Question Paper 3 (Topic 4 - Heat P3)

7/27/2019 Question Paper 3 (Topic 4 - Heat P3)

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PAPER 3- (TOPIC 4: HEAT EXPERIMENT)

1 A student carried out an experiment to investigate the relationship between the temperatureof a liquid when heated and its mass m. The student used the same immersion heater to

heat up different masses of the liquid in a constant time. The initial temperature,o

, of the

liquid which is constant and the final temperature, , of the liquid after being heated arerecorded.

The result of the experiment is shown in a graph of againstm

1shown in Figure 2.1.

(a) The initial temperature,o

, of the liquid can be determined from the intercept of the -axis.

Show on the graph on Figure 2.1 how you determineo

and write the value below.

o = .. [2 marks]


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(b) State the relationship between and m.

..

[1 mark](c) The specific heat capacity, c, of the liquid is given by the equation;

kc

4

104.5

Where kis the gradient of the graph.

(i) Calculate the gradient of the graph of againstm

1.

Show on the graph how you determine the gradient. [3 marks]

(ii) Calculate the value of the specific heat capacity, c, of the liquid.[2 marks]

(d) Determine the mass, m, of the heated liquid if the final temperature, , is 32oC.

Show on the graph how you determine the value of m.[3 marks]

(e) State one precaution that should be taken during this experiment.. ..............

[1 mark]


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2. A student carries out an experiment to investigate the relationship between the length of aircolumn , , and the temperature , , for a fixed mass of air. The air is trapped by

concentrated sulphuric acid in a capillary tube. Diagram 2.1 shows the thermometer andcapillary tube tied on a metre rule. The sealed end of the capillary tube is placed at the zeromark on the scale of the ruler.

The thermometer and capillary tube are placed into a beaker filled with water. TheArrangement of the apparatus is shown in Diagram 1.2

Ice cubes are put into the beaker until the temperature , , reaches 0 C . The actualreading of the length of the air column , , is shown in Diagram 1.4.Then the beaker is heated until the temperature, , reaches 20 C. The actual correspondingreading of the length of the air column , is shown in Diagram 1.5 .The procedure of the heating process is repeated with temperatures, = 30 C, 40 C, 50 C ,60 C and 70 C.

The actual corresponding readings of the lengths of the air column, are shown in Diagrams 1.6,1.7 ,1.8 , 1.9 and 1.10.(a) For the experiment described on page 1, identify :

i)The manipulated variable

............................... [1 mark]ii)The responding variable........................... [1 mark]


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iii) The constant variable........................... [1 mark]

(b) (i) Diagram 1.3 shows the meniscus of the concentrated sulphuric acidinside the capillary tube.

State the correct position of the eye while taking the reading of the length of theair column.

............................ [1 mark]

(ii) Based on Diagrams 1.4 , 1.5 , 1.6 , 1.7 , 1.8 , 1.9 and 1.10, determine the lengths of aircolumn , , and their corresponding temperature , .

Tabulate your results for and in the space below


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(c) On a piece of graph paper , plot a graph of against . [5 marks]

(d) Based on your graph , state the relationship between and .

.......................[1 mark]

(e) State one precaution that should be taken to obtain the accurate readings of .

..........................

................[1 mark]

3. A student carried out an experiment to investigate the relationship between the velocity of

sound wave, v and air temperature ,T.

Seorang pelajar menjalankan satu eksperimen untuk mengkaji hubungan diantara

Halaju bunyi , dengan suhu udara T.

The results of the experiment are shown in the graph ofv2against Tin Figure 3.1.

Keputusan eksperimen itu ditunjukkan oleh graf v 2 lawan T, pada Rajah 3.1

(a ) Based on the graph in Diagram 3.1.

Berdasarkan graf pada Rajah 3.1

(i) State the relationship between v and T ?

Nyatakan hubungan antara v dengan T?

. [1 mark]

(ii) determine the value ofv when T = 0 C

Show on the graph , how you determine the value ofv

Tentukan nilai v apabila T =0 C. Tunjukkan pada graf itu bagaimana anda menentukan nilai v

v = [2 marks]


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DIAGRAM 3.1

b) The specific heat capacity of air c , is given by the formula c =k

1

where kis the gradient of the graph.

Muatan haba tentu bagi udara,c diberi oleh rumus c =k

1

dimana k ialah kecerunan graf.

i) Calculate the gradient of the graph , k, ofv 2 against T.

Show on the graph how you determine the gradient.

Hitungkan kecerunan bagi graf, k , v 2 melawan M.

Tunjukkan pada graf bagaimana anda menentukan kecerunan itu.

k= . [3 marks]


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(ii) Determine the value, c, of the air

Tentukan nila c bagi udara.

c =.. [2 marks ]

(c) Determine the sound wave velocity in the air , v, if the temperature of air = 300C

Show on the graph , how you determine the value ofv.

Tentukan halaju gelombang bunyi di udara , v, jika suhu udara = 300C

Tunjukkan di atas graf bagaimana anda menentukan nilai v.

[ 3 marks]

(c) Determine the sound wave velocity in the air , v, if the temperature of air = 300C

Show on the graph , how you determine the value ofv.

Tentukan halaju gelombang bunyi di udara , v, jika suhu udara = 300C

Tunjukkan di atas graf bagaimana anda menentukan nilai v.

[ 3 marks]

(d) State one precaution that can be taken to improve the accuracy of the readings in this

experiment.

Nyatakan satu langkah berjaga- jaga yang boleh diambil untuk memperbaiki ketepatan

bacaan dalam ekperimen ini.

[1 mark]


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4. Diagram 4.1 shows a half glass of hot coffee that is left for 10 minutes.Diagram 4.2 shows afull glass of similar hot coffee that is left for the same time.It is notice that the hot coffee inDiagram 4.1 cools down faster than Diagram 4.2.

Based on the information and observation above:

(a) State one suitable inference. (1mark)

(b) State one suitable hypothesis (1mark)

(c) With the use of apparatus such as immersion heater,beaker and other

apparatus,describe an experiment framework to investigate the hypothesis stated in

4(b).In your description,state clearly the following:

(i) Aim of experiment

(ii) Variables in the experiment

(iii) List of apparatus and materials.

(iv) Arrangement of the apparatus.

(v) The procedure of the experiment which include the method of controlling the

manipulated variable and the method of measuring the responding variable.

(vi) The way you would tabulate the data.

(vii) The way you would analyse the data.

(10marks)

Diagram 4.1Diagram 4.2


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5.Diagram 5 shows a dented ping pong ball then put in a basin that consist cold water (Diagram5(a), warm water(Diagram 5(b)), and hot water (Diagram 5 (c)). Observe the shape of pingpong ball and their surroundings.

Based on the information and observation above:

(a) State one suitable inference. (1mark)

(b) State one suitable hypothesis (1mark)

(c) With the use of apparatus such as a thermometer, capillary tube, bunsen burner and

other apparatus,describe an experiment framework to investigate the investigate the

hypothesis stated in 5(b).

In your description,state clearly the following:

(i) Aim of experiment

(ii) Variables in the experiment

(iii) List of apparatus and materials.

(iv) Arrangement of the apparatus.

(v) The procedure of the experiment which include the method of controlling the


(vi) The way you would tabulate the data.

(vii) The way you would analyse the data.

(10marks)


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Diagram 6.1 Diagram 6.2

Diagram 5.1 Diagram 7.2

6. Diagram 6.1 shows a balloon during cool day.During hot day the balloon becomesbigger as shown in diagram 6.2.

Based on the information and observation above:(a) State one suitable inference. (1mark)(b) State one suitable hypothesis (1mark)(c) With the use of apparatus such as Bourdon Gauge and other apparatus, describe an

experiment framework to investigate the investigate the hypothesis stated in 6(b).In your description,state clearly the following:(viii) Aim of experiment(ix) Variables in the experiment(x) List of apparatus and materials.(xi) Arrangement of the apparatus.(xii) The procedure of the experiment which include the method of controlling the

manipulated variable and the method of measuring the responding variable.(xiii) The way you would tabulate the data.(xiv) The way you would analyse the data.

(10marks)7.Diagram 7.1 shows a boy accidentally spilt a few drops of hot noodles soup onto his

hands and felt slight pain. Later on, he accidentally spilt the whole bowl of hot noodle souponto himself and felt extreme pain as shown in diagram 7.2.

Based on the information and observation above:(a) State one suitable inference. (1mark)(b) State one suitable hypothesis (1mark)(c) With the use of apparatus such as power supply, beaker, immersion heater and other

apparatus,describe an experiment to the investigate the hypothesis stated in 7(b).In your description,state clearly the following:

(i) Aim of experiment(ii) Variables in the experiment(iii) List of apparatus and materials.(iv) Arrangement of the apparatus.(v) The procedure of the experiment which include the method of controlling the


(vi) The way you would tabulate the data.(vii) The way you would analyse the data. (10marks)

Diagram 7.1


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ANSWER

1.(b) Q is inversely proportional to m.(c) (i)

kg10.3

0.60

6.2

060.0

27.3-33.5

0C

BC

ABk

(ii)

11-4

4

Jkg104.4

3694

10.3

105.4

C

c

o

(d) 0.4551

mwhen = 32 C

o

kg2.2

2.198

0.455

1

m

(e) The liquid must be stirred always to maintain a uniform temperature

2.(a) (i)Temperature / (ii) Length / (iii)Pressure of the trapped air / diameter of the capillary tube

(b) (i) Top section of the meniscus

(ii) - and shown in the table 1m- State the and units of correctly 1m-All values of are correct 2m-The values of are consistent to one decimal point. 1m

/ C / cm0 7.1

20 7.6

30 7.9

40 8.1

50 8.4

60 8.7

70 9.0

(c) A. Show on the Y axis and on X axis


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B. State the units of the variables correctly C. Both axes are marked with uniform scale D.All 7 points are plotted correctly E. Best straight line is drawn F. Show the minimum size of graph at least 5 x 4 ( 2cm x 2 cm ) square

counted from the origin until the furthest point.

Score

Number ofticks

Score

7

5-6

3-4

2

1

5

4

3

2

1

(d) increases linearly with

(e) The capillary tube and the ruler scale must be parallel // trapped air column mustalways be below the water level.

3

(a) (i)

(a) (ii)

(a) (iii)

(b)

(c)

1

1

1

1

1

1

1

1

1

1

1

State the change correctly

Decrease

State the value of-shows graph exstrapolation-shows the corresponding arrow-18.5

0C // 18.0

0C // 19.0

0C (reject without unit)

Calculate the gradient of the graph, h and state the

value of h with the acceptable range

-Draw a suffiecienly large triangle to calculate the gradientof the graph.-Correct substitution(follow candidates triangle)

-State value of the gradient with correct unit.

The gradient of the graph is14.550

C kg

Correct substitution to the formula

gradient

Qc

55.14

101.6 4gradient

4192.4 J kg-1

0C

-1

Stir the water gently with the heater to ensure that heat isdistributed uniformly to all part of the water.

1

3

3

3


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1

Make sure the insulating jacket is covered all part of thebeaker.

2

Total 12 12

4. [ Answer fromwww.banksoalanspm.com]Trial Johor Paper 3 2010 )

5.

5(a) Temperature influence the size of pingpong ball.

5(b) When the temperature increases, the height of air trapped also increases.

5(c)(i) To study the relationship between temperature and volume/height

5(c)(ii) MV temperatureRV Height of air traped/volumeFV pressure

5(c)(iii) Capillary tube, thermometer, beaker, ruler, stirrer, tripod stand,

bunsen burner, rubber bands and retort stand with clamp.5(c)(iv) Charles Law experiment.5(c)(v) The experiment is set up as shown.

When the thermometer is = 30 C, the height of the air column, h isread on the ruler scale and record.Repeated the experiment for values of temperature, = 40 C, 50 C,

60 C and 70 C.

5(c)(vi)

Temperature, / C Height of airtrapped,h/cm

30

40506070
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5(c)(vii)

TOTAL 12

6. [ Answer fromwww.banksoalanspm.com]SBP Paper 3 2009 )

7. [ Answer fromwww.banksoalanspm.com]SBP Paper 3 20010 )
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Question Paper 3 (Topic 4 - Heat P3)