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PHYSICS PRACTICAL

No1 graph)

Tabulate

reading- 1,2,3,4,5

masses(m)- 50,53,55,58,60
depth(d)-5.50,5.80.6.00,6.30,6.60
ti(s)- 6.45,6.80,6.85,7.40,7.45
T=t/n(s)- 0.655,0.680,0.685,0.740,0.758
T^2(s^2)- 0.429,0.462,0.469,0.548,0.575
Li(g/cm)- 5.455,5.776,5.833,6.032,6.154
Mli(g)-30.0,33.5,35.0,38.0,40.0
1aix)
i)I avoided parallax error in reading clock/weight balance
ii)I ensue repeated readings are taken to avoid random error
1bi)
i)weight
ii)upthrust
iii)viscous force/drag or liquid friction
1bii)
The amplitude of oscillation of the loaded test tube decreases with time because of the viscous drag(force) which opposes the motion.

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No3 graph)

3)Table W1
s/n-1,2,3,4,5,6
xn(cm)/d1=0.009m- 3.06,3.50,3.70,4.30,4.50,4.80
xm(cm)converted/- 15.30,16.50,18.50,21.50,22.50,24.40
xm(cm)converted d2=0.005m- 84.70,83.50,81.50,78.50,77.50,75.60
Ri(n)- 11.07,10.12,8.81,7.30,6.89,620
Tabulate W2
s/n-1,2,3,4,5,6
xmi(cm)- 1.40,1.65,1.80,2.20,2.55,2.94
converted/xmi(cm)7.00,8.25,9.00,11.00,12.75,14.70
xni(cm)- 93.00,91.75,91.00,89.00,87.25,85.3
R2i(n)- 26.57,22.24,20.22,16.18,13.69,11.61
slope
dy/dx=26.57-13.69/11.07-6.89
=12.88/4.18
=3.08
3ix)
k=d2/d1*squareroot5
=0.005/0.009*squareroot13.08
=0.56*1.75
=0.98
3x)
i)i would ensure that the terminal are well tightened to avoid partial contact
ii)i would obey the conect connection of positive to positive to negetive to negetive when connecting to circuit
3bi)
when temperature increases the molecules tends to vibrate more intense there by opposing the flow of current
3bii)
P=I^R
P=V^2/R
power=1000W
Voltage=200V
R=?
1000=200^2/R
R=40000/1000
R=40

Completed

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