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2017 Nabteb Gce Physics Practical Answers Available

Last modified about 2 years ago by . Posted in Gce, Nabteb |

NABTEB-GCE-PHYSICS-PRACT-ANSWER
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1ai)
Tabulate,
L/ca,108.0|89.0|72.0|54.0|56.0,
t/s,40.40|38.20|36.00|33.80|31.60,
T=t/20(s),2.020|1.910|1.800|1.690|1.580,
T^2/s^2,4.080|3.648|3.240|2.856|2.496.
1aiii)
s=DL/DT^2
Intercept I =
1aiv)
a)k1=4pier^2S
b)k2=5/7

1av)
i)I would ensure to avoid wind interference
ii)I would avoid parallax error on the clock
1bi)
Tabulate,
-Period.
Total time taken by the vibrating body to make one complete oscillation.
-Frequently.
Number of complete oscillation period second made by a oscillation.
1bii)
Simple harmonic motion is defined as a partide where acceleration is always directed towards a fixed point and directly proportional to its distance from that point i.e a=w^2y.
1biii)
– shape of the earth
– distance of the object to the earths centre
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3ai)
Tabulate,
V/V,3.00|2.35|1.50|1.10|0.50|0.20.
I/A,
0.10|0.70|1.50|1.90|2.50|2.90.
3aii)
S=AV/AI
Intercept C=
3aiv)
Q=s/c
3av)
i)Key would be quickly removed after each reading to avoid the cell being run down.
ii)I would correct zero errors on ammeter and voltmeter
3ci)
Emf is more than terminal p.d.
V=IR while E=IR+ir. ir is additional
ii)
– transistor
– diode value
– rectifier
iii)-Emf cannot be recharge. Their chemical actions are irreversible and cannot be used for longer time.
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Completed!
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