2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS

2018 WAEC RUNZ PHYSICS PRACTICAL  QUESTIONS AND ANSWERS

 

Wednesday 4rd APRIL, 2018

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(1a)
TABULATE:
S/N: 1, 2 , 3, 4, 5
L(cm): 90.00, 80.00, 70.00, 60.00, 50.00
T(s): 38.00, 36.00, 34.00, 31.00, 28.00
T = t/20(sqt): 1.90, 1.80, 1.70, 1.55, 1.40
√L(cm^1/2): 9.49, 8.94, 8.37, 7.73, 7.07

(1aix)
Slope(s) = Δvertical/Δhorizontal
=1.90 – 1.55/9.49 – 7.75
= 0.35/1.74
S = 0.201

(1ax)
g = 4π²/S²
= 4 ×(3.142)²/(0.201)²
= 977.4cm/s²

(1axi)
(i) I ensured the angle of oscillation is relatively small.
(ii) I ensured that no external force is added to the system of oscillation.
(iii) I ensured the oscillation is perfect

 

NO 1 GRAPH

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(3a)
TABULATE
S/N:1,2,3,4,5
d(cm):25.00,35.00,50.00,65.00,80.00
I(A):0.80,0.75,0.65,0.60
I^-1(A^-1):1.2500,1.3333,1.4286,1.5385,1.6667

(3aviii)
Slope=Change in logI^-1/Change in d(cm)
(Y2-Y1)/(X2-X1)=(0.23-0.06)/(80.0-13.0)
=0.17/67=0.0025
S=0.0025

(3aix)
-I ensure tight connections
-I avoided zero error of the ammeter

(3bii)
-Length of the wire
-temperature
-cross sectional area
-Nature of the material

 

NO3 GRAPH

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2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS
2018 WAEC RUNZ PHYSICS PRACTICAL QUESTIONS AND ANSWERS