Section B

Section A

[ 28 marks]

Answer all questionJawab semua soalan

1. A student carries out an experiment to study the relationship between the speed of trolley, v and the height of the trolley on the inclined plane from the surface, h.

The arrangement of apparatus is shown in Diagram 1.1.

The frequency of the ticker timer is 50 Hz.

The height of the trolley on the inclined plane from the surface, h = the height of the block.

Seorang pelajar menjalankan satu eksperimen untuk mengkaji hubungan antara halaju troli, v dan ketinggian troli di atas landasan daripada permukaan lantai, h.

Susunan radas eksperimen seperti yang ditunjukkan pada Rajah1.1.

Frekuensi jangka masa ialah 50 Hz.

Ketinggian troli di atas landasan daripada permukaan lantai, h = ketinggian tinggi bongkah. Ticker tape

Ticker timer Trolley

h

Power supply

Diagram 1.1

At the beginning of the experiment, the height of the block is started with h = 20.0 cm. 10 ticks is chosen from the centre of the ticker tape to calculate the speed as shown in Diagram 1.2. The experiment is repeated by varying the values of h to be 30.0 cm, 40.0 cm, 50.0 cm and 60.0 cm. Every section of 10 ticks at the centre of ticker tape can be obtained as shown in Diagram 1.3, 1.4, 1.5 and 1.6.

Pada awal eksperimen tinggi bongkah h dimulai dengan 20.0 cm. 10 detik dipilih daripada bahagian tengah pita detik untuk menghitung halaju seperti yang ditunjukkan di Rajah 1.2. Eksperimen diulangi dengan menggunakan ketinggian bongkah 30.0 cm, 40.0 cm, 50.0 cm dan 60.0 cm. Keratan 10 detik pada bahagian tengah pita detik yang diperolehi ditunjukkan seperti pada

Rajah 1.3, 1.4, 1.5 dan 1.6.

Diagram 1.2 Diagram 1.3 Diagram 1.4 Diagram 1.5 Diagram 1.6

h = 20.0 cm h = 30.0 cm h = 40.0 cm h = 50.0 cm h = 60.0 cm

(a)For the experiment described on page 3, identify,

Bagi eksperimen yang diterangkan di halaman 3, kenal pasti ; (i) The manipulated variable,

pembolehubah yang dimanipulasikan,

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

[ 1 mark ](ii) The responding variable

pembolehubah bergerak balas,

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

[ 1 mark ]

(iii) A fixed variable,

pembolehubah yang dimalarkan,

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

[ 1 mark ]

(b) Measure the length of each ticker tape from Diagram 1.2, 1.3, 1.4, 1.5 and 1.6

when a different height of block is being used. In each measurement, calculate the

velocity using the formula below :

Length of ticker tape, s

Velocity, v = -------------------------------

Time for 10 ticks

Tabulate your results for h, s and v in the space below.

Ukur panjang pita pada Rajah 1.3, 1.4, 1.5 dan 1.6 apabila ketinggian

berlainan digunakan. Dalam setiap pengukuran, hitungkan halaju dengan

persamaan berikut:

Panjang pita, s

Halaju, v = ------------------------

Masa 10 detik

Jadualkan keputusan anda bagi h, s dan v pada ruang yang disediakan di bawah.

[ 6 marks ]

(c ) On the graph paper on page 4, draw a graph of v against h.

Pada kertas graf di halaman 4, lukiskan graf v melawan h.

[ 5 mark ] (d) Based on the graph on page 5, state the relationship between v and h.

Berdasarkan graf anda di halaman 5, nyatakan hubungan antara v dan h.

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

[ 1 mark ]

(e) State one precaution in this experiment.

Nyatakan satu langkah berjaga-jaga dalam eksperimen ini

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

[ 1 mark ]

Section A

[ 28 marks]

Answer all question

Jawab semua soalan

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

length , l of a piece of wire X placed at the cut A of cardboard strip and the angle ,

.

The apparatus set-up for this experiment is shown in Diagram 1.1 and 1.2.

Seorang murid menjalankan satu eksperimen untuk mengkaji hubungan antara panjang, l

seutas wayar X yang diletakkan pada sekeping potongan kadbod di A dengan sudut, .

Susunan alat radas bagi eksperimen ini ditunjukkan pada rajah 1.1 dan 1.2.

The student starts the experiment with the length, l of a piece of wire X that is

50.0 cm. The corresponding reading of protractor is shown in Diagram 1.3 on page 3.

The experiment is repeated with length, l of wire 40.0 cm, 30.0 cm, 20.0 cm and 10.0

cm. The corresponding readings of protractor are shown in Diagram 1.4, 1.5, 1.6 and

1.7 on pages 3, 4 and 5.

Murid itu memulakan eksperimen dengan panjang, l seurat wayar X 50.0 cm. Bacaan

jangkasudut yang sepadan yang sepadan ditunjukkan pada rajah 1.3 dihalaman 3.

Eksperimen diulangi dengan mengunakan panjang, l = 40.0 cm, 30.0 cm, 20.0 cm dan 10.0

cm. Bacaan jangkasudut yang sepadan dihalaman 3, 4 dan 5.

For the experiment describe on page 2, identify

Bagi eksperimen yang diterangkan di halaman 2, kenalpasti

(i) the manipulated variable

Pembolehubah dimanipulasi

[ 1 mark ]

(ii) the responding variable

Pembolehubah bergerak balas

[ 1 mark ]

(iii) the constant variable

Pembolehubah yang dimalarkan

[ 1 mark ]

(b) For this part of question, write your answers in the spaces provided in the

corresponding diagrams.

Untuk bahagian soalan ini, tulis jawapan anda diruang yang disediakan dalam rajahrajah

yang sepadan.

Based on Diagram 1.3, 1.4, 1.5, 1.6 and 1.7 on pages 3, 4 and 5.

Berdasarkan rajah 1.3, 1.4, 1.5, 1.6 dan 1.7 di halaman 3, 4 dan 5.

(i) Record the reading of protractor in the space provided on pages 3, 4 and 5.

Catat bacaan bagi jangka sudut diruangan yang telah disediakan pada mukasurat 3,

4 dan 5.

[2 marks]

(ii) Tabulate your results for all values of l and in the space given below.

Jadualkan keputusan anda bagi semua nilai l dan dalam ruang di bawah.

[ 4 marks ]

(c) On the graph paper on page 8, plot a graph of against l.

Pada kertas graf di halaman 8, lukis graf melawan l.

[ 5 marks ]

(d) Based on your graph in 1 (c), state the relationship between and l.

Berdasarkan graf di 1 (c), nyatakan hubungan diantara dan l.

[1 mark]

(e) State one precaution that should be taken to improve the result of this experiment.

Nyatakan satu langkah berjaga-jaga yang perlu diambil untuk memperbaiki keputusan

eksperimen ini.

[1 mark]

Section B

Bahagian B

[12 marks]

[12 markah]

Answer any one question from this section

Jawab mana-mana satu soalan daripada bahagian ini.

3. Diagram 3.1 shows two identical lorries which are at rest when the traffic light is red.

When the red light turns green, both lorries start to accelerate with the same forward

thrust. Digram 3.2 shows the positions of both lorries after two minutes.

Rajah 3.1 menunjukkan dua buah lori yang serupa dalam keadaan pegun apabila lampu isyarat adalah

merah. Apabila lampu isyarat bertukar kepada hijau, kedua-dua lori mula memecut dengan daya

tujahan yang sama. Rajah 3.2 menunjukkan kedudukan kedua-dua lori selepas dua minit.

Diagram 3.1 : When the traffic light is red

Rajah 3.1: Apabila lampu isyarat merah

Diagram 3.2 : After 2 minutes accelerating

Rajah 3.2: Selepas 2 minit memecut

Based on the information and observation,

Berdasarkan maklumat dan pemerhatian tersebut,

(a) State one suitable inference.

Nyatakan satu inferens yang sesuai.

[1mark]

[1 markah]

(b) State one appropriate hypothesis that could be investigated.

Nyatakan satu hipotesis yang sesuai dan boleh disiasat.

[1mark]

[1 markah]

(c) With the use of apparatus such as a trolley, ticker timer, rubber band and other

apparatus, describe one experiment framework to investigate the hypothesis stated

in 3(b).

Dengan menggunakan radas seperti troli, jangkamasa detik, gelang getah dan lain-lain radas,

terangkan satu rangka kerja eksperimen untuk menyiasat hipotesis yang dinyatakan di 3(b).

In your description, state clearly the following:

Dalam penerangan anda, jelaskan perkara berikut:

(i) The aim of the experiment.

Tujuan eksperimen.

(ii) The variables in the experiment.

Pembolehubah dalam eksperimen.

(iii) The list of apparatus and materials.

Senarai radas dan bahan.

(iv) The arrangement of the apparatus.

Susunan radas.

(v) The procedure of the experiment which should include one method of

controlling the manipulated variable and one method of measuring the

responding variable.

Prosedur eksperimen yang mesti termasuk satu kaedah mengawal pembolehubah

dimanipulasikan dan satu kaedah mengukur pembolehubah bergerak balas.

(vi) The way you tabulate the data.

Cara anda menjadualkan data.

(v) The way you analyse the data.

Cara anda menganalisis data.

[10 marks]

[10 markah]

3.Diagram 3.1 shows a boy riding his bicycle along a dirt track. When the boy goes over a low hillock, he comes down slowly.

Diagram 3.2 shows the same boy coming down a high hillock along the track. The track is much steeper causing him to come down very fast.

Rajah 3.1 menunjukkan seorang budak lelaki sedang menunggang basikalnya di sepanjang satu trek tanah. Apabila budak itu melalui satu timbunan tanah yang rendah, dia menuruni timbunan itu dengan perlahan.

Rajah 3.2 menunjukkan budak lelaki yang sama menuruni satu timbunan tanah yang tinggi pada trek tersebut. Trek itu adalah lebih curam dan menyebabkannya bergerak turun dengan laju.

Based on the situation above:

Berdasarkan situasi di atas:

(a) make one suitable inference

[1 mark]

bentukkan suatu inferens yang sesuai

(b) state an appropriate hypothesis that could be investigated

[1 mark]

nyatakan suatu hipotesis yang sesuai untuk penyiasatan

(c) With the use of apparatus such as trolley, ticker timer, ticker tape and other suitable apparatus, design an experiment to test the hypothesis.

In your description, state clearly the following;

Dengan menggunakan radas seperti troli, jangka masa detik, pita detik dan peralatan lain yang sesuai, rangkakan suatu eksperimen yang sesuai untuk menguji hipotesis.

Dalam penjelasan anda, nyatakan dengan jelas;

(i) aim of the experiment

tujuan eksperimen

(ii) variables in the experiment

pembolehubah eksperimen

(iii) list of apparatus and materials

senarai peralatan dan bahan

(iv) arrangement of the apparatus

susunan radas

(v) the procedure of the experiment, including the method of controlling the manipulated variable and the method of measuring the responding variable

prosedur eksperimen, termasuk cara mengawal pembolehubah dimanipulasikan dan cara mengukur pembolehubah bergerakbalas

(vi) the way you would tabulate the data, and

cara menjadualkan data, dan

(vii) the way you would analyse the data

cara menganalisis data

[10 marks]QuestionMarksMarking Scheme

1(a)(i)1State the manipulated variable correctly ;

Height of inclined plane from the surface, h

(ii)1State the responding variable correctly ;

Velocity of the trolley, v

(iii)1

State one fixed variable;

Mass of troley // No. of trolley // frequency of power supply, f

(b)1

1

11

1

1

Tabulate h, s and v correctly in the table.

A Shows a table which have h, s and v.

B State the correct unit of h/cm, s/cm and v/cms-1.

C All values of h are correct .

D Values of s are correct.

E Values of v are correct.

F All the values are consistent in 1 d.p or 2 d.p.h/cm

s/cm

v/cms-120.0

5.8

29.0

30.0

8.0

40.0

40.0

10.2

51.0

50.0

12.5

62.5

60.0

14.8

74.0

(c)5

Draw the graph of v against h.A - Label y-axis and x-axis correctly

B - States the unit at both axis correctly

C - Both axes with the even and uniform scale

D - 5 points correctly plotted

E - a smooth best straight line

F - minimum size of the graph is 5 x 4

(Squares of 2 x 2 cm) Number of

Score

6

5

5

4

3-4

3

2

2

1

1

d1State the correct relationship based on the

candidates graph

vincrease linearly to h

e1State ONE correct precaution so as to produce an accurate result of the experiment

The position of the eye perpendicular to the scale when takes the reading to avoid errors due to parallax/systematic error.

Total16 Marks

Question 3MarksAnswerNote

(a)1Making the right inference

The height of the track(hillock) affects the velocity

(b)1Building an appropriate hypothesis

The greater the height, the larger the velovity.

(c)(i)1Stating the aim of the experiment

To study the relationship between the height and velocity

(ii)1

1Stating the correct variables

Manipulated variable : height (of track), h // number of similar wooden blocks

Responding variable : velocity, v

Fixed variable : length (of track), l //

Mass (of trolley) , m

(iii)1List of appropriate apparatus and material

Metre-rule , a.c. power supply

(iv)1

Describing set up of the apparatus

v)1

1

1

Stating the procedure of the experiment

1. Set up apparatus as shown above.

2. Set the track so that the height of track, h = 15.0 cm.

3. Switch on the power supply and allow the trolley to come down the track. Calculate the velocity, v (of the trolley) from the ticker-tape.

4. Repeat steps 2 and 3 for h = 20.0 cm, 25.0 cm, 30.0 cm and 35.0 cm.

5. Tabulate data.

6. Plot graph of v against h.

vi)1Tabulating data

Show table with h and v as headings* Unit is not required

viii)1Analysing data

v

h **This mark may be given at the last line for procedure.

Total12

s1

s2

s3

s4

s5

Diagram 3.1

[Rajah 3.1]

Diagram 3.2

[Rajah 3.2]

11

Trolley

Ticker timer

Ticker tape

track

a.c. power

supply

5

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