7 (Bahagian D- 1)

Modul Jom Lulus Fizik (Bahagian D) 2015

1 An experiment is carried out to investigate the relationship between the length of the air column, ℓ, and the temperature, T, for a fixed mass of air. Concentrated sulphuric acid is used to trap the air in a capillary tube. Diagram 6.1 shows a metre rule tied with a thermometer and the capillary tube.Satu eksperimen dijalankan untuk mengkaji hubungan antara panjang turus udara, ℓ, dan suhu, T, bagi satu jisim udara tertentu. Asid sulfurik pekat digunakan untuk memerangkap udara dalam tiub rerambut. Rajah 6.1 menunjukkan sebuah pembaris meter diikat dengan satu termometer dan tiub rerambut.

Diagram 6.1Rajah 6.1

Diagram 6.2 shows the apparatus are placed into a beaker filled with water.Rajah 6.2 menunjukkan radas tersebut dimasukkan ke dalam bikar yang berisi air.


Ice cubes are put into the water until the temperature, T, reaches 0°C. The actual reading of the length of the air column, ℓ, is shown in Diagram 6.3.

DISEDIAKAN OLEH : EN AZZAHYIRUDDIN BIN AHYANUDDIN SMK TAMAN RINTING 2 1

MODUL SOALAN 1 KERTAS 3


Ketulan ais dimasukkan ke dalam air sehingga suhu, T, mencapai 0°C. Bacaan sebenar penjang turus udara, ℓ, ditunjukkan pada Rajah 6.3.


The water is then heated until the temperature, T, reaches 20°C and the actual corresponding reading of the length of the air column, ℓ, is shown in Diagram 6.4. The procedure of the heating process is repeated with temperature, T = 30°C, 40°C, 50°C, 60°C and 70°C and the actual corresponding readings of the lengths of the air column, ℓ, is shown in Diagram 6.5, 6.6, 6.7, 6.8 and 6.9.Air kemudian dipanaskan sehingga suhu, T, mencapai 20°C dan bacaan sebenar panjan turus udara, ℓ, yang sepadan ditunjukkan pada Rajah 6.4. Prosedur proses pemanasan diulangi dengan suhu, T = 30°C, 40°C, 50°C, 60°C dan 70°C dan bacaan sebenar panjan turus udara, ℓ, yang sepadan masing-masing ditunjukkan pada Rajah 6.5, 6.6, 6.7, 6.8 dan 6.9.







Diagram 6.8Rajah 6.8 Diagram 6.9

Rajah 6.9

(a) For the experiment described, identify:Bagi eksperimen yang diterangkan, kenal pasti:

(i) The manipulated variablePembolehubah dimanipulasikan

[1 mark][1 markah]

(ii) The responding variablePembolehubah bergerak balas

[1 mark][1 markah]

(iii)

The constant variablePembolehubah dimalarkan

[1 mark][1 markah]

(b) (i) Diagram 6.3 shows the meniscus of the concentrated sulphuric acid inside the capillary tube. State the correct position of the eye while taking the reading of the length of the air column.Rajah 6.3 menunjukkan meniskus asid sulfurik pekat di dalam tiub rerambut. Nyatakan kedudukan mata yang betul semasa mengambil bacaan panjang turus udara.

[1 mark][1 markah]



(ii) Based on Diagram 6.4, 6.5, 6.6, 6.7, 6.8 and 6.9, determine the temperature, T, and their corresponding lengths of the air column, ℓ. Tabulate your results.Berdasarkan Rajah 6.4, 6.5, 6.6, 6.7, 6.8 dan 6.9, tentukan suhu, T, yang sepadan dengan panjang turus udara, ℓ, masing-masing. Jadualkan keputusan anda.

[5 marks][5 markah]

(c) Plot a graph of ℓ against T on a piece of graph paper.Lukiskan graf ℓ melawan T pada sehelai kertas graf.

[5 marks][5 markah]

(d) State the relationsip between ℓ and T based on the graph in 6(c).Nyatakan hubungan antara ℓ dan T berdasarkan graf di 6(c).

[1 mark][1 markah]

(e) State one precaution that should be taken to obtain the accurate readings of ℓNyatakan satu langkah berjaga-jaga yang perlu diambil untuk mendapatkan bacaan ℓ yang jitu.

[1 mark][1 markah]



2 An experiment is carried out to investigate the relationship between the length, ℓ, of a simple pendulum and the period of oscillation, T. The apparatus is set up as shown in Diagram 8.1.Satu eksperimen dijalankan untuk mengkaji hubungan antara panjan g, ℓ, bagi satu bandul ringkas dengan tempoh ayunan, T. Susunan radas bagi eksperimen tersebut ditunjukkan dalam Rajah 8.1.


The experiment is started with a pendulum length of 30.0 cm. The pendulum bob is displaced and then released so that it oscillates. The time taken, t, for 10 complete oscillations is recorded. The experiment is repeated with pendulum lengths of 40.0 cm, 50.0 cm, 60.0 cm and 70.0 cm. The corresponding stopwatch readings for 10 complete oscillations are shown in Diagram 8.2, 8.3, 8.4, 8.5 and 8.6.Eksperimen dimulakan dengan panjang bandul 30.0 cm. Ladung bandul tersebut disesarkan dan dilepaskan supaya ia berayun. Masa, t, yang diambil untuk 10 ayunan lengkap dicatat. Eksperimen diulangi dengan panjang bandul 40.0 cm, 50.0 cm, 60.0 cm and 70.0 cm. Bacaan jam randik yang sepadan untuk 10 ayunan lengkap ditunjukkan dalam Rajah 8.2, 8.3, 8.4, 8.5 and



8.6.

ℓ = 30.0 cmt = sT = sT2 = s2


ℓ = 40.0 cmt = sT = sT2 = s2




ℓ = 50.0 cmt = sT = sT2 = s2


ℓ = 60.0 cmt = sT = sT2 = s2




ℓ = 70.0 cmt = sT = sT2 = s2


(a) For the experiment described, identify:Bagi eksperimen yang diterangkan, kenal pasti:


[1 mark][1 markah]


[1 mark][1 markah]

(iii)


[1 mark][1 markah]

(b) Write your answers in the spaces provided in the corresponding diagrams for the following questions.Tulis jawapan anda dalam ruang yang disediakan dalam rajah-rajah yang sepadan bagi soalan yang berikut.

(i) Record the readings, t, of the stopwatch. Your answers must be correct to one decimal place.Catatkan bacaan, t, bagi jam randik. Jawapan anda hendaklah betul kepada satu tempat perpuluhan.



[2 marks][2 markah]

(ii)For each value of t in 8(b)(i), calculate the period of oscillation, T, of the pendulum using the following equation:Bagi setiap nilai t di 8(b)(i), hitung tempoh ayunan, T, bagi bandul tersebut menggunakan persamaan berikut:

T =

Record the value of T. Your answer must be correct to two decimal places.Catatkan nilai T. Jawapan anda hendaklah betul kepada dua tempat perpuluhan.

[1 mark][1 markah]

(iii)

Calculate T2 for each value of T in 8(b)(ii). Record the value of T2. Your answers must be correct to two decimal places.Hitung T2 untuk setiap nilai T di 8(b)(ii). Catatkan nilai T2. Jawapan anda hendaklah betul kepada dua tempat perpuluhan.

[2 marks][2 markah]

(c) Tabulate your results for all values of ℓ, T and T2 in the space below.Jadualkan keputusan anda bagi semua nilai ℓ, T dan T2 dalam ruang di bawah.



[2 marks][2 markah]

(d) Plot a graph of T2 against ℓ on a piece of graph paper.Lukis graf T2 melawan ℓ pada sehelai kertas graf.

[5 marks][5 markah]

(e) Based on the graph in 8(d), state the relationship between T2 and ℓ.Berdasarkan graf di 8(d), nyatakan hubungan antara T2 dengan ℓ.

[1 mark][1 markah]



3 A student carries out an experiment to investigate the relationship between the depth of immersion, d, of a block and the buoyant force, FB.Diagram 10.1 shows the reading of the spring balance, W0, before the block is immersed into a beaker of water.Seorang murid menjalankan satu eksperimen untuk mengkaji hubungan antara kedalaman rendaman, d, suatu blok dengan daya apungan, FB.Rajah 10.1 menunjukkan bacaan bagi neraca spring, W0, sebelum blok itu direndam ke dalam sebuah bikar berisi air.

W0 = 9.5 N

Before block is immersedinto the water

Sebelum blok direndamke dalam air


W = __________ NFB = W0 − W = __________ N

d = 5.0 cmDiagram 10.2

Rajah 10.2

Diagram 10.2 shows the reading of the spring balance, W, when the block is immersed to a depth, d = 5.0 cm.Rajah 10.2 menunjukkan bacaan neraca spring, W, apabila blok itu direndamkan sehingga kedalaman, d = 5.0 cm.The procedure is repeated with the immersion depths of d = 10.0 cm, 15.0 cm, 20.0 cm and 25.0 cm.The corresponding readings of the spring balance are shown in Diagram 10.3, 10.4, 10.5 and 10.6.Prosedur itu diulangi dengan kedalaman rendaman, d = 10.0 cm, 15.0 cm, 20.0 cm and 25.0 cm.Bacaan neraca spring yang sepadan ditunjukkan pada Rajah 10.3, 10.4, 10.5, dan 10.6.



W = __________ NFB = W0 − W = __________ N


Rajah 10.3

W = __________ NFB = W0 − W = __________ N


Rajah 10.4

W = __________ NFB = W0 − W = __________ N


Rajah 10.5

W = __________ NFB = W0 − W = __________ N


Rajah 10.6

(a) Identify:Kenal pasti:(i) The manipulated variable.

Pemboleh ubah dimanipulasikan.



[1 mark]

[1 markah](ii) The responding variable.

Pemboleh ubah bergerak balas.

[1 mark][1 markah]

(iii)

The constant variable.Pemboleh ubah dimalarkan.

[1 mark]

[1 markah]

(b) For the following questions, write your answers in the spaces provided in the corresponding diagrams. Your answers must be in one decimal place.Untuk soalan berikut, tulis jawapan anda dalam ruang yang disediakan dalam rajah-rajah yang sepadan. Jawapan anda hendaklah dalam satu tempat perpuluhan.(i) Based on Diagrams 10.1, 10.2, 10.3, 10.4, 10.5 and 10.6, record the readings, W, of the

spring balance.Berdasarkan Rajah 10.1, 10.2, 10.3, 10.4, 10.5, dan 10.6, catatkan bacaan, W, bagi neraca spring.

[2 marks][2 markah]

(ii) Calculate FB for each value of W in (b)(ii) by using the formula FB = W0 − W.Record the value of FB.Hitungkan FB bagi setiap nilai W di (b)(ii) dengan menggunakan formula FB = W0 − W.Catatkan nilai FB.

[2 marks][2 markah]

(c)Tabulate your results for all the values of d, W and FB in the space below.Jadualkan keputusan anda bagi semua nilai d, W, dan FB dalam ruang di bawah.



[2 marks][2 markah]

(d)On a piece of graph paper, plot a graph of FB against d.Pada sehelai kertas graf, lukis graf FB melawan d.

[5 marks][5 markah]

(e) Based on the graph in (d), state the relationship between FB and d.Berdasarkan graf di (d), nyatakan hubungan antara FB dengan d.

[1 mark][1 markah]



4 An experiment is carried out to investigate the relationship between the length of a wire, ℓ and its resistance, R. The arrangement of the apparatus is shown in Diagram 2.1. A rheostat, a switch, an ammeter, a constantan wire and dry cells are connected in series. A voltmeter is used to measure the potential difference, V, across the constantan wire between X and Y.Satu eksperimen dijalankan untuk mengkaji hubungan antara panjang dawai, ℓ, dan rintangannya, R. Susunan radas ditunjukkan dalam Rajah 2.1. Satu reostat, suis, ammeter, dawai konstantan dan sel kering disambung secara sesiri. Sebuah voltmeter digunakan untuk mengukuh beza keupayaan, V, merentasi dawai konstantan antara X dan Y.


A constantan wire of length, ℓ = 30.0 cm is connected between X and Y. When the switch is on, the rheostat is adjusted untuk the ammeter reading is 0.2 A. The voltmeter reading, V, is as shown in Diagram 2.2. The procedure is repeated with constantan wires of length, ℓ = 40.0 cm, 50.0 cm, 60.0 cm, 70.0 cm and 80.0 cm. The corresponding volmeter readings across X and Y are shown in Diagram 2.3, 2.4,



2.5, 2.6 and 2.7.Dawai konstantan yang mempunyai panjang, ℓ = 30.0 cm disambung antara X dan Y. Apabila suis dihidupkan, reostat dilaraskann sehingga bacaan ammeter adalah 0.2 A. Bacaan voltmeter, V, adalah seperti yang ditunjukkan dalam Rajah 2.2. Prosedur diulangi dengan dawai konstantan yang mempunyai panjang, ℓ = 40.0 cm, 50.0 cm, 60.0 cm, 70.0 cm dan 80.0 cm. Bacaan voltmeter yang sepadan, yang merentasi X dan Y, ditunjukkan dalam Rajah 2.3, 2.4, 2.5, 2.6 dan 2.7.







(a) For the experiment described, identify:

Bagi eksperimen yang diterangkan, kenal pasti:




[1 mark][1 markah]


[1 mark][1 markah]

(iii)


[1 mark][1 markah]

(b) Based on Diagram 2.2, 2.3, 2.4, 2.5, 2.6 and 2.7:Berdasarkan Rajah 2.2, 2.3, 2.4, 2.5, 2.6 dan 2.7:

(i) Record the voltmeter readings, V.Catatkan bacaan voltmeter, V.

[2 marks][2 markah]

(ii) Calculate the values of R for each length of wire using the formula R = .Hitung nilai-nilai R bagi setiap panjang dawai menggunakan formula R = .

[2 marks][2 markah]

(iii)

Tabulate your results for V and R for all values of ℓ.Jadualkan keputusan anda bagi V dan R untuk semua nilai ℓ.

[3 marks][3 markah]

(c) Plot a graph of R against ℓ on a piece of graph paper.Lukis graf R melawan ℓ pada sehelai kertas graf.



[5 marks][5 markah]

(d) Based on your graph in 2(c), state the relationship between R and ℓ.Berdasarkan graf anda di 2(c), nyatakan hubungan antara R dan ℓ.

[1 mark][1 markah]


Date post:	04-Jan-2016
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7 (Bahagian D- 1)

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