SOALAN FIZIK

LATIHAN CUTI SEKOLAH

OBJECTIVE QUESTION

1 An object is placed 18 cm in front of a concave mirror which has a focus length 10 cm. What are the characteristics of the image?Apabila satu objek diletakkan sejauh 18 cm dari sebuah cermin cekung yang mempunyai panjang fokus 10 cm, apakah ciri imej yang terhasil?

A real, inverted and magnifiednyata , songsang dan lebih besar

B virtual, inverted and magnifiedmaya , songsang dan lebih besar

C real, upright and diminishednyata , tegak dan lebih kecil

D virtual, upright and diminishedmaya , tegak dan lebih kecil

2 Diagram shows a ray of light passes from medium J to medium K.Rajah menunjukkan lintasan sinar cahaya merambat dari medium J ke medium K.

Medium J

Medium K

Which of the following statements is true?Pernyataan yang manakah berikut adalah benar?

A Optically denser medium J higher than medium KKetumpatan optik medium J lebih tinggi daripada medium K

B Speed of light in medium J higher than in medium KLaju cahaya dalam medium J lebih tinggi daripada dalam medium K

C Refractive index of medium J more than refractive index of medium KIndeks biasan medium J lebih tinggi daripada indeks biasan medium K

3 Diagram shows a ray of light travels from medium X to air at an angle of incidence is 40 o.Rajah menunjukkan satu sinar cahaya merambat dari bahan X ke udara pada sudut tuju 40 o.

If the refractive index of medium X is 1.12, the direction of refracted ray start from O is

Jika indeks biasan bahan X ialah 1.12, lintasan cahaya seterusnya bermula dari O ialah

A OEB ODC OCD OB

4 Diagram shows a ray of light travels from medium M to medium N which has different optically denser.Rajah menunjukan satu sinar cahaya dituju dari medium M ke medium N yang mempunyai ketumpatan optik yang berbeza.

Which of the following statement is true?Pernyataan yang manakah berikut adalah benar?

A An angle of reflection is 55 o

Sudut pantulan adalah 55oB Critical angle of medium M less than 35o

Sudut genting medium M kurang daripada 35oC Medium M less dense than medium N

Medium M kurang tumpat daripada medium N

5 A small of light source is placed at the focal point of a convex lens will be producesSatu sumber cahaya yang kecil diletakkan pada fokus utama satu kanta cembung akan menghasilkan

A parallel light rays /alur cahaya selariB refracted light rays / alur cahaya terbelauC light rays converge /alur cahaya menumpuD light rays diverge /alur cahaya mencapah

6 Which of the lenses are suitable to form a compound microscope?Pasangan kanta yang manakah paling sesuai untuk membina sebuah mikroskop

majmuk ?

A Two concave lenses have focal length 3 cm and 120 cmDua kanta cekung yang mempunyai panjang fokus 3 cm dan 120 cm

B Two convex lenses have focal length 3 cm and 120 cmDua kanta cembung yang mempunyai panjang fokus 3 cm dan 120 cm

C Two concave lenses have focal length 3 cm and 5 cmDua kanta cekung yang mempunyai panjang fokus 3 cm dan 5 cm

D Two convex lenses have focal length 3 cm and 5 cmDua kanta cembung yang mempunyai panjang fokus 3 cm dan 5 cm

7 Diagram shows the displacement-time graph of wave.Gambar rajah menunjukkan graf sesaran-masa bagi suatu gelombang.

Base on the graph, which part is an amplitude?Berdasarkan graf di atas, yang manakah merupakan amplitud?

8 Differences between a transverse wave and a longitudinal wave is aPerbezaan di antara gelombang melintang dan gelombang membujur ialah dari

segi

A the amplitude of wave / amplitud gelombangB the speed of propagation of wave / halaju gelombang merambatC the period of propagation of wave / tempoh gelombang merambatD the direction of vibration of particles with the direction of the propagation of

the wavearah getaran zarah medium dengan arah rambatan gelombang

9 The diagram shows an interference pattern of two coherent water waves of sources, P and Q.Rajah menunjukkan satu corak interferens disebabkan oleh dua sumber gelombang air, P dan Q yang koheren.

Which of the positions A, B, C and D does the amplitude of waves are zero?Antara titik berlabel A, B, C dan D yang manakah menunjukkan amplitud gelombang adalah sifar?

10 Diagram shows two wave form for sound note P and Q.

Rajah menunjukkan dua bentuk gelombang bagi not bunyi P dan Q.

Which of the following statement is true?Pernyataan yang manakah adalah benar?

A The quality of note P better than the quality of note QKualiti not P lebih baik daripada kualiti not Q

B The loudness of note P lowers than the loudness of note Q Kenyaringan not P lebih rendah daripada kenyaringan not Q

C The pitch of note P lowers than the pitch of note QKelangsingan not P lebih rendah daripada kelangsingan not Q

11 In a Young`s double-slit experiment, the distance between bright fringes and dark fringes is not depending byDalam satu eksperimen dwicelah Young, jarak pemisahan antara pinggir-pinggir cerah dan gelap tidak dipengaruhi oleh

A the colour of lightwarna cahaya digunakan

B separation distance between the slitsjarak pemisahan dwi-celah

C the intensity of lightkeamatan punca cahaya digunakan

D distance between the sources and the detector planejarak antara sumber dan satah pengesan

12 The resistance of a conductor decrease whenRintangan suatu konduktor logam berkurang apabila

P - the temperature decrease /suhunya dikurangkanQ - the length decrease /Panjangnya dikurangkanR - the diameter decrease /Ketebalannya dikurangkan

A P dan QB P dan RC Q dan RD P,Q dan R

13 The diagram shows two resistor in parallel circuit.Rajah menunjukkan dua perintang yang disambung secara selari.

What is the reading of ammeter?Berapakah nilai bacaan ammeter itu?

A 1.2 AB 2.0 AC 3.0 AD 5.0 AE 7.2 A

14 A circuit contains four identical bulbs , A, B, C and D as shown in the diagram below.

Gambar rajah menunjukkan litar yang mengandungi mentol-mentol A , B , C dan D yang serupa.

Which bulb will be the brightest ? Mentol manakah yang akan menyala paling terang ?

15 If each resistor is identical, which of the following circuit produce the highest effective resistance?

Litar yang manakah menghasilkan rintangan berkesan paling besar jika setiap perintang adalah serupa ?

16 A vacuum cleaner of 800 W is connected to a 240 V power supply. Which of the following magnitude of electric current and fuse is the most suitable?

Sebuah pembersih vakum berkuasa 800 W disambungkan dengan bekalan kuasa 240 V. Antara nilai arus dan fius yang manakah paling sesuai digunakan ?

Electric current fuse

Arus (A) Fius (A)

A 0.30 1B 0.30 2C 3.33 1D 0.30 5E 3.33 5

17 The graph shown below is the relationship between voltage and the electric current for 3 identical bulbs.

Graf di bawah menunjukkan hubungan antara voltan dengan arus bagi tiga mentol serupa.

Which of the following circuit diagrams would show the same results as the above graph?Antara gambar rajah litar berikut manakah yang akan memperolehi keputusan seperti graf di atas ?

18 A diagram shows an electric kettle. Gambar rajah menunjukkan satu cerek elektric.

A B

C D

The coil form of heating element, P is used because it give Pemanas rendam P berbentuk gegelung kerana

A high resistance rintangan tinggi

B high density ketumpatan tinggi

C high strength kekerasaan tinggi

D high melting point takat lebur tinggi

19 Diagram shows a bar magnet moves towards solenoid.Rajah menunjukkan satu magnet bar digerakkan mendekati gegelung.

Which of the following sets of information about X and Y are true?Antara kutub pada hujung X dan Y berikut yang manakah benar?

Hujung X Hujung Y

A South /Selatan South /SelatanB North /Utara North /UtaraC South /Selatan North /Utara

P

D North /Utara South /Selatan

20 Fuse is using in the electrical circuit toFius digunakan dalam litar elektrik untuk

A increase electrical power menambah kuasa elektrik

B reduce the electrical energymengurangkan tenaga elektrik

C maintain the voltage of power supplymengekalkan beza keupayaan bekalan kuasa

D brake off the circuitmemutuskan litar apabila litar pintas berlaku

SOALAN STRUKTUR KERTAS 2

1 Diagram 1.1 and 1.2 show the parallel rays of light directed toward the concave mirrors, X and Y.Rajah 1.1 dan Rajah 1.2 menunjukkan cahaya selari menuju ke permukaan cermin cekung X dan cermin cekung Y.

DIAGRAM 1.1 DIAGRAM 1.2 RAJAH 1.1 RAJAH 1.2

CP is the radius of curvature, and F is the focal point of the mirrors.CP ialah jejari kelengkungan dan F ialah titik fokus bagi cermin-cermin itu.

(a) Based on Diagram 1.1 and 1.2 , state one common characteristic Berdasarkan Rajah 1.1 dan Rajah 1.2, nyatakan satu kesamaan

(i) of the rays of light after hit the surface of the mirrors.pada sinar cahaya selepas terkena permukaan cermin-cermin itu.

…………………………………………………………………………………...............

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

(ii) of the position of the focal point, F and the radius of curvature, CP of the mirrors.kedudukan titik fokus, F dengan jejari kelengkungan, CP cermin-cermin itu.

…………………………………………………………………………………...............

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

(b) CompareBandingkan

(i) the curvature of the concave mirror X and Y.kelengkungan cermin cekung X dan cermin cekung Y.

…………………………………………………………………………………...............

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

(ii) the focal length of the concave mirror X and Y.panjang fokus cermin cekung X dan cermin cekung Y.

…………………………………………………………………………………...............

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

(c) Based on your answer in (b), state the relationship between the curvature and the focal length of the mirrors.Berdasarkan jawapan anda dalam (b), nyatakan hubungan di antara bentuk kelengkungan dengan panjang fokus cermin-cermin itu.

………………………………………………………………………………………...............

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

(d) When the source of light is placed at the focal point F of mirror Y, what happen to the reflacted ray?

Apabila sumber cahaya diletakkan pada titik fokus F cermin cekung Y, apakah yang terjadi kepada sinar yang dipantulkan?

………………………………………………………………………………………...............

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

(e) State one instrument that used the effect of light stated in (d).Give the reason for your answer.Nyatakan satu alat yang menggunakan kesan yang anda nyatakan dalam (d).Jelaskan jawapan anda.

………………………………………………………………………………………..............

………………………………………………………………………………………..............

………………………………………………………………………………………...............[2 marks]

SOALAN STRUKTUR KERTAS 3

1 The experiment is carried out to study Archimedes principle. A rod which is 10 cmlong is marked at intervals of 1 cm and suspended from the hook of spring balance.The rod is lowered into a liquid as shown in figure 1. The length of rod below theliquid level is measured and the reading on the spring balance is recorded. Theexperiment is started by lowering the rod to a depth of 5.0 cm and the reading on thespring balance, W/N is recorded. The experiment is repeated by lowering the rod todifferent depth, i.e h = 6.0 cm, 7.0 cm, 8.0 cm , 9.0 cm and 10 cm.

Figure 2(a), 2(b) , 2(c) , 2(d), 2(e) and 2(f) show the result of experiment

a) Base on the experiment identify ;(i) The manipulated variable……..…..…………………………………………………………..............[1 mark](ii) The responding variable………………………………………………………………………………[1 mark](iii) The fixed or constant variable……………………………………………………………………………..[1 mark](b) Base on Figure 2(a), 2(b) , 2(c) , 2(d), 2(e) and 2(f) determine the readings onthe spring balance, W when h is equal to 5.0cm, 6.0 cm, 7.0 cm, 8.0 cm 9.0 cmand 10.0cm .Tabulate your reading in the space below .[5 marks]