NECO GCE Physics Practical Questions and Answer – NOV/DEC 2017 Expo Runz.
CLICK HERE FOR NO.1 ANSWERS
1bii)
It’s because an iron ship is not completely solid. It has full of air filled in it. So the average density of the ship as a whole is less than the density of water. Therefore immersed portion of the ship displaces water equal to its weight. So the ship floats whereas a sheet of iron is compact and there are no air spaces inside it. Iron is denser than that of water. The weight of the sheet is greater than the weight of the water displaced by the sheet. So it sinks.
3a)
Readings
1 | R(ohms) | R^-1(ohms)| L(cm) | L(cm)
1 | 1.00 | 1.000 | 13.50 | 0.074
2 | 2.00 | 0.500 | 27.50 | 0.036
3 | 3.00 | 0.333 | 41.50 | 0.024
4 | 4.00 | 0.250 | 55.00 | 0.018
5 | 5.00 | 0.200 | 69.00 | 0.014
note where u see ohms put the ohms sign3av)
Slope=Change in R^-1/Change in L^-1
=(0.500-0.200)/(0.036-0.018)
S=0.30/0.018
=16.67cm/n3avi)
Rs=100/16.67
Rs=5.99880n/cm
Rs=6.0n/cm3)
-I ensured tight connections
-I avoided error due to parallax when reading the voltmetre
-I ensured the key is opened after each reading to prevent the cell from running down
2bi)
I – Rainbow
II – Wave length
2v)
Slope,
s =y2-y1/x2-x1
=56.7-20/4-1
=36.7/3
=12.233
=12.232vi)
U = 100/S = 100/12.23
= 8.176
=8.182vii)
– I will avoid error due to parallax while reading the meter rule.-I will ensure the mass is kept dried before weighing=========================042tvseries.Com send all exam expo answer earlier than others============================NECO GCE Physics Practical , NECO GCE 2017 Physics Practical answer, NECO GCE Physics Practical answer, verified NECO GCE Nov/Dec Physics Practical answer expo answer, 2017 NECO GCE Physics Practical expo, NECO GCE ssce Physics Practical essay theory obj expo, how to get/ where to get neco Physics Practical theory, essay and objective expo answer direct to my phone as text message, trusted NECO GCE ssce Physics Practical questions and answer, i need NECO GCE Ssce nov/dec Physics Practical essay theory objective obj Expo 2017 answers on whatsapp, gidifans Physics Practical answer, solutionclass Physics Practical answer, 042tvseries Physics Practical answer, codedexam NECO GCE Physics Practical answer, wapbaze Physics Practical answer, wapextra Physics Practical expo, Martinlibrary Physics Practical expo, examgists NECO GCE Physics Practical expo, NECO GCE Physics Practical objectives answer, naija NECO GCE Physics Practical expo freeGOODLUCK!!!
CLICK HERE FOR NO.1 ANSWERS
1bii)
It’s because an iron ship is not completely solid. It has full of air filled in it. So the average density of the ship as a whole is less than the density of water. Therefore immersed portion of the ship displaces water equal to its weight. So the ship floats whereas a sheet of iron is compact and there are no air spaces inside it. Iron is denser than that of water. The weight of the sheet is greater than the weight of the water displaced by the sheet. So it sinks.
3a)
Readings
1 | R(ohms) | R^-1(ohms)| L(cm) | L(cm)
1 | 1.00 | 1.000 | 13.50 | 0.074
2 | 2.00 | 0.500 | 27.50 | 0.036
3 | 3.00 | 0.333 | 41.50 | 0.024
4 | 4.00 | 0.250 | 55.00 | 0.018
5 | 5.00 | 0.200 | 69.00 | 0.014
note where u see ohms put the ohms sign
3av)
Slope=Change in R^-1/Change in L^-1
=(0.500-0.200)/(0.036-0.018)
S=0.30/0.018
=16.67cm/n
Slope=Change in R^-1/Change in L^-1
=(0.500-0.200)/(0.036-0.018)
S=0.30/0.018
=16.67cm/n
3avi)
Rs=100/16.67
Rs=5.99880n/cm
Rs=6.0n/cm
Rs=100/16.67
Rs=5.99880n/cm
Rs=6.0n/cm
3)
-I ensured tight connections
-I avoided error due to parallax when reading the voltmetre
-I ensured the key is opened after each reading to prevent the cell from running down
-I ensured tight connections
-I avoided error due to parallax when reading the voltmetre
-I ensured the key is opened after each reading to prevent the cell from running down
2bi)
I – Rainbow
II – Wave length
2v)
Slope,
s =y2-y1/x2-x1
=56.7-20/4-1
=36.7/3
=12.233
=12.23
Slope,
s =y2-y1/x2-x1
=56.7-20/4-1
=36.7/3
=12.233
=12.23
2vi)
U = 100/S = 100/12.23
= 8.176
=8.18
U = 100/S = 100/12.23
= 8.176
=8.18
2vii)
– I will avoid error due to parallax while reading the meter rule.
– I will avoid error due to parallax while reading the meter rule.
-I will ensure the mass is kept dried before weighing
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