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MODUL KECEMERLANGAN AKADEMIK 1

MEI 2017

NEGERI PAHANG

PERATURAN PEMARKAHAN FIZIK TINGKATAN 4

KERTAS 3

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Q1(a) (i) State the manipulated variable correctly - Number of pieces of coin/ N//

- Bilangan kepingan duit syilling, N 1 1

(ii) State the responding variable correctly - Thickness of stack up of coins/ D//

- Ketebalan susunan duit syiling/ D 1 1

(iii) State a constant variable correctly - Thickness of a pieces of coin

- Ketebalan sekeping duit syiling (Reject: thickness of coin)

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1(b)(i) 1(b)(ii)

N1, d = 1.68 mm N2 d = 3.34 mm N3, d = 5.00 mm N4, d = 6.66 mm N5, d = 8.32 mm Score

Number of ü score 5 2 3- 4 1 0 - 2 0

- Column for N, d and D tabulated correctly ü - Unit of d and D correct ü - Values of D correctü - Values of d ü - D consistent ü Score

Number of ü score 5 4

3 - 4 3 2 2 1 1 0 0

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N d (mm) D (mm) 1 1.68 1.66 2 3.34 3.32 3 5.00 4.98 4 6.66 6.64 5 8.32 8.30

1 (c ) Plot a complete graph of D against N

Tick (ü) based on the following aspects: A � Show D on the vertical-axis and N on the horizontal-axis. ü B � State the units of the variables correctly ü C � Both axes are marked with uniform scale ü D � All 5 points are plotted correctly üü (note: if only three points plotted correctly, award ü)

5 5

E � Best fit line is drawn ü F � Show the minimum size of graph at least 5 X 4 (2

X 2) square. ü (counted from the origin until the furthest point)

Score

Number of / bil ü Marks / markah 7 ü 5

5 – 6 ü 4 3 – 4 ü 3

2 ü 2 1 ü 1

State the correct relationship between N and D

D is directly proportional to N D berkadar terus/langsung dengan N

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(a)

(b)(i) (b)(ii) (c)(i) (c)(ii) (c)(iii)

a increase// increase a meningkat// meningkat draw extrapolation line ü lukis garis extrapolasi ü Range a = 7.0 - 7.7ms-2 ü Julat a = 7.0 – 7.7 ms-2 ü a increases linearly to F a meningkat secara linear kepada F Draw a sufficiently large triangle (> 3 X 4 larger square) or more ü Melukis segitiga petak besar (> 3 X 4 larger square) atau lebih ü Correct suststitution Gantian yang betul a = (35 – 10) ms-2 ü F (9 – 1) N F = ma F = m so 1 = a a m F 1 = 3.13 ms-2N-1 ü (with correct unit) m 1 = 3.13 ms-2N-1 (1N = 1kgms-2) m m = 0.32 kg ü (with correct unit) (NOTE: m = F ) a F =kma F = m ka 1 X F = m ü or k a

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(d)

1 = F = m ü k a k = 3.13 ms-2N-1 ü (with correct unit) Able to state one correct precaution Eyes must be perpendicular to the scale of reading to avoid parallax error Mata mestilah berserenjang dengan skala bacaan untuk mengelakkan ralat paralak

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3 (a)

(b)

State a suitable inference The extension of spring is depend on the mass//Force Pemanjangan spring bergantung kepada jisim//Daya State a relevant hypothesis Menyatakan hipotesis yang sesuai. When the mass//Force increase the extension of spring also increase Apabila jisim//daya bertambah, maka pemanjangan spring juga bertambah

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c (i) State the aim of experiment Menyatakan tujuan eksperimen To investigate the relationship between mass//Force and the extension of spring. Untuk menyiasat hubungan antara jisim//Daya dan pemanjangan spring

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responding variable Menyatakan pemboleh ubah dimanipulasi dan pembolehubah bergerak balas yang betul. Manipulated variable: mass,m //Force, F Pembolehubah dimanipulasi: jisim//Daya Responding variable: The extension of spring, x Pembolehubah bergerak balas: pemanjangan spring, x

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State ONE correct variable that kept constant Menyatakan satu pemboleh ubah dimalarkan yang betul. Fixed variable: stiffness of spring// Thickness of spring Pembolehubah tetap: kekerasan spring// ketebalan spring

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(iii) (iv)

Complete list of apparatus and materials Senarai lengkap radas dan bahan Slotted weight, needle, metre rule, spring, retord stand Pemberat berslot, jarum, pembaris meter, spring, kaki retort Arrangement of apparatus : Susunan radas

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L0 L1

Slotted weight

spring

needle

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c

(v) (vi)

State the method of controlling the manipulated variable Menyatakan bagaimana mengawal pemboleh ubah dimanipulasi. State the method of measuring the responding variable

1. The initial length, L0 of a spring is determined and record

without slotted weight. Panjang awal , L0 bagi spring diukur dan direkod tanpa pemberat berslot. A slotted weight with mass 40.0g is attached to the spring, and the final length of the spring is recorded L1. Pemberat berslot dengan jisim 40.0g diletakkan pada spring dan bacaan panjang akhir direkodkan, L1.

State the method of measuring the responding variable 2. Calculated the extension of spring by using a formula

x = L1 - L0 and record the data. Kira pemanjangan spring, dengan menggunakan formula

x = L1 - L0 dan rekod data. Repeat the experiment at least 4 times 3. Repeat previous steps by increasing the mass of slotted

weight, m is 50.0g, 60.0g, 70.0g and 80.0g. Ulang langkah sebelumnya dengan menambah jisim bagi pemberat berslot, m kepada 50.0g, 60.0g, 70.0 g dan 80.0g.

Tabulation of data://Penjadualan data

Mass,m

(g) Force, F (N)

Initial length.

L0 (cm)

Final length,

L1 (cm)

Extension of

spring, x (cm)

40.0 50.0 60.0 70.0 80.0

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4 (a)

(b)

State a suitable inference Stroller in Diagram 3.2 moves faster than stroller in Diagram 3.1// The acceleration is depend on mass// No. of babies/mass affect acceleration Stroler dalam Rajah 3.2 bergerak lebih cepat berbanding stroler dalam Rajah 3.1// Pecutan bergantung kepada jisim// Bilangan bayi/jisim mempengaruhi pecutan States a relevant hypothesis The acceleration increases as the mass decreases// The bigger the masa, the lower the acceleration. Pecutan bertambah apabila jisim berkurang// Semakin besar jisim, semakin kurang pecutan

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c c

(i) (ii)

. State the aim of experiment To investigate the relationship between the mass and the acceleration of trolley. Untuk menyiasat hubungan diantara jisim dengan pecutan suatu troli. State the correct manipulated variable and the responding variable Menyatakan pemboleh ubah dimanipulasi dan pembolehubah bergerak balas yang betul.

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(vii)

Analyse the data. // Menganalisa data

x (cm)

mass, m (g)//Force, F (N)

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Manipulated variable : mass Pembolehubah dimanipulasi : jisim Responding variable : acceleration Pembolehubah bergerak balas: pecutan

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(iii) (iv)

State ONE correct variable that kept constant Force. Daya Complete list of apparatus and materials Senarai alat dan bahan yang lengkap Trolley, power supply, ticker timer, ticker tape, connecting wire, friction compensated inclined plane, string, weight, blocks of woods, metre rule, pulley Troli, bekalan kuasa, jangkamasa detik, pita detik, wayar penyambung, landasan condong terpampas geseran, tali, pemberat, blok kayu, pembaris meter, takal State functional arrangement of the apparatus Senarai lengkap radas dan bahan

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c

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State the method of controlling the manipulated variable Menyatakan bagaimana mengawal pemboleh ubah dimanipulasi. 1. The mass of trolley ,m = 10g is determined by using the

weighing machine Jisim troli,m = 10.0g diukur menggunakan mesin neraca.

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c

(vi)

State the method of measuring the responding variable

2. The ticker timer is switch on and the weight is released

Jangkamasa detik dihidupkan dan pemberat dilepaskan

Based on the ticker tape obtained, the acceleration,a of the trolley, is calculated using the formula, a = v – u t Berdasarkan pita detik yang diperoleh, pecutan troli dihitung dengan menggunakan formula, a = v – u t

Repeat the experiment at least 4 times 3. Repeat previous steps by increasing the mass of trolley, m

is 15.0g, 20.0g, 25.0g and 30.0g. Ulang langkah sebelumnya dengan menambah jisim, m troli

kepada 15.0g, 20.0g, 25.0 dan 25.0g.

Tabulation of data://Penjadualan data

Mass,m (g)

jisim Acceleration, a (ms-2)

pecutan 10.0 15.0 20.0 25.0 30.0

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c

(vii)

Analyse the data. // Menganalisa data

a/ms-2

m/g

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