SKEMA FIZIK KERTAS 3 PEPERIKSAAN PERCUBAAN SPM 2009 SECTION A Question 1 Mark 1 1 1 Sectio n 1 (a)(i) 1 (ii 1 ) (iii 1 ) (b) &(c) 7 Answer State the manipulated variable correctly weight/ W //pressure, P State the responding variable correctly Volume, V State the constant variable correctly Mass of air // temperature Tabulate the results correctly 1 , shown in the table V 1 2 State the units of W, P, V and correctly. V 1 3 The values of P, V and are consistent V 4& 5 All 5 values of V are correct -give If 3 /4 values are correct give one If < 3 , 0 1 6 & 7 All 5 values of are correct with 3 decimal places- give two V If 3 /4 values are correct give one If < 3 , 0 1 Quantities of W, P, V andW/N 5.0 10.0 15.0 20.0 25.0 30.0 P/Ncm-2 10.5 11.0 11.5 12.0 12.5 13.0 V/cm3 50.0 47.5 45.0 42.5 40.0 37.5 1/V cm-3 0.020 0.021 0.022 0.024 0.025 0.027
Full marks : 7
Draw a complete graph of P againts
1 V give give
Tick based on the following aspects;. 1 1 P on the y axis and on the x axis V 2 3 State the units of the variables each axis Both axes are marked with uiniform scale And not odd scale ( 1,2, 4,5,10)
All five points are plotted corectly (+/- 1 mm/ square box) give ( Only three points plotted correcly , givei ) Best fitted straight line is drawn Beri (berdasarkan keseimbangan bilangan titik di atas dan di bawah garisan i.i sama banyak, /2:1 /3 :2. T . Titik paling jauh dari garisan tidak lebih 0.5 cm)
Show the minimum size of graph at least 5(vertical) x 4(horizontal) square box (2 cm x 2 cm) (Dikira dari asalan hingga titik akhir jika mula dari asalan. Jika tidak mula dari 0 , tengok titik pertama dan terakhir) Beri score : Number of 7 5-6 3-4 2 1 Total marks : 5 marks 1 (d) 1 State the correct relationship between v and m P is directly propotional to 1 // P inversely propotional to V V 1 Tekanan berkadar terus dengan // V Tekanan gas berkadar songsang dengan isipadu gas V Score 5 4 3 2 1
Markah 1 1 1 1 1 1 1 1
Marking scheme Straight line from I = 0.40 A Straight line to Y axis at V = 0.74 0.72 V (with unit) Increase Increase
Draw a sufficient large triangle (y axis >= 4 petak(2 cm X 2 cm, xaxis >= 4 petak 2 cm X 2 cm) * Correct substitution(follow candidates triangle) * bacaan +- 1 mm (1/2 drp kotak kecil pd graf) * State the value /answer with 0.68 ( V = 0.72V and I =0.68 A) = .0.72 + 0.4 X 0.68 = 0.9921 V ( 2- 4 decimal place) eye position must be perpendicular to scale of ammeter/voltmeter./ The connection must tied/repeat the experiment and find the average
(ii) 1 1 1 (e) total 1 12
SECTION B Question 3
Section 3 (a)
3(c) 3 c (i)
Mark Answer 1 State a suitable inference Immerse distance in the water influenced by weight of the load./volume of water displaced influenced by weight of an object. 1 State relevant hypothesis (with direction) If weight an object increase, the immerse distance/volume of water displaced increase. Describe a complete and suitable experimental framework (10 marks) 1
State the aim of the experiment(M1) To investigate the relationship between weight and the immerse distance/volume of water displaced s .
3c (ii) 1 1 1 3 c(iii) 1 3 c(iv) 1
State the manipulated variable and the responding variable(M2) Manipulated variable : weight Responding variable : immerse distance/volume State the constant variable ( M3) Constant variable : density/surface area. List out the important apparatus and materials (M4) Test tube,lead shot , measuring cylinder/ruler ,water and balance State a functionable arrangement of the apparatus (M5)
State the method of controlling the manipulated variable (M6) Measure the weight of lead shot before put in the test tube. The weigt is 10 g.
3 c(vi) 1 3c(vii) 3c(viii) 1 1 State the method of measuring the responding variable (M7) measure the immerse distance of the test tube/ record the reading /volume of measuring cylinder Reapeat the experiment at least 4 times with different values (M8) repeat the experiment 4 times by add the number of lead shot into the test tube . Tabulate the data (M9) Weight/g 10 20 30 40 50 1 3c(ix) TOTAL 12 State how data will be analysed (sketch graph/statement) (M10) Plot graph immerse distance/volume against weight Immerse distance/cm //volume/cm3
Question 4 Section Mark Answer 4 (a) 1 State a suitable inference Distance between two consecutive fringes influenced by wavelength 4 (b) 1 State relevant hypothesis (with direction) If the wavelength increase, the distance between twoe consecutive fringes increase Describe a complete and suitable experimental framework (10 marks) 1
4(c) 4 c (i)
State the aim of the experiment(M1) To investigate the relationship between wavelength between two consecutive node lines .
and the distance
4c (ii) 1 1 1 4 c(iii) 1 4 c(iv) 1
State the manipulated variable and the responding variable(M2) Manipulated variable : wavelength Responding variable : distance between two consecutive node lines State the constant variable ( M3) Constant variable : Split separation/distance observation line /depth of water. List out the important apparatus and materials (M4) Meter ruler, water, white paper and stroboscope. State a functionable arrangement of the apparatus (M5)
Metal bar water
4 c(v) 4 c(vi)
State the method of controlling the manipulated variable (M6) Measure distance between two wavefront (wavelength) of water before strike metal bar using meter ruler. The distance 0.5 cm State the method of measuring the responding variable (M7) - The waves are freeze by a mechanical stroboscope and sketched on the screen. measure the distance two consecutive node lines Reapeat the experiment at least 4 times with different values (M8) repeat the previous steps by increasing the wavelength to 1.0 cm,1.2 cm 1.4 cm and 1.6 cm . Tabulate the data (M9) Wavelength/cm 0.5 1.0 1.2 1.4 1.6 Distance between two consecutive node lines/cm
State how data will be analysed (sketch graph/statement) (M10) Plot graph distance between two consecutive line against wavelength .