Get free Verified NECO Physics Practical Questions and Answers 2025. NECO June/July Free Physics practical EXPO answers. National Examination Council Physics Practical theory Answers for you to have good NECO result. You will also understand how NECO Practical Physics questions are set and how to answer them. The West African Examinations Council is an examination board saddled with the responsibility of setting, testing and conducting WASSCE in all west African country. The National Examination Council is an examination body in Nigeria that conducts the Senior Secondary Certificate Examination and the General Certificate in Education in June/July and November/December respectively.
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PRACTICAL PHYSICS
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NECO Physics practical 2023
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QUESTION 1
(1a)
Lo = 13.00cm
L | Li/cm | e= L-Lo/cm | ti/s | T =t/n/S | T²/S²
1 | 21.00 | 8.00 | 7.34 | 0.734 | 0.5388
2 | 26.20 | 13.20 | 8.86 | 0.886 | 0.7850
3 | 30.50 | 17.50 | 9.53 | 0.953 | 0.9082
4 | 35.50 | 22.50 | 10.20 | 1.020 | 1.0404
5 | 40.20 | 27.20 | 10.85 | 1.085 | 1.1772
(1axvi)
Slope, S = (∆e/cm)/(∆T²/S²)
S = ([25.00-5.00]cm)/([1.20-0.40]/S²) = (20.00/cm)/(0.8/S²)
Slope, S = 25.00cm/S²
(1axvii)
K = 4π²S = 4×(22/7)²×25 = 4×(484/49)×25
K = 987.76cm/S²
(1axvii)
(i) I will avoid parallax error when taking reading on the metre rule
(ii) I will check zero error of the stop watch
(1bi)
(i) Pendulum Bob
(ii) A loaded tube suspended in a water
(iii) The vibration of the motion of a plucked guitar string
(1bii)
Mean time = 34.80+36+33.75/5 = 104.55/3
Mean time = 34.85s
Mean period= 34.85/15 = 2.323seconds
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QUESTION 2
Solving/Typing……
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QUESTION 3
(3avii)
i | R/Ω | R-¹/Ω-¹ | IA
1 | 1.00 | 1.000 | 0.32
2 | 2.00 | 0.500 | 0.32
3 | 3.00 | 0.333 | 0.28
4 | 4.00 | 0.250 | 0.26
5 | 5.00 | 0.200 | 0.24
(3aix)
Slope, S = (∆I/A)/(∆R-¹/Ω-¹) = ([0.32-0.25]/A)/([1.00-0.160]/Ω-¹)
= (0.7/A)/(0.84/Ω-¹) = 0.083AΩ
Intercept, C = 0.24A
(3ax)
K = S/C = 0.083AΩ/0.24A = 0.35Ω
(3axi)
(i) I ensured tight connections to avoid current fluctuation
(ii) I will ensure that the key is opened when the circuit is not in used to avoid the cell being used up
(3bi)
The end of a cell is greater than it’s terminal voltage because there is some potential drop across the cell due to its small internal resistance
(3bii)
I = E/R+r
I = 1.5/6+0.5 = 1.5/6.5
I = 0.23A
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QUESTION 4
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