The past cannot be changed. The future is yet in your ... · 25/11/2018 · Apakah yang terjadi kepada magnitud rintangan dalam, ... Lengkapkan persamaan tindak balas dengan menulis

The past cannot be changed. The future is yet in your power.

Thinking across the spectrum Be amazing and awesome

Proud to be yourself

AWESOME PHYSICS IS AROUND YOU 2

FIZIK (SPOT SPM) F4

• Alat Pengukuran : VERNIER // TOLOK SKRU MIKROMETER // ELEKTRIK • Inersia • Daya // Impuls // Momentum • Daya Gravity • Kerja • Tenaga • Kuasa & Kecekapan • Kekenyalan • Tekanan (Bendalir, Gas, Atmosfera, Pascal) • Tenaga Haba // Muatan Haba Tentu // Muatan Haba Pendam // Hukum Gas • Pantulan Cahaya // Pembiasan Cahaya // Teleskop // Binocular// Kanta

F5 • Memahami Gelombang, Pantulan, Pembelauan, Gel. Elektromagnet • Litar Sesiri, Selari // Dge Dan Rintangan Dalam // Tenaga Dan Kuasa Elektrik • Transformer • Transistor, Diod, Rektifikasi, Get Logik (Semua) • Memahami Nucleus // E=mc² // Pereputan Radioaktif


ANALISIS TRIAL NEGERI 2018 PAPER 2

NO.

SOAL

AN

MRS

M

JOHO

R

KEDA

H

KELA

NTAN

T’G

ANU

NG. 9

1 Transformer EM Waves Velocity graph Sensitivity instrument

Velocity graph

Sensitivity, accuracy instrument

2 Momentum (rocket)

Pascal’s principle

Longitudinal wave

Refraction water wave



3 Specific heat capacity (sea breeze)

Series & parallel circuit

Logic gate Nuclear reaction

Pressure law

Hooke’s Law

4 Electronic (thermionic emission)

Diode (FB, RB & rectification)

TIR Transistor (LDR)

Series & parallel circuit

Diode (rectification)

5

Bernoulli’s principle

Hooke’s Law Electric field Momentum TIR + refraction of light

Pressure Law

6 Radioactive decay

Induction (Lenz’s Law)

Interference (light)

Electromagnet EM Induction

Ohm’s Law

7 Lens + microscope

TIR Hooke’s Law Telescope Logic gate Half-life

8 Interference Heat & temperature

Specific heat capacity (sea breeze)

Specific heat capacity

Half-life Atmospherics pressure

9 Force & motion

Atmospherics pressure

Pascal’s principle

Pressure in liquid (depth) + Pascal’s principle


Atmospherics pressure

10 Magnetic force + induction

Longitudinal wave

Magnetic force + induction

Longitudinal wave

Diffraction of water wave

EM Waves

11 TIR Momentum (rocket)

Lens + binocular + telescope

Inclined plane Free fall Lens + magnifying glass

12 EMF Radioisotopes Radioisotopes Series & parallel circuit + transmission of energy

Transformer + transmission of electricity

Magnetic field + application electromagnet



NO.

SOAL

AN

PAHA

NG

(SET

A)

PAHA

NG

(SET

B)

PERL

IS

KHIR

JO

HARI

(P

ERAK

)

SARA

WAK

SBP

1 Plane mirror Heat (T against t)

Lens Thermometer Transistor (LDR)

Velocity-time graph

2 Pulley system Vernier caliper

Impulsive force

Barometer mercury

Balanced force Refraction of water wave

3 Diffraction of water wave

EM Induction

Transformer EM Waves Half-life Half-life, alpha, beta & gamma

4 Specific heat capacity

Lens S/C diode Tension (triangle of forces)

Balanced force Transistor (LDR)

5

Fb + density Spring Pressure in liquid (depth)

Boyle’s Law Lens Pressure law

6 Series & parallel circuit


Diode + rectification

Radioisotopes Interference (light)

EMF

7 Magnetic force Series & parallel circuit

EM Induction Hooke’s Law Power + electrical energy

TIR

8 Half-life + Radioisotopes

CRO + rectification

Power + electrical energy

Lens EM induction (Lenz’s Law)

Heat + latent heat

9 Mirror + periscope

Momentum Hooke’s Law Specific heat capacity

Mirror Spring

10 Semiconductor diode + transistor

Half-life + nuclear reactor

Radioactivity + nuclear energy

Sound wave Diffraction of water wave

EM induction

11 Hooke’s Law TIR TIR Bernoulli’s principle

Specific heat capacity


12 Magnetic force + induction + electromagnet

EM wave + sound wave (detect depth)

Longitudinal wave

Ohm’s Law + factor effect resistance

Radioisotopes (kerajang emas)

GM tube, radioisotope



NO. S

OAL

AN

MRS

M

JOHO

R

KEDA

H

KELA

NTAN

T’G

ANU

NG. 9

1 Buoyant force

Ohm’s law Magnetic force (P = Patm +h) Real + apparent depth

Lens (𝟏𝒗+ 𝟏

𝒖)

2 Ic and Ib Snell’s law v against t Interference of sound wave

R and 𝟏𝒅𝟐

Force and current

3 Charles’ law

Charles’ law Pressure law Real + apparent depth

Hooke’s law Charles’ law

4 Resistance + diameter of wire

EM (I + no. of pins attracted)

Resistance + current

EM induction (no. of turns)

EM induction (speed of rotation)

Interference of light wave

NO.

SOAL

AN

PAHA

NG

(SET

A)

PAHA

NG

(SET

B)

PERL

IS

KHIR

JO

HARI

(P

ERAK

)

SARA

WAK

SBP

1 Trolley (v and h)

Heat (m + ∆𝜽)

Current + length of wire

Length and Resistance

Snell’s law Lens (u, v)

2 Interference of light wave

Ohm’s law Hooke’s law

Hooke’s law F = ma (F and a)

Vs and Np

3 Charles’ law Pressure and cross-sectional area

F=ma (m and a)

Real + apparent depth

Pressure law Charles’ law

4 EM (I + no. of pins attracted)

Interference of water wave

Refraction of water wave (l and depth)

Magnetic force

Frequency and l

Depth & l


ANALISIS PHYSICS PAPER 3

(SPM)

TAHUN SECTION A SECTION B NO. 1 NO. 2 NO. 3 NO. 4

2008 SIMPLE PENDULUM

F=ma (acceleration +

height)

PRESSURE

ELECTROMAGNETISM

(force)

2009 VOLUME (buoyant force)

INTERFERENCE OF WATER WAVE HOOKE’S LAW

ELECTROMAGNETIC INDUCTION

(current + no. of pin attracted)

2010 MEASUREMENT (Vernier callipers)

INTERFERENCE OF LIGHT WAVE

F=ma (acceleration +

mass)


(no. of turns + no. of pin attracted)

2011 BUOYANT FORCE (weight) PRESSURE LAW LENS

(u and v) INTERFERENCE OF

WATER WAVE

2012 INTERFERENCE OF LIGHT WAVE

BUOYANT FORCE BOYLE’S LAW ELECTRICITY

(R + diameter)

2013 MEASUREMENT (micrometre screw

gauge) SNELL’S LAW

PRESSURE IN LIQUID (depth)

REFRACTION (water wave)

2014 OHM’S LAW HOOKE’S LAW BUOYANT FORCE ELECTROMAGNETISM (force)

2015 REFRACTION

(real + apparent depth)

LENS (u and v) INERTIA ELECTRICITY

(R + diameter)

2016 HOOKE’S LAW TRANSFORMER BOYLE’S LAW


(no. of turns + no. of pin attracted)

2017 PRESSURE IN

LIQUID (density)

FACTOR EFFECTS RESISTANCE

(R & I) HOOKE’S LAW POWER & CURRENT

2018

Seriously soalannya mudah !!!! ;)

FPA

=


Answer all questions in this section. Jawab semua soalan dalam bahagian ini.

1. Diagram 1.1 shows a circuit which is used to determine the internal resistance, r of a dry cell.

Rajah 1.1 menunjukkan satu litar yang digunakan untuk menentukan rintangan dalam, r satu sel kering.

Diagram 1 / Rajah 1

(a) Name the physical quantity that measured by the voltmeter. Namakan kuantiti fizikal yang diukur oleh voltmeter. ………………………………………………………………………………………………...

[1 mark / 1 markah]

(b) Based on the Diagram 1, sketch the expected voltage against current graph. Berdasarkan Rajah 1, lakar jangkaan graf voltan melawan arus.

[2 marks / 2 markah]

(c) What happened to the internal resistance, r if the dry cell is used for a long time? Apakah yang terjadi kepada magnitud rintangan dalam, r sekiranya sel kering itu digunakan dalam jangka masa yang lama? ………………………………………………………………………………………………...

[1 mark / 1 markah]

TOTAL / JUMLAH 4 marks / 4 markah


2. Diagram 2.1 and Diagram 2.2 show two rectangular glass blocks with different optical density and

refractive index. Ray of light is directed toward the glass blocks with the same angle of incidence 30o. Rajah 2.1 dan Rajah 2.2 menunjukkan dua buah blok kaca segiempat tepat dengan ketumpatan optik dan indeks biasan yang berbeza. Satu sinar cahaya bergerak terus ke blok kaca dengan sudut tuju yang sama iaitu 30o.

Density = 2600 kgm-3

Ketumpatan = 2600 kgm-3

Density = 2670 kgm-3 Ketumpatan = 2670 kgm-3

Diagram 2.1 / Rajah 2.1 Diagram 2.2 / Rajah 2.2

(a) What is meant by refraction? Apakah yang dimaksudkan dengan pembiasan? ………………………………………………………………………………………………..

[1 mark / 1 markah]

(b) Calculate the refractive index of the glass block in Diagram 2.1. Hitungkan indeks biasan bagi blok kaca bagi Rajah 2.1.


(c) (i) On Diagram 2.2, draw the light path when the light passes through a glass block. Pada Rajah 2.2, lukiskan laluan cahaya apabila cahaya melalui blok kaca.

[1 mark / 1 markah]


(ii) Give a reason. Berikan sebab. ………………………………………………………………………………………….

[1 mark / 1 markah]



3. Diagram 3.1 shows two n-type semiconductor materials and n-type semiconductors are combined and then connected to a cell and a bulb. When the current is turned on, the bulb light up. Rajah 3.1 menunjukkan dua bahan semikonduktor jenis-p dan semikonduktor jenis-n dicantumkan dan kemudian disambungkan kepada bateri dan mentol. Apabila arus dihidupkan mentol didapati menyala.

Diagram 3.1 / Rajah 3.1

(a) Name the part label X?

Namakan Kawasan yang berlabel X? ………………………………………………………………………………………………..

[1 mark / 1 markah]

(b) The cell terminal in Diagram 3.1 is then reversed. Terminal sel dalam Rajah 3.1 kemudian disongsangkan.

(i) What happens to the distance of X. Apakah yang terjadi pada jarak X. …………………………………………………………………………………………

[1 mark / 1 markah]

(ii) State the condition of the bulb. Explain. Nyatakan keadaan mentol itu. Jelaskan. …………………………………………………………………………………………

…………………………………………………………………………………………



(c) Diagram 3.2 shows a boron (B) atom embedded among silicon (Si) atoms in a semiconductor. In Diagram 3.3 the embedded atom is phosphorus (P). Rajah 3.2 menunjukkan atom boron (B) tertanam di antara atom silikon (Si) dalam semikonduktor. Dalam Rajah 3.3, atom tertanam adalah fosforus (P).

Diagram 3.2 Diagram 3.3

(i) What is the purpose of doping a semiconductor? Apakah tujuan doping dalam semikonduktor? …………………………………………………………………………………………

[1 mark / 1 markah]

(ii) Name the type of semiconductor as shown on Diagram 3.2. Namakan jenis semikonduktor seperti yang ditunjukkan pada Rajah 3.2. …………………………………………………………………………………………

[1 mark / 1 markah]



4. Diagram 4.1 show the image form of convex lenses, from a ray box with triangle hole as an object. Rajah 4.1 menunjukkan imej yang dibentukkan oleh kanta cembung dari kotak sinar yang mempunyai lubang berbentuk segitiga yang bertindak sebagai objek.


(a) Underline the correct answer. Gariskan jawapan yang betul. Image form of the convex lens is (real, virtual) Imej yang dibentukkan oleh kanta cembung itu adalah (nyata, maya)

[1 mark / 1 markah]

(b) On Diagram 4.1, label the image distance. Pada Rajah 4.1, tandakan jarak imej.

[1 mark / 1 markah]

(c) Based on Diagram 4.1, draw a ray diagram to show the image form on the screen in the space below. Berdasarkan Rajah 4.1, lukis rajah sinar untuk menunjukkan pembentukkan imej pada skrin dalam ruang di bawah.



(d) Diagram 4.2 shows the student used a slide projector to display a large sharp image on the screen. Rajah 4.2 menunjukkan seorang pelajar telah menggunakan projektor slaid untuk menayangkan satu imej tajam yang besar di atas skrin.


Based on Diagram 4.2, calculate the focal length of lens, f. Berdasarkan Rajah 4.2, kirakan panjang fokus kanta, f.




5. Diagram 5.1 shows a nuclear reaction. Rajah 5.1 menunjukkan satu tindak balas nuklear.


(a) (i) What is the type the nuclear reaction as shown in Diagram 5.1?

Apakah jenis tindakbalas nuklear yang ditunjukkan dalam Rajah 5.1? …………………………………………………………………………………………

[1 mark / 1 markah]

(ii) Nuclear fusion produces a lot of energy. Explain how nuclear fusion reaction occurs. Pelakuran nukleus menghasilkan tenaga nuklear yang tinggi. Terangkan bagaimana pelakuran nukleus berlaku. …………………………………………………………………………………………

…………………………………………………………………………………………



(b) In a nuclear reactor, Uranium-235 is bombarded by a neutron produces Barium-141 and Kripton-92 and released three neutrons. Dalam suatu reaktor nuklear, Uranium-235 ditembak dengan satu neutron menghasilkan Barium-141 dan Kripton-92 dan membebaskan tiga neutron.

(i) Complete the equation of the reaction by writing the appropriate number in the boxes provided. Lengkapkan persamaan tindak balas dengan menulis nombor yang sesuai dalam kotak yang disediakan.

[1 mark / 1 markah]

(ii) The nuclear reaction of one nucleus of Uranium-235 experiences a mass defect of

2.988 x 10-28 kg. Calculate the energy released in the nuclear reaction. The velocity of light, c = 3 x 10 8 ms-1. Tindak balas nuklear bagi satu nukleus Uranium-235 mengalami kecacatan jisim sebanyak 2.988 x 10-28 kg. Hitungkan tenaga yang dibebaskan dalam tindak balas nuklear itu. Halaju cahaya adalah, c = 3 x 10 8 ms-1.



(c) Diagram 5.2 shows paths of three types of radioactive emission in a magnetic field. Rajah 5.2 menunjukkan lintasan bagi tiga jenis pancaran radioaktif dalam suatu medan magnet.

Key: Î = Direction of magnetic field inwards Kunci: Î = Arah medan magnet ke dalam


(i) Name the radioactive emission P. Namakan pancaran radioaktif P. …………………………………………………………………………………………

[1 mark / 1 markah]

(ii) Give a reason. Berikan sebab. …………………………………………………………………………………………

[1 mark / 1 markah]



6. Diagram 6.1 shows the graph of weight of body, W against extension, x for spring A and spring B. Rajah 6.1 menunjukkan graf berat jasad, W melawan pemanjangan, x untuk spring A dan spring B.


(a) State Hooke’s law.

Nyatakan Hukum Hooke. …………………………………………………………………………………………

[1 mark / 1 markah]

(b) By using Diagram 6.1, Dengan menggunakan Rajah 6.1,

(i) Compare the gradient of graph Bandingkan kecerunan graf …………………………………………………………………………………………

[1 mark / 1 markah]

(ii) Compare the spring constant Bandingkan pemalar spring …………………………………………………………………………………………

[1 mark / 1 markah]


(iii) Compare the elastic potential energy of the spring Bandingkan tenaga keupayaan elastic spring …………………………………………………………………………………………

[1 mark / 1 markah]

(c) Based on the answer in 6 (b), relate the spring constant with stiffness of the spring. Berdasarkan jawapan dalam 6 (b), hubungkaitkan pemalar spring dengan kekerasan spring. ………………………………………………………………………………………………..

[1 mark / 1 markah]

(d) Diagram 6.2 shows 5 springs that are similar to the original length of 5 cm. If placed 1 kg spring weights will be 7 cm long. Rajah 2 menunjukkan 5 spring yang serupa dengan panjang asal 5 cm. Jika diletakkan pemberat 1 kg spring itu akan memanjang 7 cm.

Diagram 6.2 / Rajah 6.2 Diagram 6.3 / Rajah 6.3 What is the total extension if the spring is arranged as shown in Diagram 6.3. Berapakah jumlah pemanjangan jika spring itu disusun seperti Rajah 6.3.




7. Diagram 7.1 shows a bar magnet is being pushed towards a solenoid. Rajah 7.1 menunjukkan magnet bar ditolak ke arah solenoid.


(a) What is meant by electromagnetic induction?

Apakah maksud aruhan elektromagnet? ………………………………………………………………………………………………..

[1 mark / 1 markah]

(b) In Diagram 7.1, when the magnet is pushed towards the solenoid; Dalam Rajah 7.1, apabila magnet ditolak masuk ke dalam solenoid;

(i) State the polarity at X. Nyatakan kekutuban pada X. …………………………………………………………………………………………

[1 mark / 1 markah]

(ii) Mark the direction of induced current on the solenoid. Tandakan arah arus aruhan pada solenoid. …………………………………………………………………………………………

[1 mark / 1 markah]

(iii) Show the direction of the pointer on the zero centred galvanometer. Tunjukkan arah anak panah pada galvanometer sifar tengah. …………………………………………………………………………………………

[1 mark / 1 markah]


(iv) Name the physics law involved in determining the pole in (b)(i) above. Namakan hukum fizik yang terlibat dalam menentukan kutub pada (b)(i) di atas. …………………………………………………………………………………………

[1 mark / 1 markah]

(c) State one method to increase the induced current in the solenoid. Nyatakan satu kaedah untuk meningkatkan arus aruhan di dalam solenoid. ………………………………………………………………………………………………..

[1 mark / 1 markah]

(d) Diagram 7.2 shows a simple transformer which is not efficient. Rajah 7.2 menunjukkan sebuah transformer ringkas yang tidak cekap.


Based on diagram 7.2, Suggest two modifications that can be done to the transformer in to increase its efficiency. Berdasarkan Rajah 7.2, cadangkan dua pengubahsuaian yang boleh dilakukan kepada transformer untuk meningkatkan kecekapannya.

(i) The thickness of the coiled wire. Ketebalan dawai yang dililit. …………………………………………………………………………………………

[1 mark / 1 markah] Reason

Sebab …………………………………………………………………………………………

[1 mark / 1 markah]


(ii) Characteristic of the core. Ciri teras …………………………………………………………………………………………

[1 mark / 1 markah] Reason

Sebab …………………………………………………………………………………………

[1 mark / 1 markah]



8. Diagram 8.1 shows a pattern of waves formed when water waves with a speed of 6 cm s-1 propagate from a deeper region to shallow region in a ripple tank. Rajah 8.1 menunjukkan corak gelombang air yang terhasil apabila gelombang air dengan laju 6 cm s-1 merambat dari kawasan dalam ke kawasan cetek di dalam sebuah tangki riak.


(a) What is meant by frequency?

Apakah maksud frekuensi? ………………………………………………………………………………………………..

[1 mark / 1 markah]

(b) Based on Diagram 8.1, calculate: Berdasarkan Rajah 8.1, hitung:

(i) The frequency of water waves at the deeper region. Frekuensi gelombang air pada kawasan air dalam.



(ii) The speed of the water waves at the shallow region. Laju gelombang air pada kawasan cetek.


(c) The beach in Diagram 8.2 will be used as a place where fisherman boats are kept. Pantai yang ditunjukkan dalam Rajah 8.2 akan digunakan sebagai tempat bot- bot nelayan berlabuh.


Table 8.3 shows four designs for the location to keep the boats. Jadual 8.3 menunjukkan empat reka bentuk bagi lokasi untuk melabuhkan bot-bot.

Design Reka bentuk

The location to keep the boat Lokasi untuk melabuhkan bot

The height of retaining wall

Ketinggian benteng

Size of slit Saiz celah

W Bay Teluk

High Tinggi

Small Kecil

X Beach Pantai

High Tinggi

Big Besar

Y Beach Pantai

Low Rendah

Small Kecil

Z Bay Teluk

Low Rendah

Big Besar

Table 8.3 / Jadual 8.3


Based on Table 8.3, state the suitable characteristics of designs for the location to keep the boats. Give reason for the suitability of the characteristics. Berdasarkan Jadual 8.3, nyatakan ciri-ciri yang sesuai bagi reka bentuk lokasi untuk melabuhkan bot-bot. Beri sebab bagi kesesuaian ciri-ciri itu.

(i) The location to keep the boat Lokasi untuk melabuhkan bot …………………………………………………………………………………………

[1 mark / 1 markah]

Reason Sebab …………………………………………………………………………………………

[1 mark / 1 markah]

(ii) The height of retaining wall Ketinggian benteng …………………………………………………………………………………………

[1 mark / 1 markah]

Reason Sebab …………………………………………………………………………………………

[1 mark / 1 markah] (iii) Size of slit

Saiz celah …………………………………………………………………………………………

[1 mark / 1 markah]

Reason Sebab …………………………………………………………………………………………

[1 mark / 1 markah]

(d) Based on answers in 8 (c), determine the most suitable designs for the location to keep the boats. Berdasarkan jawapan anda dalam 8 (c), tentukan reka bentuk lokasi yang sesuai untuk melabuhkan bot-bot. ………………………………………………………………………………………………..

[1 mark / 1 markah]



Section B Bahagian B

Answer any one question from this section.

Jawab mana-mana satu soalan daripada bahagian ini.

9. Two identical balloons are heated with same volume of hot water but different quantity of heat. After 3 minutes, the sizes of both balloons are observed as shown in Diagram 9.1 and Diagram 9.2. Dua belon yang serupa dipanaskan dengan isipadu air panas yang sama tetapi kuantiti haba yang berbeza. Selepas 3 minit, saiz kedua-dua belon diperhatikan seperti yang ditunjukkan dalam Rajah 9.1 dan Rajah 9.2.

Diagram 9.1 / Rajah 9.1 Diagram 9.2 / Rajah 9.2

(a) What is the meaning of temperature? Apakah yang dimaksudkan dengan suhu?

[1 mark / 1 markah]

(b) Observe Diagram 9.1 and Diagram 9.2. Compare the heat supplied, the temperature of trapped air and the volume of trapped air in the balloon. Relate the temperature of trapped air and the volume of trapped air to deduce one physics law. Name the physics law. Perhatikan Rajah 9.1 dan Rajah 9.2. Bandingkan haba yang dibekalkan, suhu udara terperangkap dan isipadu udara terperangkap dalam belon. Hubungkaitkan suhu udara terperangkap dengan isipadu udara yang terperangkap untuk membuat deduksi tentang satu hukum fizik. Namakan hukum fizik tersebut.



(c) Diagram 9.3 shows air bubbles produced by a fish in an aquarium. Rajah 9.3 menunjukkan gelembung-gelembung udara dihasilkan oleh seekor ikan di dalam sebuah akuarium.


Explain why the volume of air bubbles increases as it moves towards the surface of water. Terangkan mengapa isipadu gelembung-gelembung udara bertambah apabila ianya bergerak menghampiri permukaan air.


(d) Diagram 9.4 shows the cross section of the pressure cooker. Rajah 9.4 menunjukkan keratan rentas periuk tekanan itu.


You are required to give suggestions in design an electric pressure cooker to cook food in shorter time. Using the appropriate physics concept, explain your modifications based on the characteristic of inner and outer pot, the number of lock, the material of sealer and the additional safety features. Anda dikehendaki memberikan beberapa cadangan untuk merekabentuk satu periuk tekanan elektrik untuk memasak makanan dalam masa yang singkat. Menggunakan konsep fizik yang sesuai, terangkan pengubahsuaian anda berdasarkan ciri-ciri periuk dalam dan periuk luar, bilangan pengunci, bahan pengedap dan ciri keselamatan tambahan.




10. Diagram 10.1 and Diagram 10.2 show an experiment to study a current-carrying conductor in a magnetic field. Rajah 10.1 dan Rajah 10.2 menunjukkan satu eksperimen untuk mengkaji konduktor pembawa arus di dalam medan magnet. When the switch is closed, the combination of the magnetic field and the current produced a resultant force. The copper rod pushed out at distance, d1. When the current is changed, the distance of copper rod change to d2. Apabila suis dihidupkan, kombinasi medan magnet dan arus yang mengalir menyebabkan rod kuprum tertolak keluar pada jarak d1. Apabila nilai arus diubah, jarak rod kuprum berubah kepada d2.



(a) Name the rule used to determine the direction of the force.

Namakan peraturan yang digunakan untuk menentukan arah daya.

[1 mark / 1 markah]


(b) Based on Diagram 10.1 and Diagram 10.2, compare ammeter reading, distance of copper rod and the magnitude of force produced. Berdasarkan Rajah 10.1 dan Rajah 10.2, bandingkan bacaan ammeter, jarak rod kuprum dan magnitud daya yang dihasilkan. State the relationship between electric current with distance of copper rod and the magnitude of force produced. Nyatakan hubungan antara arus elektrik dengan jarak gerakan rod kuprum dan dengan daya yang dihasilkan.


(c) Diagram 10.3 shows a wire is connected to a galvanometer which placed between two magnets of opposite poles. Rajah 10.3 menunjukkan satu wayar yang disambungkan kepada satu galvanometer yang mana terletak antara dua magnet yang berlawanan kutub.


Explain: Terangkan:

(i) why the galvanometer shows a reading when the wire is moved downwards. mengapa galvanometer itu menunjukkan satu bacaan apabila wayar itu digerakkan ke bawah.


(ii) how to determine the direction of the current produced in the wire. bagaimana untuk menentukan arah arus yang mengalir dalam wayar itu.



(d) Diagram 10.4 shows an ac generator. Rajah 10.4 menunjukkan sebuah penjana a.u.

Diagram 10.4 / Rajah 10.4 Suggest modifications that can be made to increase the output current to the generator in Diagram 10.4. State and explain the modifications based on the characteristic of strength of the magnet, shape of the magnet, number of turns of the coil, diameter of the wire of the coil and the speed of rotation. Cadangkan pengubahsuaian yang boleh dilakukan pada penjana dalam Rajah 10.4. Nyatakan dan beri penerangan tentang pengubahsuaian itu berdasarkan kekuatan magnet, bentuk magnet, bilangan lilitan gegelung, diameter dawai pada gelung, dan laju putaran gelung.


TOTAL/JUMLAH 20 marks / 20 markah


Section C Bahagian C



11. Diagram 11.1 shows two buoys of the same weight floating in the sea and in the river. Rajah 11.1 menunjukkan dua buah boya yang sama berat, terapung di dalam laut dan di dalam sungai.

Buoy in the sea

Boya di dalam laut Buoy in the river

Boya di dalam sungai


(a) (i) What is the meaning of weight? Apakah yang dimaksudkan dengan berat?

[1 mark / 1 markah]

(ii) Explain why the sinking levels of the buoy are different in the sea and in the river? Terangkan mengapa paras boya yang tenggelam berbeza di dalam laut dan di dalam sungai?


(b) Diagram 11.2 shows a boy on a rubber raft which is placed on water surface. Rajah 11.2 menunjukkan seorang budak lelaki berada di atas sebuah rakit getah di permukaan air.



The mass of the rubber raft is 3 kg. The volume of water displaced is 0.05 m3. Jisim rakit getah itu adalah 3 kg. Isipadu air yang disesarkan adalah 0.05 m3.

[Density of water / Ketumpatan air = 1000 kgm-3] [Density of rubber raft / Ketumpatan rakit getah = 600 kgm-3]

Calculate Hitung

(i) buoyant force acted on rubber raft. daya apungan yang dikenakan pada rakit getah itu.

(ii) the mass of the boy. jisim budak lelaki tersebut.


(c) Diagram 11.3 shows the specifications of four hydrometers A, B, C and D.

Rajah 11.3 menunjukkan spesifikasi bagi empat hidrometer A, B, C dan D. You are assigned to measure the density of an acid solution. Anda ditugaskan untuk mengukur ketumpatan suatu larutan asid.

Hydrometer A Hidrometer A

Lead shots Biji-biji plumbum

Hydrometer B Hidrometer B

Large diameter of bulb Diameter bebuli besar

Long and small stem Batang panjang dan kecil

Glass wall

Dinding kaca

Plastic wall Dinding plastik

Vacuum Vakum

Long and small stem Batang panjang dan kecil

Small diameter of bulb Diameter bebuli kecil


Hydrometer C Hidrometer C

Hydrometer R Hidrometer R


(i) Study hydrometers A, B, C and D in Diagram 11.3 and explain the suitability of each

characteristics of hydrometer that can be used to measure the density of acid solution. Kaji hidrometer A, B, C dan D dalam Rajah 11.3 dan terangkan kesesuaian setiap ciri-ciri hidrometer yang boleh digunakan untuk mengukur ketumpatan suatu larutan asid. Determine the most suitable hydrometer to be used to measure the density of an acid solution. Tentukan hidrometer yang paling sesuai untuk digunakan bagi mengukur ketumpatan suatu larutan asid.


TOTAL/JUMLAH 20 marks / 20 markah

Large diameter of bulb Diameter bebuli besar

Vacuum Vakum

Short and small stem Batang pendek dan kecil

Short and small stem Batang pendek dan kecil Plastic wall

Dinding plastik

Lead shots Biji-biji plumbum

Small diameter of bulb Diameter bebuli kecil

Glass wall Dinding kaca


EXTRA QUESTION TRIAL SBP 2014

9. Diagram 9.1(a) show a metal cylinder hung on a spring balance in air. The reading of the spring balance in Diagram 9.1(a) is the actual weight of the metal cylinder.

Diagram 9.1(a)

Diagram 9.1(b) and Diagram 9.1(c) show the metal cylinder immersed in cooking oil and water. The reading of the spring balance in Diagram 9.1(b) and 9.1(c) are known as the apparent weight.

Diagram 9.1(b) Diagram 9.1(c)

(a) State an equation involving apparent weight, actual weight and buoyant force? [1 mark]


(b) (i) Using Diagram 9.1(b) and Diagram 9.1(c), compare the apparent weight, the density of the cooking oil and water, and the buoyant force in cooking oil and water.

[3 marks]

(ii) State the relationship between the buoyant force with: - The density of liquid. - The apparent weight.

[2 marks]

(c) Diagram 9.2 shows rod A and rod B of different densities are immersed in water.

Diagram 9.2

Explain why both rods float in water and rod B floats lower than rod A.

[4 marks]

(d) The Ministry of Defence is organizing a competition among the Engineering students to build a submarine. As a team leader, you are required to give some suggestions to design the submarine. Using the appropriate physics concepts, suggest and explain suitable characteristics of the material and design of a submarine that is safe, fast and can travel deep underwater.

[10 marks]

TOTAL 20 marks


10.

Diagram 10.1 and Diagram 10.2 show two circuits with battery P and battery Q which are used to determine the electromotive force, E and the internal resistance, r of each battery. Table 10.1 and Table 10.2 show the readings of the voltmeter and ammeter when the switch in each circuit is off and on.

Diagram 10.1

Circuits with battery P

Switch off Switch on Voltmeter reading 15.0 V 12.0 V

Ammeter reading 0.0 A 2.0 A

Table 10.1

Diagram 10.2

Circuits with battery P

Switch off Switch on Voltmeter reading 15.0 V 10.0 V

Ammeter reading 0.0 A 1.5 A

Table 10.2

(a) (i) What is meant by electromotive force? [1 mark]

(ii) Based on Table 10.1 and Table 10.2, compare the electromotive force, and the reading of

voltmeter and ammeter when the switch is on. State the relationship between the voltage losses with the ammeter’s reading and internal resistance.

[5 marks]


(b) Batteries with internal resistance connected in series and in parallel as shown in Diagram 10.3 will affect the brightness of the bulbs. Explain why.

Diagram 10.3 [4 marks]

(c) Diagram 10.4 shows a stove coil that contains heating filament. Suzanna uses the stove to cook.

Diagram 10.4

By using the concepts in physics, suggest and explain suitable modifications to the heating filament to increase its efficiency.

[10 marks]

TOTAL 20 marks


TRIAL SBP 2014

11. Diagram 11.1 shows a prism periscope in a submarine.

Diagram 11.1

(a) What is the light phenomena occurs in prism periscope?

[1 mark]

(b) (i) Copy Diagram 11.2 and draw the ray path to show the formation of image by a prism periscope.

Diagram 11.2 [2 marks]

(ii) State the characteristics of the image formed.

[2 marks]


(c) Diagram 11.3 shows an incomplete light ray path entering a glass prism. The refractive index of the glass prism is 1.5.

Diagram 11.3

(i) Calculate the critical angle of the glass prism.

[1 mark]

(ii) Copy Diagram 11.3 and complete the ray path and state the incident angle. [2 marks]

(iii) Calculate the refracted angle after the light pass through point O.

[2 marks]

(d) Diagram 11.4 shows Farah is using an astronomical telescope to see a distant object.

Diagram 11.4


Table 11 shows the specifications of four simple astronomical telescopes, J, K, L and M. You are required to determine the most suitable telescope to see clearer distant object. Study the specifications of all the four telescopes in Table 11 below:

Telescope Type of lenses

Focal length of objective lens, fo / Focal length of

eyepiece lens, fe

Distance between two

lenses, L (cm) Power of eyepiece

J Concave 80 cm / 2 cm L > fo + fe high K Concave 6 cm / 2 cm L = fo + fe low L Convex 80 cm / 2 cm L = fo + fe high M Convex 6 cm / 2 cm L > fo + fe low

Table 11

Explain the suitability of each characteristic and then determine the most suitable telescope used to see distant object clearly. Give reason for your choice.

[10 marks]

TOTAL 20 marks


12. Diagram 12.1 shows a wave is formed on the screen of a cathode ray oscilloscope (CRO). The time base

of the CRO is set at 1 ms cm-1.

Diagram 12.1

(a) What is the meaning of cathode ray? [1 mark]

(b) Explain how the CRO can be used to determine a short time interval.

[4 marks] (c) Based on the wave on CRO in Diagram 12.1,

Calculate (i) the period of the wave (ii) the frequency of the wave (iii) the wave length of the wave if the speed of sound wave is 330 m s-1.

[5 marks]

(d) Diagram 12.2 shows a row of street lamps. The lamps will be automatically switched on at night or when the surrounding is dark. The lamps will be automatically switched off at day time or the surrounding is bright.

Diagram 12.2


Diagram 12.3 shows four transistor circuits that will be used in the street lighting circuit. You are required to determine the most suitable circuit to switch on the street lamps automatically at night. Study the specifications of the four circuits based on the following aspects:

(i) Number of resistors in series used (ii) Position of light dependent resistor, LDR (iii) Type of transistor used (iv) Additional component used to light the lamp connected to 240V a.c. supply

Explain the suitability of each aspect and determine the most suitable circuit to be used. Give reasons for your choice.

[10 marks]

Circuit P

Circuit Q

Circuit R

Circuit S

Diagram 12.3

TOTAL 20 marks


PRECAUTION STEPS FOR INVESTIGATIVE EXPERIMENTS

NO.

TYPE OF EXPERIMENT INVOLVING

PRECAUTIONS THAT CAN BE TAKEN

1 Light a. Do the experiment in a dark room to get clear and sharp image

b. Lens, screen and object must be in line and of same level c. Make sure our eyes perpendicular to the reading of

meter rule to avoid parallax error

2 Spring a. Make sure the spring is not loaded beyond the elastic limit (spring return to original length when load is taken off)

b. Make sure our eyes perpendicular to the reading of meter rule to avoid parallax error

3 Electric / Electronic a. Make sure all the connections are correctly and tightly b. Switch off the circuit after taking the reading to avoid over

heating of the wires (resistance increase) c. Make sure our eyes perpendicular to the reading of

ammeter / voltmeter to avoid parallax error

4 Heat a. Stirred the liquid constantly, so the temperature rises evenly

b. Aluminium block must be wrapped with insulating material to prevent heat lost

c. Thermometer bulb should be smeared with oil to give better thermal contact with the block

d. Make sure our eyes perpendicular to the reading of thermometer to avoid parallax error

5 Measuring

instrument such as ammeter, voltmeter, meter rule etc.

Make sure our eyes perpendicular to the reading of ......................... (instrument) to avoid parallax error


PAPER 3 SECTION B

PLANNING EXPERIMENT INFERENCE RV depends on MV

HYPHOTESIS MV increase, RV increase

OR MV increase, RV decrease

AIM To investigate the relationship between ……….MV……….. and ……….RV…………….

VARIABLES MV : RV : FV :

LIST OF APPARATUS

ARRANGEMENT OF APPARATUS

PROCEDURE

TABULATE DATA

MV RV

ANALYSING DATA

RV

MV


OPERATIONAL DEFINITION INERTIA: Time taken for one complete oscillation // Period

PRESSURE IN LIQUID: Different height in manometer

VOLUME OF GAS: Length of mercury or sulfuric acid // Length of trapped air

STRENGTH OF ELECTROMAGNET: Number of pins attracted

SPEED OF ROTATION: Height of magnet bar released BRIGHTER: Current flow


Experiment based on instrument: NO. INSTRUMENTS EXPERIMENT 1. Pendulum Simple pendulum 2. Hacksaw blade Inertia 3. Slotted weight, spring Hooke’s law 4. Ticker tape F=ma 5. Marble, lead shot, measuring cylinder Buoyant force 6. Eureka can Buoyant force 7. Syringe Boyle's law 8. Round bottom flask, bourdon gauge Pressure law 9. Sulphuric acid // mercury Charles' law

10. Beaker, pin real +apparent depth 11. Glass block, ray box refraction of light 12. Mirror, ray box reflection of light 13. Speakers, sound generator Interference of sound 14. Pins, solenoid strength of electromagnet


Section A Bahagian A

Answer all questions in this section.

Jawab semua soalan dalam bahagian ini.

1. A student carries out an experiment to investigate the relationship between the length of air column, l and the temperature in Kelvin ,T ,for a fixed mass of air. The air is trapped by mercury column in a capillary tube. Diagram 1.1 shows the thermometer and capillary tube tied on meter rule. The sealed end of the capillary tube is placed at the zero mark on the scale of the ruler. Seorang murid menjalankansatueksperimenuntukmengkajihubunganantara panjang turus udara , l dengan suhu dalam Kelvin ,T bagisatu jisim udara tertentu. Udara tersebut terperangkap dalam tiub rerambut oleh satu turus raksa. Rajah 1.1 menunjukkan termometer dan tiub rerambut diikat pada pembaris meter. Hujung tertutup tiub rerambut diletakkan pada tanda sifar skala pembaris.


The thermometer and capillary tube are placed into a beaker filled with water. The arrangement of the apparatus is shown in Diagram 1.2. Termometer dan tiub rerambut dimasukkan ke dalam bikar yang berisi air. Susunan radas ditunjukkan dalam Rajah 1.2.



Ice cubes are put into the beaker and the water is stirred until the temperature,q reached at 0 oC.

The actual reading of the length of the air column ,l is shown in Diagram 1.3. Ketulan ais dimasukkan ke dalam bikar itu dan air dikacau sehingga suhu ,q, mencapai 0 oC. Bacaan sebenar panjang turus udara, l , ditunjukkan pada Rajah 1.3 Then the water is heated and stirred until the temperature , q become 10oC. The actual corresponding reading of the length of the air column, l is shown in Diagram 1.4. Kemudian bikar itu dipanaskan sehingga suhu ,q menjadi 10 oC. Bacaan sebenar bagi panjang turus udara, l , ditunjukkan pada Rajah 1.4. The procedure of the heating process is repeated with temperatures, 30oC, 50oC, 70oC, and 90oC. The actual corresponding readings of the lengths of the air column, are shown in Diagram 1.5, 1.6, 1.7, 1.8 and 1.9. Kaedah proses pemanasan diulangi dengan suhuq = 30oC, 50oC, 70oC, dan 90oC. Bacaan sebenar panjang turus udara, l, yang sepadan masing-masing ditunjukkan pada rajah 1.5, 1.6, 1.7, 1.8 dan 1.9.


(a) Diagram 1.3 shows the meniscus of the mercury inside the capillary tube. Rajah 1.3 menunjukkan meniskus raksa di dalam tiub rerambut

Diagram 1.3 / Rajah 1.3 In Diagram 1.3 mark the correct position of the eye while taking the reading of the length of the air column. (You may draw a straight line and symbol of eye at the diagram) Pada Rajah 1.3 tandaka nkedudukan mata yang betul semasa mengambil bacaan panjang turus udara. (Anda boleh melukis garisan lurus dan simbol mata pada rajah)

[1 mark / 1 markah]


Air column length reading at , q = 0oC Bacaan panjang turus udarapada,q = 0oC

l = ……………… cm

T = …………….K




l = ……………… cm

T = …………….K



l = ……………… cm

T = …………….K



l = ……………… cm

T = …………….K




l = ……………… cm

T = …………….K



l = ……………… cm

T = …………….K

(b) Based on the experiment information, state Berdasarkan maklumat eksperimen, nyatakan

(i) the variable that is manipulated pembolehubah yang dimanipulasikan ………………………………………………………………………………………...

[1 mark / 1 markah]

(ii) the variable that responds pembolehubah yang bergerak balas ………………………………………………………………………………………..

[1 mark / 1 markah]


(iii) the variable that is kept constant pembolehubah yang ditetapkan ………………………………………………………………………………………...

[1 mark / 1 markah]

(c) Based on diagrams 1.4, 1.5, 1.6, 1.7, 1.8 and 1.9, determine the length of air column, l, and their corresponding temperatures, q. Calculate the temperature in Kelvin, T , for each q using the equation; T = q + 273 Berdasarkan Rajah 1.4, 1.5, 1.6,1.7,1.8, dan 1.9 , tentukan panjang turus udara , l yang sepadan dengan suhu, q . Kirakan suhu dalam Kelvin, T menggunakan persamaan; T = q + 273 Tabulate your result for q , T and l in the space below. Jadualkan keputusanan bagi q , T dan l pada ruang di bawah.

[5 marks / 5 markah] (d) On the graph paper, plot a graph of , l against T

Pada kertas graf lukiskan graf , l melawan T.



(e) Based on your graph, state the relationship between l and T. Berdasarkan graf anda tentukan hubungan antara l dengan T. ………………………………………………………………………………………………

[1 mark / 1 markah]

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

[1 mark / 1 markah]



2. Diagram 2 shows a graph of IC against IB of an experiment to investigate relationship between the base current and collector current. Rajah 2 menunjukkan graf IC terhadap IB eksperimen untuk menyiasat hubungan antara arus tapak dan arus pengumpul.

Graph of IC against IB Graf IC melawan IB

Diagram 2 / Rajah 2


(a) Based on the graph, Berdasarkan graf,

(i) State the relationship between IC and IB. Nyatakan hubungan antara IC dan IB. .......................................................................................................................................

[1 mark / 1 markah]

(ii) Determine the value of IC if IB = 3.0 µA Tentukan nilai IC jika IB = 3.0 µA


(iii) Calculate the gradient of the graph, m. Show on the graph how you determine the gradient. Kirakan kecerunan graf, m. Tunjukkan pada graf bagaimana anda menentukan kecerunan.

m = .............................................................



(b) Given by the following equation: Diberi persamaan berikut:

Where, Di mana, IE is the emitter current IE adalah arus pemancar IC is the collector current IC adalah arus pengumpul IB is the base current IB adalah aras tapak Using the value of gradient of graph, m obtained in a(iii), calculate the emitter current. Dengan menggunakan nilai kecerunan graf, m diperolehi dalam (iii), hitungkan arus pemancar.

IE = .............................................................


(c) State two precautions that should be taken for this experiment. Nyatakan dua langkah berjaga-jaga yang perlu diambil untuk eksperimen ini. .......................................................................................................................................

………………………………………………………………………………………..



CE

B

II =I


Section B Bahagian B



3. A drinking straw is placed in a glass of water. When the straw is observed from a high angle, it does not look bent very much as shown in Diagram 3.1. Sebatang straw minuman diletakkan di dalam sebuah gelas yang berisi air. Apabila straw diperhatikan dari sudut tinggi, straw itu tidak kelihatan bengkok seperti dalam Rajah 3.1.

Rajah 3.1 / Diagram 3.1


When the straw is observed from a low angle, it looks more bent than before as shown in Diagram 3.2. Apabila straw itu diperhatikan dari sudut rendah, straw itu kelihatan lebih bengkok daripada sebelumnya seperti yang ditunjukkan dalam Rajah 3.2.

Based on the observations: Berdasarkan pemerhatian anda:

(a) State one suitable inference. Nyatakan satu inferens yang sesuai.

[1 mark / 1 markah]

(b) State one suitable hypothesis. Nyatakan satu hipotesis yang sesuai.

[1 mark / 1 markah]

(c) With the use of apparatus such as a ray box, glass block, protractor, paper and other apparatus, describe one experiment to investigate the hypothesis stated in (b). Dengan menggunakan radas seperti sebuah kotak sinar, blok kaca, jangka sudut, dan radas-radas lain, terangkan satu eksperimen untuk menyiasat hipotesis yang dinyatakan di (b).



4. Diagram 4.1 and Diagram 4.2 show an assembly in a school hall. In Diagram 4.1, a prefect discovered that a few rows of student could not hear the principal’s voice clearly. Rajah 4.1 dan Rajah 4.2 menunjukkan perhimpunan di dewan sekolah. Dalam Rajah 4.1, seorang pengawas mendapati bahawa beberapa baris pelajar tidak dapat mendengar suara pengetua dengan jelas.


When the two speakers are far apart as in Diagram 4.2, the prefect found that more rows of students could hear the principal’s voice clearly. Apabila kedua-dua pembesar suara berjauhan seperti dalam Rajah 4.2, pengawas mendapati bahawa lebih banyak barisan pelajar dapat mendengar suara pengetua dengan jelas.


Based on the observations: Berdasarkan pemerhatian anda:

(a) State one suitable inference. Nyatakan satu inferens yang sesuai.

[1 mark / 1 markah]

(b) State one suitable hypothesis. Nyatakan satu hipotesis yang sesuai.

[1 mark / 1 markah]


(c) With the use of apparatus such as a signal generator, speakers and other apparatus, describe one experiment to investigate the hypothesis stated in (b). Dengan menggunakan peralatan seperti penjana isyarat, pembesar suara dan alat lain, terangkan satu eksperimen untuk menyiasat hipotesis yang dinyatakan di (b).


Success is no accident. It is HARD WORK, PERSEVERANCE,

LEARNING, STUDYING

and most important of all, LOVE of what you are doing.

Good luck for your SPM [29 NOV 2018]

To infinity and beyond…

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