................................................................................................................... [1]</p><p>[Total: 8]</p><p>FIGURE 1.1 FIGURE 1.2</p></li><li><p>8/22/2019 Physics Y10 Term 2 Exam Paper2</p><p> 2/5</p><p>2</p><p>2. A fisherman finds that his boat is at different levels in the sea and in the river, although the boat</p><p>carries the same load. The density of sea water is 1 025 kg m-3</p><p>and of river water is 1 000 kg m-3</p><p>.</p><p>Figure 1 and 2 illustrate the situation of the boat in the sea and in the river.</p><p>(a) What is meant by density?</p><p>................................................................................................................................................... [1]</p><p>(b) Using Figure 1 and 2,</p><p>(i) Compare the level of the boat in the sea water and in the river water.</p><p>................................................................................................................................................... [1]</p><p>(ii) Compare the volume of water displaced by the boat in the sea and in the river.</p><p>................................................................................................................................................... [1]</p><p>(iii) Compare the density of sea water and river water.</p><p>................................................................................................................................................... [1]</p><p>(c)(i) Relate the volume of water displaced to the density of water.................................................................................................................................................... [1]</p><p>(ii) Deduce relationship between weight of the boat and the weight of the water displaced.</p><p>................................................................................................................................................... [1]</p><p>(d) Name the physics principle that explains the situation above.</p><p>................................................................................................................................................... [1]</p><p>(e) A submarine can sail on the sea surface and under the sea by using the principle stated in</p><p>(d). How a submarine on the surface of the sea can submerge?</p><p>...................................................................................................................................................</p><p>................................................................................................................................................... [1]</p><p>[Total: 8]</p><p>FIGURE 2.1 FIGURE 2.2</p></li><li><p>8/22/2019 Physics Y10 Term 2 Exam Paper2</p><p> 3/5</p><p>3</p><p>3. A farmer has two vehicles with the same mass and the same number of wheels.</p><p>(a)</p><p>Based in the Diagram 3.1 and Diagram 3.2:</p><p>(i) Compare the contact area between the wheels in the Diagram 3.1 and Diagram 3.2.</p><p>................................................................................................................................................... [2]</p><p>(ii) Compare the weight of the vehicle 1 and vehicle 2.</p><p>................................................................................................................................................... [2]</p><p>(b) Which vehicle should the farmer use when driving across his fields when the ground is very soft?</p><p>Give your reasons.</p><p>...................................................................................................................................................</p><p>................................................................................................................................................... [2]</p><p>(c) Name the physics concept involved.</p><p>................................................................................................................................................... [1](d) A manufacturer of car wheels estimates that the area of a car wheel in contact with the road</p><p>about the same as the area of a persons shoe in contact with the ground. A car weighs 10 000 N and</p><p>a driver weighs 500 N</p><p>(i) Calculate the ratio pressure of car on ground : pressure of driver on ground. The car has 4 tyres</p><p>and a driver has 2 feet) [2]</p><p>(ii) Suggest why it might be a good idea to reduce the pressure of the air in car tyres if the car is to</p><p>be driven over soft sand.</p><p>................................................................................................................................................... [1][Total: 10]</p><p>FIGURE 3.1 FIGURE 3.2</p></li><li><p>8/22/2019 Physics Y10 Term 2 Exam Paper2</p><p> 4/5</p><p>4</p><p>4. Diagram 4.1 shows a horizontal tube AB with both of it ends are closed with rubber stoppers. The</p><p>tube is also fixed with three vertical tubes X,Y and Z. Water is then poured into the horizontal tube</p><p>AB.</p><p>(i) Mark the water level in the vertical tube X,Y and Z in figure 4.1. [1]</p><p>(ii) State one physical quantity that affected the water level in the above diagram.</p><p>................................................................................................................................................... [1]</p><p>(c) A ventury tube AB now is replaced with the ventury tube shown in diagram 4.2. Water flows</p><p>uniformly from end A to end B of the tube and it is found that the water level of tube P is at Z.</p><p>(Density of water =1000 kgm-3)</p><p>(i) Compare the water level in the vertical tube P,Q and R.</p><p>................................................................................................................................................... [2]</p><p>(ii) Name the principal involve in b(i).</p><p>................................................................................................................................................... [1]</p><p>(iii) By neglecting atmospheric pressure, calculate the pressure caused by the water column at pointX. [2]</p><p>[Total: 7]</p><p>FIGURE 4.1 FIGURE 4.2</p></li><li><p>8/22/2019 Physics Y10 Term 2 Exam Paper2</p><p> 5/5</p><p>5</p><p>5. Figure shows a cyclist is riding along a road at a constant velocity. The total of downward force</p><p>acting on the bicycle and the cyclist is 650 N. The normal reaction of the front tyre is 300 N and</p><p>forward thrust is 200 N.</p><p>(a) Calculate the normal reaction, P acting on the rear tyre. [2]</p><p>(b) Give one reason why the total resistance, Q should be 200 N at that moment?</p><p>................................................................................................................................................... [1]</p><p>(c) What will happen when the forward thrust is increased?</p><p>................................................................................................................................................... [1]</p><p>(d) Why the cyclist thrown forward when the bicycle runs over a stone?</p><p>................................................................................................................................................... [1]</p><p>(e) Explain why the cyclist can gets serious injuries if he falls into the road which the surface is very</p><p>hard.</p><p>................................................................................................................................................... [2]</p><p>[Total: 7]</p></li></ul>