Kelantan-Physics P3-Trial SPM 2007

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8/14/2019 Kelantan-Physics P3-Trial SPM 2007 http://slidepdf.com/reader/full/kelantan-physics-p3-trial-spm-2007 1/22 Section A [ 28 marks ] Answer all questions. 1 A student carries out an experiment to investigate the relationship between the length of air column, l , and the temperature, θ ,for the fixed mass of air. The air is trapped by mercury in the capillary tube as shown in Diagram 1.1. Seorang pelajar menjalankan satu eksperimen untuk mengkaji hubungan antara panjang turus udara, l, dengan suhu, θ , bagi satu jisim udara tertentu.Udara tersebut terperangkap dalam tiub rerambut oleh raksa seperti ditunjukkan dalam Rajah 1.1. DIAGRAM 1.1 RAJAH 1.1 l Mercury Raksa Capillary tube Tiub rerambut Trapped air Column Turus udara

Transcript of Kelantan-Physics P3-Trial SPM 2007

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Section A

[ 28 marks ]

Answer all questions.

1 A student carries out an experiment to investigate the relationship between the

length of air column, l , and the temperature, θ ,for the fixed mass of air.The air is trapped by mercury in the capillary tube as shown in Diagram 1.1.

Seorang pelajar menjalankan satu eksperimen untuk mengkaji hubungan antarapanjang turus udara, l, dengan suhu, θ , bagi satu jisim udara tertentu.Udara

tersebut terperangkap dalam tiub rerambut oleh raksa seperti ditunjukkan dalam Rajah 1.1.

DIAGRAM 1.1 RAJAH 1.1

l

Mercury Raksa

Capillary tubeTiub rerambut

Trapped air ColumnTurus udara

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The capillary tube and thermometer are placed into the beaker filled with water.The arrangement of the apparatus is shown in Diagram 1.2.Tiub rerambut dan termometer dimasukkan kedalam bikar berisi air.Susunan radas ditunjukkan pada Rajah 1.2.

DIAGRAM 1.2 RAJAH 1.2

Ice cubes are put into the beaker until the temperature, θ , reaches 0 ° C. The actual length of theair column, l , is shown in Diagram 1.3 on page

Ketulan ais dimasukkan ke dalam bikar itu sehingga suhu, θ ,mencapai 0 ° C . Bacaan sebenar panjang turus udara, l , ditunjukkan pada rajah 1.3 di halaman

Then the water is heated until the temperature, θ , reaches 20 ° C.The actual correcponding length of the air column, l , is shown in Diagram 1.4 on page

Kemudian air dipanaskan sehingga suhu, θ , mencapai 20 ° C. Bacaan sebenar panjang turus udara, l , yang sepadan ditunjukkan pada Rajah 1.4 di halaman

The procedure of the heating process is repeated with temperatures,θ = 30 ° C, 40 ° C, 50 ° C, 60 ° C and 70 ° C,

Prosedur proses pemanasan diulangi dengan suhu,θ = 30 ° C, 40 ° C, 50 ° C, 60 ° C dan 70 ° C

Capillary tubeTiub rerambut Heater

Pemanas

Thermometer

Termometer

Water Air

Beaker Bikar

Mercury Raksa

To power supply Ke bekalan

kuasa

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The actual correcponding length of the air column, l , are shown in Diagram 1.5, 1.6 , 1.7, 1.8 and1.9 on page

Bacaan sebenar panjang turus udara, l , yang sepadan masing-masing ditunjukkan pada Rajah1.5 ,1.6 , 1.7 , 1.8 dan 1.9 di halaman

(a) For the experiment described on page and , identify: Bagi eksperimen yang diterangkan di halaman dan , kenal pasti:

( i ) The manipulated variable Pembolehubah dimanipulasikan

………………………………………………………………………………[ 1 mark ]

( ii ) The responding variable Pembolehubah bergerakbalas

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

(iii) The constant variable Pembolehubah dimalarkan.

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

( b ) ( i ) Based on Diagrams 1.3, 1.4,1.5,1.6,1.7,1.8 and 1.9 on page andmeasure the lengths of air column, l.

Write the values of l on the space provided. Berdasarkan Rajah 1.3, 1.4, 1.5, 1.6, 1.7, 1.8 dan 1.9 pada halaman

dan , ukur panjang turus udara, l.Tuliskan nilai l pada ruang yang disediakan.

[ 2 marks ]

( ii ) Tabulate your results for θ and l in the space below. Jadualkan keputusan anda bagi θ dan l pada ruang di bawah.

[ 5 marks ]

( c ) On the graph paper on page , draw the graph of l against θ . Pada kertas graf di halaman , lukiskan graf l melawan θ .

[ 5 marks ]

( d ) Use your graph in ( c ), to state the relationship between l and θ . Menggunakan graf anda di ( c ),nyatakan hubungan antara l dengan θ .

…………………………………………………………………………………[ 1 mark ]

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DIAGRAM 1.3 DIAGRAM 1.4 RAJAH 1.3 RAJAH 1.4

θ = 0 ° C θ = 20 ° C

l = ___________ l = ____________

l

l

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DIAGRAM 1.5 DIAGRAM 1.6 RAJAH 1.5 RAJAH 1.6

θ = 30 ° C θ = 40 ° C

l = ___________ l = ____________

l l

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DIAGRAM 1.7 DIAGRAM 1.8 RAJAH 1.7 RAJAH 1.8

θ = 50 ° C θ = 60 ° C

l = ___________ l = ____________

l l

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DIAGRAM 1.9 RAJAH 1.9

θ = 70 ° Cl = ___________

NO MARKING CRITERIA MARK SUB TOTAL

1(a) (i) State the manipulated variable correctly- temperature/ θ 1 1

l

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( ii )

( iii )

( b ) i )

( ii )

State the responding variable correctly-Length/ l

State the constant variable correctly- pressure of the trapped air/ diameter of capillary/

Mass of the air

State the values of l correctly

-all correct- at least two correct

Tabulate θ and l correctly – θ and l shown in the table – State the units of θ and l – All values of l is filled – All values of θ is filled – All values of l are conssistenly to one decimal/

or two decimal point

θ / ° C l / cm0

203040506070

7.17.67.98.18.48.79.0

1

1

21

11111

1

1

2

5

NO MARKING CRITERIA MARK SUB TOTAL

1 ( c ) Draw a complete graph of l against θ

Tick √ based on the following aspect

A. Show l on Y axis and θ on X axisB. State the units of the variable correctlyC. Both axes are marked with uniform scaleD. All seven points are plotted correctlyE. Best straight line is drawnF. Show the minimum size of graph at least 5x4

Score:

√√√√√√√

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1 ( d )

Number of ticks Score7

5-63-421

54321

State the correct relationship between l and θ

- l increase linearly with θ

5

1

5

1

Total : 16

INEORMATION FOR CANDIDATES

1. This question paper consists of two sections : Section A and Section B.

2. Answer all questions in section A . Write your answers for Section A in the spaces providedin the question paper.

3. Answer one question from section B .

4. The time suggested to complete Section A is 60 minutes and Section B is 30 minutes.

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2.

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2

10

Vs/V

Vp0 2 4 6 8 10 12 14

4

6

8

12

14

16

18

20

22

24

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A student carries out an experiment to investigate the relationship between the secondary voltage,Vs, and the primary voltage, Vp of a transformer. The results of the experiment is shown in thegraph of Vs against Vp as in Diagram 2.1.

DIAGRAM 2.1Rajah 2.1

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Seorang pelajar menjalankan satu eksperimen untuk mengkaji hubungan antara voltan sekunder,Vs, dengan voltan primer, Vp bagi sebuah transformer. Keputusan eksperimen ditunjukkan oleh graf Vs melawan Vp pada Rajah 2.1.

(a) Base on the graph in Diagram 2.1, what is the relationship between the secondaryvoltage and the primary voltage? [1 markah ]

Berdasarkan graf dalam Rajah 2.1, apakah hubungan antara voltansekunder, Vs dengan voltan primer Vp? [1 markah ]

……………………………………………………………………………………

(b) (i) Calculate the gradient, m.Show on the graph how you determine m.

Hitungkan kecerunan, m.Tunjukkan pada graf bagaimana anda menentukan m.

m = ……………………….[3 marks][3 markah ]

(ii) Base on your result in b(i), state the type of transformer used in the experiment. Berdasar pada keputusan anda dalam b(i), nyatakan jenis transformer yang digunakandalam eksperimen.

………………………………………………………………………………………[1 mark][1 markah ]

(iii) The above transformer has 250 turns in the primary coil, calculate the number of turns in thesecondary coil.Transformer di atas mempunyai 250 lilitan pada gegelung primer, hitung bilangan lilitan

pada gegelung sekunder.

[2 marks][2 markah]

(c) (i) The efficiency of the transformer used in the experiment is given by equation, Kecekapan bagi transformer yang diguna dalam eksperimen di atas di beri oleh persamaan,

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Efficiency = (0.39 x m)100%

kecekapan = (0.39 x m)100%

Where m is gradient of the graph.Calculate the efficiency of the transformer.

Di mana m ialah kecerunan graf. Hitungkan kecekapan transformer di atas.

[2 marks][2 markah ]

(ii) State three factors that affected the efficiency of a transformer.Nyatakan tiga faktor yang mempengaruhi kecekapan suatu transformer.

……………………………………………………………………………………..

……………………………………………………………………………………..

……………………………………………………………………………………..

……………………………………………………………………………………..[3 marks]

[3 markah ]

Section B[12 marks] Answer any one question.

The time suggested to answer this section is 30 minutes.

3. Diagram 3.1 shows a man is in a leaking sampan. He noticed that the spurt coming from the holeat the bottom of the sampan is higher compared to the one from the side.

Rajah menunjukkan seorang lelaki berada dalam sebuah sampan yang bocor. Beliau mendapati pancutan air dari lubang pada dasar sampan lebih tinggi berbanding dengan lubang pada sebelah sisi yang lebih tinggi.

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Based on the above information and observation: Berdasarkan maklumat dan pemerhatian di atas:

a) State one suitable interence. Nyatakan satu inferens yang sesuai. [ 1 mark]

. b) State one suitable hypotheisis. Nyatakan satu hipotesis yang sesuai. [ 1 mark ]

c) With the use of apparatus such as a U tube, thistle funnel, measuring cylinder and the other apparatu, describe an experiment framework to investigate the hypothesis stated in 3 (b).

Dengan menggunakan radas seperti tiub U, corong tisel, silinder penyukat dan lain-lainradas yang sesuai, terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang dinyatakan dalam 3 (b).

In your description, state clearly the following: Dalam penerangan anda, jelaskan perkara berikut:

i) Aim of the experiment.Tujuan eksperimen.

ii) Variable of the experiment. Pemboleh ubah dalam eksperimen.

iii) List of apparatus and materials.Senarai radas dan bahan.

iv) Arrangement of the apparatus.Susunan radas.

bottom hole

side hole

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v) The procedure of the experiment which include the method of controllingmanipulated variable and the method of measuring responding variable.

Prosedur eksperimen termasuk kaedah mengawal pemboleh ubah dimanipulasikandan kaedah mengukur pemboleh ubah bergerak balas.

vi) The way you would tabulate the data.Cara anda akan menjadualkan data.

vii)The way you would analyse the data.Cara anda akan menganalisis data.

[ 10 marks]

4. Diagram 4.1 shows the brightness of bulb A when it is connected to the power supply usingcabel P. When it is connected to the power supply using cabel Q, the brightness of the bulb isshown as in Diagram 4.2.

Rajah 4.1 menunjukkan kecerahan mentol A apabila disambungkan kepada bekalan kuasamenggunakan kabel P. Apabila mentol itu disambungkan kepada bekalan kuasa menggunakankabel Q, kecerahan mentol adalah ditunjukkan dalam Rajah 4.2.

P

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FIGURE 4.1 RAJAH 4.1

FIGURE 4.2

RAJAH 4.2

Based on the above information and observation: Berdasarkan maklumat dan pemerhatian di atas:

a) State one suitable interence. Nyatakan satu inferens yang sesuai. [ 1 mark]

Q

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. b) State one suitable hypotheisis. Nyatakan satu hipotesis yang sesuai. [ 1 mark ]

c)With the use of apparatus such as a rheostat, contantan wire and the other apparatus,describe an experiment framework to investigate the hypothesisstated in 3 (b).

Dengan menggunakan radas seperti reostat, wayar konstantan dan lain-lain radas yang sesuai, terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang dinyatakandalam 3 (b).

In your description, state clearly the following: Dalam penerangan anda, jelaskan perkara berikut:

i) Aim of the experiment.Tujuan eksperimen.

ii) Variable of the experiment. Pemboleh ubah dalam eksperimen.

iii) List of apparatus and materials.Senarai radas dan bahan.

iv) Arrangement of the apparatus.Susunan radas.

v) The procedure of the experiment which include the method of controllingmanipulated variable and the method of measuring responding variable.

Prosedur eksperimen termasuk kaedah mengawal pemboleh ubah dimanipulasikan

dan kaedah mengukur pemboleh ubah bergerak balas. vi) The way you would tabulate the data.

Cara anda akan menjadualkan data.

vii)The way you would analyse the data.Cara anda akan menganalisis data.

[ 10 marks]

“SOALAN TAMAT”