(No 1) Tabulate: S/N: 1,2,3,4,5,6 M(g): 70.00,90.00,110.00,130.00,150.00,170.00 t(s): 51.00,45.00,40.00,34.50,27.00,24.00 T=t/n: 2.550,2.250,2.000,1.725, T^2(s^2): 6.503,5.063,4.000,2.976,1.823,1.440 (Vi) Slope=change in m/change in t^2=166-66/6.4-0.5 =100/5.9 =16.949 (Vii) I=180g [1(Ix)] -i would avoid conical oscillation during the experiment -i would avoid drought during the experiment (1bi) Vibratory motion (1bii) -balance wheel of watch -vibration of a violin string (1biii) The period of an oscillating pendulum is the ratio of the time taken for a complete oscillation to the number of oscillation I.e T=t/n NOTE: ^ MEANS Raise to power. (No 2) L=17.60cm Tabulate: S/N: 1,2,3,4,5 U(cm): 1.600,3.000,6.200,9.700,12.800 V(cm): 3.400,6.400,9.400,11.000,12.200 U^-1(cm^-1): 0.625,0.333,0.161,0.103,0.078 V^-1(cm^-1): 0.294,0.156,0.106,0.090,0.081 (2ix) slope=change in u^-1/change in V^-1 =0.60-0.03/0.28-0.06 =0.57/0.22 =2.5909 =2.6 Intercept on vertical axis= 0.15cm^-1 (2x)Precautions -I would ensure that a sharp image was formed on the screen -i would avoid parallax error on the metre rule when measuring the image distance and object (2bi) Forcal length (2bii) M=??? F=18cm V=64cm M=v/f=64/18 M=3.56cm (2biii) -camera -telescope (No 3) I= OA V=1.3V Tabulate: S/N: 1,2,3,4,5,6 I (A):0.50,0.90,1.40,2.00,2.50,3.00 V(v): 1.27,1.24,1.20,1.17,1.14,1.12 (3Vi)Slope=change in V/ change in I =1.28-1.12/2.75-0.35 =0.16/2.4 =0.066 =0.07VA^-1 Intercept=1.29v (3Vii)Z=c/v.=1.3/1.3=1 (3X)Precautions: -I would ensure that the connecting wires -I would avoid error due to parallax when reading voltmeter and ammeter. (3bi) -length -cross sectional area -temperature -type of material (3bii) Specific resistance of a piece of wire refers to the amount of opposition the wire will offer to the flow of electric current through it. (3biii) Given data E1=7.5v E2=7.5v E3=7.5v Et=E1=E2=E3=7.5v r=3 ohms R=5 ohms I=??? Et=I(r+R) 7.5=I(3+5) 7.5=8I I=7.5/8 I=0.9375
Posted on: Fri, 01 Nov 2013 10:06:53 +0000
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