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1a)
Lo=125.00cm^3
Diameter of measuring cylinder=3.21cm^3
S/N:1,2,3,4,5
m(g):50.0,100.0,150.0,200.0,250.0
Lo(cm^3):125.0,125.0,125.0,125.0,125.0
L(cm? 3):135.0,145.0,165.0,185.0,205.0
y=L-Lo(cm^3):10.0,20.0,40.0,60.0,80.0
V=0.785d^2y:80.89,161.77,323.55,485.32,647.10
1aviii)
Slope=(250.0-150.0)/(647.10-323.55)
=100.0/323.55
=0.309
1aix)
-I ensured that parallax error is avoided
-I ensured that mass is gently inserted into the cylinder to avoid spillage
1b)
Archimede's principle stste that when a body is partially or wholly immersed into a fluid it experiences an upthrust which is equal to weight of the body
1bii)
volume of the wood = 2.0 × 10^-5m^3
mass = 5.0 × 10^-3kg
g = 10.0ms^-2
density of water = 1.0 × 10^3kgm^-3
volume of object = mass/density
density = mass/volume
density of the object = mass of the object/volume
= 5.0×10^-3/2.0×10^-5
= 2.5×10^2kgm^3
upthrust = volume 0f the object × density of liquid × g
=2.0×10^-5 × 1.5×10^2×10
= 0.3N
3)
TABULATE READINGS
R (N ) - |2 . 00| |4 . 00| |6. 00| |8. 00| |10 . 00|
1(A ) - |2 . 85| |2 . 21 | |2. 00| |1. 75 | |1. 65|
R ^ - 1 - |1. 05 | |0 . 25 |
i)i ensure zero error in the terminal used
ii) i ensure clean terminals
iii)i ensure all wires are tightened together
3b) Ohm's law states that current flow through a conductivity wire is directly proportional to its potential difference applied across its end provided that temperature remain constant
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