PHYSICS TALK SMKTP 2011

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  • 1. Nice to see you 116/11/2011 hro
  • 2. 1 2 3 46/11/2011 hro
  • 3. 1 ATTITUDE Read 1 2 Take note 3 4 Revision Recall 5 Evaluate PROACTIVE, POSITIVE THINKING,6/11/2011 PHYSICALLY AND MENTALLY HEALTHY . hro
  • 4. 2 TIME MANAGEMENT ? BEFORE EXAM, DURING EXAM 6/11/2011 hroHajah Rokiah Hj Othman smktp2011
  • 5. 3 Skills In Physics6/11/2011 hro
  • 6. 4 physics Examination papers 6/11/2011 hro
  • 7. Physics Assessments Format SPM 2011 Paper 1 - 4531/1 Paper 2 - 4531/2 Paper 3 - 4531/3 Peka physics 4531/46/11/2011 hro
  • 8. 6/11/2011 hro
  • 9. 6/11/2011 hro
  • 10. 1. INTRODUCTION TO PHYSICS WHAT TO LEARN? 2. FORCES AND MOTION 3. FORCES AND PRESSURE 4. HEAT 5. LIGHT 6. WAVE 7. ELECTRIC 8. ELECTROMAGNETISM. 9. ELECTRONIC STYLE OF LEARNING 10.RADIOACTIVE SYLLABUS MASTERING THE TOPICS AND THE SYLLABUS6/11/2011 hro
  • 11. 6/11/2011 hro
  • 12. QUESTION ELEMENTS• Knowledge• Understanding• Applications of knowledge• Problem solving• Conceptualization• Decision making6/11/2011 hro
  • 13. KNOWLEDGE An ability to recall back or to identify specific matters in the contents of Physics for example facts, concepts, principles, theory and laws.6/11/2011 hro
  • 14. SUMMARY principles Facts concept KNOWLEDGE Theory laws MASTER AND EXPLORE IT THEN YOU`LL UNDERSTAND PHYSICS BETTER6/11/2011 hro
  • 15. 6/11/2011 hro
  • 16. Example of knowledge questions• What is meant by displacement? Path taken /distance in a specific direction.• What is meant by resistance? V = IR, R = V/I• What is meant by speed? Ratio of voltage to the current flows in a conductor//• What is meant by pressure?• What is R =V/I states the meaning of the symbols, meant by momentum?• (a) What does the term isotope mean? I = current, R= resistance, V = voltage,• What is meant by power?6/11/2011 hro
  • 17. 1. Diagram 1 shows a slinky spring being moved left and right (b) On Diagram continuously of the crests of the 1, mark ‘X’ on any one (c) complete the following sentence by underlining the correct wave. [1 mark] phrase in the bracket. The direction of the hand movement is ( the same as/ perpendicular to the direction of the wave movement) x x (a)Complete the sentence below by ticking (x) the correct box. [1 mark] The wave produced by the slinky is a Energy (d) What is transferred by the wave? …………….. Transverse wave x ------- Longitudinal wave ------- [1 mark]Q1 6/11/2011 hro SPM 2008 Q1
  • 18. 2006 - What type of wave is the sound waves? Longitudinal wave [1 mark] - What is meant by magnetic field? A region of magnetic force [1mark ]6/11/2011 hro
  • 19. (b) Draw the position of the second glass prism at A(c) completethe ray pathin the instrument above (a) Name the optical instrument P? periscope 6/11/2011 hro
  • 20. High force/ High energy/Hard surface SPM 2009 Q2 Impulsive force6/11/2011 hro
  • 21. Momentum = mass x velocity = 0.05 kg x 5 m/s = 0.25 kgm/s SPM 2009 Q2 Put sponge / plasticine on the wooden block6/11/2011 hro
  • 22. Reflection SPM 2008 Q2 Virtual // laterally inverted6/11/2011 hro
  • 23. 6/11/2011 hro
  • 24. The action of gravitational force on mass // W = mg , w= weight, m= mass, g = gravitational force 2 Upthrust force // buoyant force6/11/2011 hro
  • 25. Q3 4. Diagram 3.1 and Diagram 3.2 show two photographs of electrical circuits. (a) Which diagram shows a parallel circuit? Diagram 3.2 …………………………………………… [1 mark]6/11/2011 SPM 2008 Q3 hro
  • 26. 5 Diagram 7.1 shows a hydraulic system. A force F is Q7 exerted on the small piston.• (a)(i) Name the principle involved in this hydraulic system.• Pascal’s principle // pascal Rej : wrong spelling ……………………………………….[1 mark]• (ii) Compare the pressure at point P and at point Q.• Same // equal // P = Q // Pp = PQ // no difference …………………………….[1 mark]6/11/2011 Rej : serupa // setara // hro simillar SPM 2008 Q7
  • 27. 7. 7. State the energy change involved when using the heater to heat the water. Electrical energy to heat energy …………………………………………… [1 mark] 6/11/2011 hroHajah Rokiah Hj Othman smktp2010 SPM 2008 Q8
  • 28. (a)Name the light phenomenon involved at Y. [1 mark] Total internal reflection …………………………………………… [1 mark]6/11/2011 SPM 2008 Q11 hro
  • 29. 96/11/2011 hro
  • 30. Number of complete oscillation in one second6/11/2011 hro
  • 31. Region X is deeper than region Y Wave length of region X is longer than region Y The deeper the depth the longer the wave length Refraction6/11/2011 hro
  • 32. Understanding Element• Understanding concept and principle of physics: the ability to interpret, translate, extrapolate and understand concept or principles in physics fields which involve the use of knowledge without new situation and do not require explanation about the implications towards the knowledge6/11/2011 hro
  • 33. 10 Boyle’ law Pressure decreases Pressure is directly proportional to depth 6/11/2011 hro
  • 34. Q311 SPM 2008 Q3(C) (iii) One of the 10 Ω resistors is removed fromthe circuit. What happens to the ammeterreading?Decreases // smaller // reduce // .less // lower // less than 2A [1 mark]6/11/2011 hro
  • 35. Section B 2005 Q 10(e) Figure 6.1 shows the arrangement of the apparatus for an experiment to study a wave phenomenon. (i) Figure 6.2 shows the bright and dark bands of the wave pattern formed on the screen when plane waves pass through narrow and wide gaps. [4 marks] (ii) Observe Figure 6.2. Compare the wave patterns and the wavelengths of the waves before and after they pass through the gaps. Relate the size of the gaps, the wave patterns and the wavelengths to deduce a relevant physics concept. [5 marks ]6/11/2011 hro
  • 36. 12 (a)(i) Explain how the dark and light bands are formed on the screen. [4] (ii) Observe Figure 6.2. Compare the wave patterns and the wavelengths of the waves before and after they pass through the gaps. Relate the size of the gaps, the wave patterns and the wavelengths to deduce a relevant physics concept. [5]6/11/2011 hro
  • 37. 10 (a) (i) 1 (region ) crest /convex shape / convex lens Labelled diagram 1 Light is focussed on the crest produce bright region No need to 1 (region ) trough /concave shape / labelled diagram concave lensC Labelled 1 Light is diverged on the trough diagram produce dark region 6/11/2011 hro
  • 38. Eg. Labeled diagram6/11/2011 hro
  • 39. 13 Understanding • Before a football tournament, the ball to use in the game must have a suitable pressure. Explain why a ball with less pressure is not suitable for the football tournament. [3 marks]6/11/2011 hro
  • 40. Suggested answer • Ball with a suitable pressure have small/ less reaction time • So the impulsive force is greater, (mv – mu) F = t • And the ball can goes further6/11/2011 hro
  • 41. Q 1014 (d) Diagram 10.3 shows two thin copper strips, PQ and RS connected to a circuit 1 - When current flows the magnetic field is formed // Diagram 2 –The flow of current is in the apposite direction // Diagram 3 – The magnetic field between the two plates are in the same direction // Diagram 4 – The two pieces of thin copper repulse against one another // Diagram Explain what happens to PQ and RS, when the switch is on. [4 marks] 6/11/2011 hro
  • 42. Mark given on diagram 1 - When current flows the magnetic field is formed // Diagram 2 –The flow of current is in the apposite direction // Diagram Force Force 3 – The magnetic field between the two plates are in the same direction // Diagram 4 – The two pieces of thin copper repulse against one another // Diagram6/11/2011 hro
  • 43. Knowledge Application criteria Example of key words: • Use knowledge to • Apply explain clearly • Show ,complete, • explain • Solve • Use method, concept, • modify theory in new situation • Relate • Change • Solve problem using • Classified knowledge and • Picturised understanding • Illustrate • Calculate6/11/2011 hro • Sketch /draw
  • 44. 15 imageQ2 6/11/2011 hro SPM 2008 Q2
  • 45. 16 6/11/2011 hro SPM 2008 Q11
  • 46. Calculate the critical angle of diamond and of glass16 [ 2 marks]1- Sin c = 1/ n // sin c glass = // sin c diamond =2- c glass = 41.8 0 (sehingga 41.8103) and c diamond = 24.4 0(sehingga 24.4075) (Remark: Mesti ada kedua2 nilai) In glass: 1- Draw ray from glass refract away from normal In diamond: 2- Draw total internal reflection 3- Draw another 2 total internal 6/11/2011 hro reflection2008 Q11 SPM
  • 47. 17 Diagram 3.3 shows an electrical circuit. Assume that the internal resistance of the battery is negligible. • Calculate the What is the reading of the effective resistance ammeter? of the circuit. [1 mark] 12 Method : 1-show how to calculate the 2A effective resistance in parallel circuit 10 x10 2 – how to get effective resistance in the 10 10 5ohm 6 circuit 1Ω + 5 Ω = 6 Ω [2 marks] 6/11/2011 hro
  • 48. 18 6/11/2011 hro
  • 49. 2 (a) (i) 1 The distance in figure 6.2 is further / vice versa (ii) 1 The work done by the pupil in figure 6.2 is higher / vice versa (iii) 1 W = 20 x 0.5 1 = 10 Nm // J (b) (i) 1 As the energy increases the distance of projection increases / vice versa (ii) 1 The energy conservation principle (c) (i) 1 The time is the same (ii) 1 The falling height is the same / the mass 6/11/2011 does not influence the time of fall hro
  • 50. CONCEPTUALISATION ELEMENT • The ability to reason by identifying and analysing common characteristics or variables involve, and synthesis the common characteristic or relation with variables to create a physics concept..6/11/2011 hro
  • 51. CONCEPTUALISATION ELEMENT CRITERIA • - list common characteristics correctly • - classify or explain common characteristic or variables correctly • - relate characteristic and variables to create concept correctly with identical justification.6/11/2011 hro
  • 52. Observe Figure 6.2. Compare the wave patterns and the wavelengths of the waves before and after they pass through the gaps. Relate the size of the gaps, the wave patterns and the wavelengths to deduce a relevant physics concept. [5]6/11/2011 hro
  • 53. 10 (a) (ii) 1 Wave length does not change /same / constant (before and after the waves....) 2 Before passing (front ) is a plain wave /straight 3 (front ) wave (in both situations) curved / dispersed after passing the gaps 4 Wide gap less curve and when passing through a narrow gap the wave is spherical / round / 5 The smaller the gap the more6/11/2011 curvehro wave // vice versa the
  • 54. Problem solving • The ability of using knowledge , scientific skills and thinking skills to solve physics problem by • Scientific and non scientific investigation • Qualitatively and • Quantitatively with systematic6/11/2011 and well planned hro
  • 55. ELEMENT : PROBLEM SOLVING IN A QUALITATIVE WAYThe ability to solve qualitativeproblems in a systematic andorganized mannerPaper 2 Section A No.7 Section B No. 9 (c), No. 10 (c) 6/11/2011 hro
  • 56. Example 1You are given two pieces of plane mirror measuring 5 cm x 6 cm to make a periscope.(i) Using these mirrors and other materials, describe how you would make a periscope. (4 marks)1. Material to make the box – cardboard/manila card/plywood2. Holes for light to enter and leave the periscope3. Correct positions of mirrors – facing the holes4. Placing mirrors at angle of 45 6/11/2011 hro
  • 57. Problem solving 6/11/2011 hro
  • 58. Problem solving Small incubator Incubator for 200 eggs 6/11/2011 hro
  • 59. DECISION MAKING ELEMENT • The ability to choose best solving alternative for a problem referring to certain criteria to achieve the objective. • The aspects of identifying, analysing and evaluating all problem solving alternatives to choose suitable alternative with the objective for making decision and state decision justification that have been taken.6/11/2011 hro
  • 60. ELEMENT : MAKING DECISIONSThe ability to identify objectives, analyse andassess all alternatives to solving a problem,choosing the most suitable alternative andjustifying the choice madePaper 2 Section A No. 8 Section C No. 11, No.12 6/11/2011 hro
  • 61. Push or Pull ?6/11/2011 hro
  • 62. Paper 2 Section A Example 1 Figure 1.1 Figure 1.2(a)On Figure 1.1 and Figure 1.2, indicate and label : (i) the direction of force F exerted by the gardener on the handle of each wheelbarrow to make it move ; (ii) the direction of the vertical component FY of the force in (a) (i).(b)(i) Based on the answers in (a) (i) and (a) (ii), which of the way is more suitable on a muddy road? 6/11/2011 hro (ii) Explain the reason for your answer in (b) (i).
  • 63. Example 1 Answers Fy F F Fy (b) (i) The way used in Figure 1.2 (pulling) is more suitable to be used on a muddy road. (ii) When the wheelbarrow is pulled, the force component FY acts upwards. The resultant force (W – F Y) downwards is smaller. 6/11/2011 hro
  • 64. Example 2 Encik Ahmad will be taking part in a four-wheel drive expedition to Taman Negara. In the expedition, he will have to drive through a hilly and unpaved area, and to cross streams. like to try the decision making Would you question? Table 1 shows the characteristic of vehicles that can be used in the expedition characteristic Mass/Kg Engine CapacityTypes of Diameter of You are asked to investigate/ the engine characteristics tyres/mm vehicles (cc) cm3 of the four wheel drive that can be used in Diesel 800 P 3000 2000 the expedition. Based on the table as shown in Table 1; Q Petrol 400 1000 1500 (I) Explain the suitability of each characteristics of the vehicles 2000 table above R in the 2500 Diesel 600 (ii) Determine the most suitable vehicle to participate in the expedition. S 1800 2000 petrol 500 T 1500 2500 [petrol 500] 10 marks 6/11/2011 hro
  • 65. Study the given characteristics characteristic Mass/Kg Engine Capacity Types of Diameter engine of vehicles (cc) / cm3 tyres/mm P 3000 2000 Diesel 800 Q 1000 1500 Petrol 400 R 2000 2500 Diesel 600 S 1800 2000 petrol 500 T 1500 2500 petrol 5006/11/2011 hro
  • 66. Section C (Decision Making) NOTE: • DON’T WRITE THE CRITERIA FOR ALL THE CHOICE GIVEN IN THE QUESTION • DON’T STATE VALUE • DON’T COMPARE BETWEEN THE CRITERIA6/11/2011 hro
  • 67. Section C (Decision Making) NOTE: • DO WRITE EACH CRITERIA FOR THE CHOSEN SUBJECT • DO STATE THE CHARACTERISTIC AS HIGH / LOW /LARGE /SMALL • DO THE JUSTIFICATION BY REPEATING ALL THE CHARACTERICS OF THE CHOSEN SUBJECT.6/11/2011 hro
  • 68. You may answer in table form Characteristics Reason Large Mass more stable across the stream High Engine Capacity More powerful on hilly and unpaved road Types of engine-Diesel Cheaper and economic Diameter of tyres Large Increases surface area produce less pressure Choose R Large mass, High Engine Capacity , use diesel and has large diameter of tyres6/11/2011 hro
  • 69. A new harbour is to be built at a new location. The suggestednew location is either at a bay or a cape. Four models for thestructure of the retaining wall are given. Table 12 shows thelocation and the characteristics of the four retaining wall Explain the best location and the suitability of each characteristic in Table 12. Determine the most suitable retaining wall to be used. Give reasons for your choice. [ 10 marks ] 6/11/2011 hro SPM 2008 Q12
  • 70. Study the given characteristics6/11/2011 hro SPM 2008 Q12
  • 71. You may answer in table form Characteristics Reason Bay Location ………….. calmer // waves energy smaller Structure of retaining wall speed decrease // Sloping wavelength decrease Surface of retaining wall absorb energy // Uneven surface ……………………… reduce energy Height of retaining wall protect from high wave // …………………….. High retaining wall prevent water from overflowing Choose W because at bay, sloping, uneven surface and6/11/2011 high retaing wall hro
  • 72. 6/11/2011 hro
  • 73. PHYSICS 2 • PAPER 2 , CODE 4531/2 • Questions consists of three sections • SECTION A –STRUCTURED QUESTION: 8 COMPULSORY QUESTIONS • SECTION B – ESSAY QUESTION : 2 QUESTION (CHOOSE ONE) • SECTION C – ESSAY QUESTION : 2 QUESTION (CHOOSE ONE)6/11/2011 hro
  • 74. PAPER 2 (4531/2)• Type of Instrument : Subjective Test• Type of Item : Subjective Items• Number of Questions : Section A : 8 structured questions (Answer all) Section B : 2 (Choose one) Section C : 2 (Choose one)• Total Marks : 100• Duration of Test : 2 hr 30 min• Elements Assessed Knowledge, Understanding, Application, Problem Solving (Qualitative, Quantitative), Conceptualization, Making Decisions• Things to Bring : Scientific Calculator 6/11/2011 hro
  • 75. CONCEPTUALISING comparePROBLEM SOLVING modifyDECISION MAKING select 6/11/2011 hro
  • 76. PAPER 3 (4531/3)• Type of Instrument : Written Practical Test• Number of Questions : Section A : 2 (Answer both) Section B : 2 (Choose 1 )• Total marks : 40• Duration of Test : 1 hr 30 minutes• Element assessed : Problem Solving through scientific investigation (experimenting)• Things to bring : Scientific calculator, Protractor, Ruler 30 cm, Compass 6/11/2011 hro
  • 77. PHYSICS 3 6/11/2011 hro
  • 78. PHYSICS 3 Take readings (measure / read scale) Tabulate results Plot a graph State the relationship Graph shown - extrapolate / intrapolate Calculate the gradient Calculate related quantities State precautions Observe the diagrams State an inference State a hypothesis Describe experiment, stating aim, variables, apparatus and materials, set-up, procedure, table of data, analyzing the data 6/11/2011 hro
  • 79. Paper 3 Question 2• You have to draw a graph• Construct V Peka physics• To determine the gradient of the graph Analyzing the Data Graph6/11/2011 hro
  • 80. Smooth graph6/11/2011 hro
  • 81. Don’t join the points of the graph6/11/2011 hro
  • 82. Analyzing the Data Graph State how the data is analyzed to make a conclusion quantity / unit Responding variable Manipulated variable quantity / unit6/11/2011 hro
  • 83. Graph Example Best fit straight lineExtension e / mm Minimum size 8cm X 10 cm 0 Force F / N Uniform scale ( not odd) 6/11/2011 hro
  • 84. Graph Best Fit Straight Line Example 1 Title Graph of distance against time Distance/m Approximately equal number of points on both sides of the line6/11/2011 Time/s hro
  • 85. Graph : Best Fit Straight Line Example 2 Correct graph Not the best fit line6/11/2011 hro
  • 86. Graph Extrapolating a graphExtrapolation is producing a straight line graph in order toestimate a value beyond the range of experimental valuesExample 1 Extrapolating the graph to intercept the 6/11/2011 axis hro
  • 87. Extrapolation Example 26/11/2011 hro
  • 88. Extrapolation Example 2 E.m.f. = 1.5 V6/11/2011 hro
  • 89. Gradient of the graph The gradient of the graph is? -Sufficiently large triangle - 8 cm X 8 cm - State value of the gradient with correct unit.6/11/2011 hro
  • 90. Graph Determining the gradient of a graph Gradient of a graph = Δy Δx Draw a big right-angled triangle on the graph paper 8 cm x 8 cm Show working Gradient = 16 m s-1 20 s Answer = 0.8 m s-2 plus unit6/11/2011 hro
  • 91. Making a Conclusion Example1. The extension is directly proportional to the force2. The period of oscillation of a pendulum is directly proportional to the square root of its length3. The mass is inversely proportional to the period of an inertial balance4. Linearly increase5. Linearly decrease 6/11/2011 hro
  • 92. Graph conclusions Linearly Linearly decrease increase Directly Inversely propotional propotional6/11/2011 hro
  • 93. State the precautions should be taken• The circuit connections must be tight• Off the switch after taking the reading of the meters.• Make sure the amplitude of oscillation is small.• Eye must be perpendicular to the scale taken• Ensure that the object, lens and screen are placed vertically6/11/2011 hro
  • 94. Let’s explore physics 2 SECTION A : structured questions Question 1 – knowledge& understanding Question 2, 3 & 4 – knowledge, understanding, application Question 5 & 6– knowledge , understanding , conceptualisation Question 7– knowledge , understanding , application,problem solving Question 8– knowledge, application,decision making6/11/2011 hro
  • 95. 6/11/2011 hro
  • 96. 6/11/2011 hro
  • 97. BERUSAHA DAN BERTAQWA AGAR CEMERLANG DUNIA DAN AKHIRAT. HAJAH ROKIAH HAJI OTHMAN,smsc,physics,Julai096/11/2011 hro