This is to inform all students preparing for the 2024 NECO SSCE exams and the school administrators that the June/July NECO Physics practical Questions and Answers for 2024 are now available. The exam will commence on Thursday 27th June 2024.
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NECO 2024 Update
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Free 2024 NECO Physics practical Questions and Answers | June/July EXPO:
Paper I Practical – Physics (2 hrs 45 mins) (10:00 am – 12:45 pm)
NOTE: NECO June/July 2024 Free Practical – physics Question and Answer Room: Pay just N1,500! Click on the link below to WhatsApp us and get the answers at 12 midnight. Prepare effectively and ensure your success in the exam with our comprehensive resources.
NECO 2024 PHYSICS PRACTICAL ANSWERS:
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2024 NECO PHYSICS PRACTICAL QUESTIONS
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Sample NECO 2024 Physics Practical Questions and Answers
Question 1: Determination of the Acceleration Due to Gravity Using a Simple Pendulum
Apparatus:
- A simple pendulum (string and bob)
- Stopwatch
- Meter rule
- Retort stand
Procedure:
- Set up the simple pendulum by suspending the bob from a fixed point with the string of length, L.
- Measure the length, L, of the pendulum from the point of suspension to the center of the bob using a meter rule.
- Displace the bob slightly and release it to swing freely.
- Use the stopwatch to measure the time, t, for 20 complete oscillations.
- Record the time and repeat the measurement two more times to get the average time.
- Calculate the period, T, of one oscillation (T = t / 20).
- Repeat the experiment for different lengths, L, of the pendulum (e.g., 40 cm, 50 cm, 60 cm, 70 cm, 80 cm).
Data Table:
| Length (L) | Time for 20 Oscillations (t) | Period (T = t/20) |
|---|---|---|
| 40 cm | … | … |
| 50 cm | … | … |
| 60 cm | … | … |
| 70 cm | … | … |
| 80 cm | … | … |
Calculation:
- Calculate the square of the period, T^2, for each length, L.
- Plot a graph of L (y-axis) against T^2 (x-axis).
Formula: T=2πLgT = 2\pi \sqrt{\frac{L}{g}} T2=(2π)2LgT^2 = \left(2\pi\right)^2 \frac{L}{g} L=g4π2T2L = \frac{g}{4\pi^2} T^2
From the slope of the graph (L/T^2), determine the acceleration due to gravity, g.
Question 2: Verification of Ohm’s Law
Apparatus:
- Resistor
- Ammeter
- Voltmeter
- Power supply
- Rheostat
- Connecting wires
- Switch
Procedure:
- Connect the circuit as shown in the diagram below:(Include a simple circuit diagram showing a resistor, ammeter in series, voltmeter across the resistor, power supply, and rheostat.)
- Close the switch and adjust the rheostat to obtain different readings of current, I, through the resistor.
- For each current reading, record the corresponding voltage, V, across the resistor using the voltmeter.
- Repeat the measurements for at least five different current values.
- Record the data in a table.
Data Table:
| Current (I) | Voltage (V) |
|---|---|
| … | … |
| … | … |
| … | … |
| … | … |
| … | … |
Calculation:
- Plot a graph of V (y-axis) against I (x-axis).
- Determine the slope of the graph, which represents the resistance, R, of the resistor.
Conclusion: Ohm’s Law states that V=IRV = IR, hence the straight-line graph through the origin confirms the law, with the slope equal to the resistance.
Question 3: Determination of the Focal Length of a Converging Lens
Apparatus:
- Converging lens
- Lens holder
- Screen
- Meter rule
- Light source (e.g., candle or lamp)
Procedure:
- Set up the apparatus as shown in the diagram below:(Include a simple setup diagram showing the lens, screen, and light source.)
- Place the lens in the holder and position it at a known distance from the light source.
- Move the screen until a sharp image of the light source is formed on the screen.
- Measure the distance between the lens and the screen; this is the image distance (v).
- Measure the distance between the light source and the lens; this is the object distance (u).
- Record the values of u and v for different positions of the lens.
Data Table:
| Object Distance (u) | Image Distance (v) | 1/u (1/m) | 1/v (1/m) |
|---|---|---|---|
| … | … | … | … |
| … | … | … | … |
| … | … | … | … |
Calculation:
- Use the lens formula: 1f=1u+1v\frac{1}{f} = \frac{1}{u} + \frac{1}{v}.
- Calculate the focal length, f, for each pair of u and v values.
- Find the average focal length of the lens.
Conclusion: The average focal length of the lens is determined using the lens formula and the recorded measurements.
NOTE : These samples should help you understand the type of practical tasks and questions you may encounter in the NECO 2024 Physics Practical exam.