SCIENCE FORM 3 MODULE 7 ELECTRICITY
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1 PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI SIENE FORM 3 MOULE 7 PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI ELETRIITY MINISTRY OF EUTION MLYSI
2 MOULE 7: ELETRIITY rahan: 1. Modul ini mengandungi empat puluh satu soalan. Semua soalan adalah dalam bahasa Inggeris. 2. Modul merangkumi enam konstruk yang diuji K1-Memahami soalan dalam ahasa Inggeris K3-Memahami istilah sains dalam ahasa Inggeris K5-Menguasai konstruk pengetahuan K6-Menguasai konstruk kefahaman K7-Menguasai konstruk kemahiran K10-Memahami pengajaran dan pembelajaran dalam ahasa Inggeris 3. Murid hendaklah menulis maklumat diri dalam kertas jawapan objektif disediakan. Murid juga perlu memastikan maklumat konstruk, nombor soalan dan jumlah soalan seperti yang dibaca oleh guru di dalam ruangan disediakan dalam kertas jawapan objektif sebelum ujian. 4. agi soalan objektif, anda perlu menandakan jawapan dengan menghitamkan pilihan jawapan pada pilihan jawapan,, atau pada kertas jawapan objektif. ontoh: ntara berikut, yang manakah haiwan?. Pokok. Kambing. Kereta. Pen E 5. Untuk soalan subjektif, jawapan hendaklah ditulis pada kertas berasingan yang disediakan oleh guru. 6. agi soalan 37 hingga 41, murid hendaklah mendengar arahan daripada guru. 7. Jawab semua soalan. Modul ini mengandungi 24 halaman bercetak 2
3 1 Two insulating materials are rubbed together to produce static electrical charges. How are static electrical charges formed? The materials are tied together The materials are pressed together The materials are moved against each other repeatedly 2 Electrical energy is used for lighting, cooking, freezing and entertainment but not for driving and cycling. Which of the following does not need electrical energy? riving and cycling Lighting and cooking ooking and freezing Freezing and entertainment 3 Static electrical charges are charges which are at rest. Which of the following statement is correct? Static electrical charge do not move move randomly move slowly 4 The area around a magnet which has the influence of the magnet is called a magnetic field. It consists of magnetic field lines which do not cross each other. hoose a correct statement. Magnetic field is found outside a magnet Magnetic field is formed inside a magnet Magnet is made up of magnetic field lines that cross each other in the center 3
4 5 n electromagnet can be made stronger if we increase the number of coils in the solenoid. In order to make an electromagnet stronger, the number of coils should be raised reduced kept the same 6 Electrostatic is the study of electrical charges that do not move. They can be produced by rubbing two objects together. hoose the correct statement. I II III Electrostatic is the study of static electrical charges Electrical charges that move is electrostatics Rubbing two objects produces electrical charges I and II I and III II and III I, II and III 7 Various sources of electrical energy in everyday life are dry cell, accumulator and generator. This means that dry cell, accumulator and generator can consume electrical energy convert electrical energy produce electrical energy 4
5 8 The number of positive charges and negative charges in a neutral object is the same. Which of the following object is neutral? Object Number of positive charges Number of negative charges X 7 7 Y 4 10 Z n electrical conductor a resists current flow. This property is known as voltage current resistance 10 Electromagnetism is the magnetism produced by the flow of electric current electricity produced by a magnet current found in a magnet 5
6 11 The figure shows and electric circuit. When the switch is turned on, electric current flows and the bulb lights up. The information describes a /an circuit closed open parallel 12 Which of the following shows bulbs P, Q and R are arranged in series? P P Q R Q R P Q R 6
7 13 Which statement is related to the concept of electrostatics? Electric current flows through a conductor produces a magnet positively charged balloon attracts a negatively charged balloon conductor wire becomes hot when electric current flows through it 14 Given that V = IR. R represents Electric current Resistance Voltage 7
8 15 Which of the following is correctly matched? Symbol Electrical component ry cell Rheostat Voltmeter mmeter 16 hoose a device that contains a permanent magnet. electric iron bread toaster electric bell electric kettle 8
9 17 Voltage is measured in ampere ohm volt 18 Electric current flows through a conductor. What is the type of magnet produced? Electromagnet Electromagnetism Permanent magnet 19 The figure shows the observations when two charged objects are brought close together. I II III Which figures best describe the observations? I and II I and III II and III I, II and III 9
10 20 Which of the following circuits shows the correct way to measure the voltage of the batteries? 10
11 21 The figure shows an electric circuit with three similar bulbs X, Y and Z. X Y Z When the switch is turned on, which of the following is the correct observation? ulb X is the brightest ulb Y is the brightest ulb X and Y have the same brightness ulb X, Y and Z have the same brightness 11
12 22 ased on the figure, which of the following is the correct direction of the needles of compasses X and Y. ompass X ompass Y 12
13 23 The diagram shows the magnetic field formed when two bar magnets X and Y are placed side by side X Y Which of the following pairs shows the correct poles of the magnet? X Y North North South South North South South North 13
14 24 The figure shows a complete series circuit. ased on the figure, choose the correct statement. The total current increases when another bulb is added to the circuit in series The sum of individual voltage across each bulb is higher than the total voltage of the circuit The current flowing through each bulb is the same as the total current in the circuit 14
15 25 n electrical circuit is set up as shown. V V 1 V 2 Two bulbs are arranged in parallel. What is the relationship between V, V 1 and V 2? V = V 1 + V 2 V = V 1 = V 2 V = V 1 V 2 15
16 26 The figure shows an electrical circuit with five identical bulbs P, Q, R, S and T. P Q S R T If bulb S burns out, which of the following bulbs will continue to light up? P and Q only P, Q and R only P, Q, R and T only 27 Ohm s Law states that : urrent ( I ) = Voltage ( V ) Resistance ( R ) ased on the given information, choose the correct statement. when voltage is increased, the current increases when resistance is increased, the current increases when voltage is decreased, the current increases 16
17 28 The graph shows the relationship between current and voltage. urrent ( ) Voltage ( V ) What happens to the current when the voltage is increased to 10 V? increases decreases remains the same 17
18 29 Three objects, and M with different charges are placed as in Figure 1. M Figure 1 M Figure 2 When the three objects are brought nearer to each other, the observation is as in Figure 2. ased on Figure 2, what is your inference? and have the same charges and have different charges M and have the same charges 30 In an electric circuit with a 2Ω resistor, a battery supplies a voltage of 4V. If given V = IR, calculate the current which flows in the circuit
19 31 The figures below show a part of a complete circuit. I 1 Ω 3 Ω II 2 Ω 2 Ω III 4 Ω 4 Ω IV 8 Ω 8 Ω Which circuits have a total resistance of 4 Ω I and IV only II and III only II, III and IV only I, II, III and IV 19
20 32 The figure shows an electric circuit. 3 V 0.5 R What is the value of R? 1.5 Ω 4.5 Ω 6.0 Ω 9.0 Ω 20
21 33 The figure shows a complete series circuit 1 2 ased on the figure, state the relationship of the voltage value. V = V 1 V 2 V = V 1 - V 2 V = V 1 = V 2 V = V 1 + V 2 21
22 34 circuit is set up as shown. 1 Ω 1 Ω If the current that passes through the circuit is 2, determine the reading shown on the voltmeter = + R R 1 R V 1.0 V 1.5 V 2.0 V 35 current of 4 flows through an electrical appliance which consists a 6 Ω fuse. alculate the voltage used by the appliance. 10 V 12 V 24 V 46 V 22
23 36 The figure shows three electrical circuits. V 1 V 2 V 3 If each dry cell has a voltage of 1.5 V, determine the voltage reading of each voltmeter. V 1 V 2 V Question 37 to 41. Listen carefully to the text read by the teacher. Then, answer the questions. 37 How many path ( s ) can be found in a series circuit What type of charges is produced when strong wind rubs against water particles in the clouds? positive negative neutral 23
24 39 escribe the direction of current and electron flow in an electric circuit I II III IV Electric current flows from negative terminal to the positive terminal IElectrons flow from the positive terminal to the negative terminal Electric current flows from the positive terminal to the negative terminal Electrons flow from the negative terminal to the positive terminal I and II only I and III only II and III only III and IV only 40 Which figure shows the correct arrangement of the ammeter and voltmeter in the electric circuit? Electromagnet Electromagnetism Permanent magnet 41 What happen when a north pole of a magnet is brought near to a south pole of other magnet? The second magnet moves toward the first magnet The second magnet moves away from the first magnet The second magnet remains at the same position 24
25 KEMENTERIN PELJRN MLYSI KERTS JWPN OJEKTIF Ujian iagnostik Nama Pelajar: Tahun/ Tingkatan : 3 Mata Pelajaran: SINS Nama Sekolah: Modul: 7 GUNKN PENSIL 2 TU SHJ. TENTUKN TIP-TIP TN ITU HITM N MEMENUHI KESELURUHN RUNG. PMKN HINGG HIS MN-MN TN YNG N UH SIL HITMKN JWPN I WH MENGIKUT HURUF JWPN YNG N PILIH Konstruk No. Soalan Jumlah Soalan ilangan Soalan Gagal ijawab Kegunaan Guru K1 K K5 K K K
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PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI SIENE FORM 3 MOULE 9 PPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMIPPSMI STRS N GLXIES MINISTRY OF EUTION
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