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Physics Practicals NECO GCE 2015 Free Expo Answers Here!!!






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1 b (i)
M / m = 2 (25 tan)/ N
M = 2 m (25 tan/ N ) compare with y = mx )
slope (s ) = 2 m = 207 . 27 = 2 m
m = 207 . 27 / 2 , = m = 103 .64 g

1v)
Tabulate READINGS

SN| &(o) | N(cm) | Tan& | b = 25tan& | b/n(cm^-1) | M(g)

1 |25.000|27.200|0.4660|11.650|0.4283|70.000

2 |30.000|28.700|0.5774|14.435|0.5030|90.000

3 |35.000|30.100|0.7002|17.505|0.5816|110.000

4 |40.000|31.000|0.8391|20.978|0.6767|130.000

5 |50.000|36.600|1.1918|29.795|0.8141|150.000

-SLOPE
slope(s) = Angle M/Angle(b/N) = M2 - M1/(b/N) - (b/N)1
Slope(s) = 134 - 20/0.7 - 0.15
= 114/0.55
slope(s) = 207.27gcm^-1


No 1A (viii)
- Ensured parallax error is avoided when using the protector and meter rule
- i will avoid drought


(2a)
Draw a table:
S/N: 1,2,3,4,5,6

t1(s): 5.00, 10.00,15.00,20.00,25.00,30.00

tita i degree(raw): 0.50,5.00,10.00,12.60,15.00,17.50

tita i(low): 0.50,5.00,10.00,12.60,15.00,17.50

tita = tita1-tita0: 0.50,5.00,10.00,12.60,15.00,17.50


PLS NOTE THAT tita should be written in the correct format. It looks like a zero and degree looks like small zero.


(2vii)
-I avoided error due to parrallax
-I ensure that the stop watch was not faulty.




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