NECO Physics Practical Specimens for 2021/2022 Now Available

NECO Physics Practical Specimens
NECO Physics Practical Specimens

NECO Physics Practical Specimens for 2021 June/July Examination (SSCE): National Examination Council of Nigeria [NECO] June/July Internal Senior School Certificate Examination [SSCE] Original/Authentic Official Instructions to Schools Specimens for 2021/2022 Academic Session Now Published [Download in PDF].

This is to inform all candidates who registered for the NECO Examination for 2021/2022 that the Physics examination specimens/instruction Areas of Concentrations are now available.

Welcome to the NECO Physics Practical Specimens for 2021 Areas of Concentration that you cannot escape [Instructions to Schools, Colleges candidates].

From the available NECO Exam Timetable, the examination is scheduled to hold from 5th July and ends on 16th August 2021.

Other information on the NECO Physics Practical Specimens will also be discussed.

Now, you want to know if the NECO Physics Practicals Specimens is Out, right?

If yes, then this information is good for you and will enlighten you on that.

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Also Read: Active NECO WhatsApp Group link for 2021/2022 Session Now Available

NECO Physics PRACTICAL SSCE Internal Examination Specimens

Question 1
  • Retort Stand
  • Split cork
  • Spiral spring
  • Mass hanger weighing 50g
  • Four 20g slotted masses
  • Stop clock or watch
  • One metre rule
Question 2
  • Four optical pins
  • Four thumb pins
  • Plain sheet/drawing paper
  • Plain mirror
  • Mirror holder
  • 30cm ruler
  • Drawing board
Question 3
  • 2 Ω covered and labelled X
  • Resistance box
  • Key/switch
  • Ammeter 0-2 A
  • Accumulator of 2 V or two dry cells each of e.m.f 1.5 V
  • Connecting wires

DOWNLOAD NECO Physics PRACTICAL SPECIMENS

A simple way to Pass NECO Physics 2021 Practical Specimen Examination

As a matter of fact, there are some simple steps you can take in order to pass your exam very easily. These are the tips we shall give below so as to guide you in passing these 2021 NECO Practical questions and provide yourself with correct answers.
  • NECO 2021 syllabus is the very first thing you should think of. If you know the syllabus for Physics Practical Specimen, then you can easily know which area to concentrate on. So I recommend that you should get this NECO Syllabus.
  • NECO Past questions on Physics practical should come into your mind. Having the past question for any subject helps you to know the manner and the likes of questions you should expect from that subject so as to be able to answer them accordingly.
  • After getting all these items, then the next step is for you to sit down and study this subject effectively and all the questions will be very simple for you.
  • Lastly, I will recommend that you should have sound knowledge about practicals because this is what will be required of you, and click here to subscribe for our midnight Legit NECO Expo for only interested candidates only…

HOW TO SUBSCRIBE FOR NECO EXPO ANSWERS 2021/2022.

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Lists of Subjects Available for NECO 2021 Expo

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NECO Practical Physics Questions and Answers

Note: The 2021 NECO Practical Physics answers (expo) will be posted for those who subscribed with us alone, Mr. Funloaded has long ago created NECO VIP WhatsApp Group for interested tutors, Principal’s agents, and Teachers & Candidates. NECO VIP group is where all NECO Questions and Answers are dropped at midnight before the stated exam time on the timetable.

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The reason why we remain the best is that we send the correct NECO answers which have been solved, crosschecked, and verified by our experienced teachers.

Today’s NECO Practical Physics Answers: (2020 Answers)

No (1)

Tabulate.
S/N; 1|2|3|4|5|

M|g; 40.0|35.00|30.00|25.00|20.00|

θ°; 41.80|35.70|30.00|24.60|19.47|

ϕ=(90-θ°); 48.20|54.30|60.00|65.40|70.53|

Cosϕ; 0.6665|0.5835|0.5000|0.4163|0.3333|

(1axi)
Slope , S=Δm|g/ΔCosϕ
=(40-20)g/0.6665-0.3333
S= 20g/0.3332=60.024g

(1axii)
K=s/2 =60.024g/g= 30.012g

(1axiii)
-Precautions-
(i) I avoided error due to parallax when reading from the protector
(ii) I ensured that the force board is firmly and correctly clamped to the retort stand

(1)
Graph

1bi)
(i) They have the same magnitude/size
(ii)They can be obtained/calculated by the same means

(1bii)

(1bii)
T²= 9²+12²
T= √81+144
T= √225
T= 15N

No (3)
Tabulate
S/N; 1|2|3|4|5|

R/Ω; 2.00|4.00|6.00|8.00|10.00|

L/cm; 50.00|66.70|75.00|80.00|83.30|

B/Ω^-¹; 0.500|0.250|0.167|0.125|0.100|

Δ/cm; 1.000|0.499|0.333|0.250|0.200|

(3xiii)
Slope ,S=ΔB/Ω^-¹/ΔΔ/cm =0.5-0.1/1.0-0.2=0.4/0.8=0.5
Slope =0.5Ω^-¹/cm

(3xiv)
K=S^-¹= 1/5=1/0.5Ω^-¹/cm =2Ωcm

(3xv)
-precautions-
(i) I avoided error due to parallax when reading from the potentiometer
(ii) I ensured that the wire are tightly connected.

(3)
Graph

(3bi)
(i) potentiometer give the exact value of potential difference while voltmeter draws apart of the current
(ii) potentiometer can be used for measuring the internal resistance of a cell which cannot be done with a voltmeter

(3bii)
x/R= c/100-c
x/R= 20-0/100-20
x/20= 20/80
x= 20*20/80
x= 400/80
x= 5Ω

———————————————————————————————————————————-

NECO Physics Practical Specimen

PHYSICS PRACTICAL SPECIMEN:

QUESTION 1
-Knife edge
-Meter rule
-100g and 150g masses
-Thread
Question 2
-Four thumb pins
-Four optical pins
-Drawing paper
-Drawing board
-Rectangular glass prism
Question 3
-Plug key
-Connecting wires
-Ammeter (0.2A or 0-3A)
-Voltmeter (0-3V) (gistpower.com)
-2Ω standard resistor covered and labeled Q
-Jockey
-2 × 15V dry Leclanche cell or 2V Accumulator
-1.2 constantan wire (SWG 26)
-Crocodile clip.

The questions below are for practice not the 2020 Physics Practical questions.

1(a)

You are provided with two retort stands, two metre rules, pieces of thread and other necessary apparatus. (i) Set up the apparatus as illustrated above ensuring that the strings are permanently 10cm from either end of the rule.

(ii) Measure and record the length L = 80cm of the two strings.

(iii) Hold ends of the rule and displaces the rule slightly, then release so that it oscillates about a vertical axis through its centre.

(iv) Determine and record the time t for 10 complete oscillations. (v) Determine the period T of oscillations.

(vi) Evaluate log T and log L. (vii) Repeat the procedure for four other values of L = 70cm, 60cm, 50cm, and 40cm.

(viii) Tabulate your readings.

(ix) Plot a graph with log T on the vertical axis and log L on the horizontal axis.

(x) Determine the slope, s and the intercept, e on the vertical axis, of the graph.

(xi) State two precautions taken to ensure accurate results.

(b)(i) Define simple harmonic motion

(ii) Determine the value of L corresponding to t = 12s from the graph in 1 (a).

2(a) You are provided with a beaker, a thermometer, a stirrer, stop watch/clock, measuring cylinder, table salt, water and other necessary materials.

(i). Measure 200cm3 of water into the beaker.

(ii). Heat the water until it boils steadily for about 2 minutes

(iii). Read and record the boiling point bo.

(iv). Add table salt of mass M = 10.0g to the boiling water and stir continuously until another boiling point bi is attained.

(v). Read and Record bi.

(vi). Evaluate θi = (bi – bo )

(vii) Using the same mixture, repeat the procedure four more times by adding 10.0g of salt each times to give the cumulative mass Mi of salt as 20g. 30g. 40g. and 50g.

(viii) in each case, allow the mixture to boil steadily for at least 2 minutes then read and record the boiling point bi.

(ix). Tabulate your readings

(x). Plot a graph with Mion the vertical axis and θi on the horizontal axis.

(xi). Determine the slope, s, of the graph.

(xii). State two precautions taken to ensure accurate results.

(xiii). Define the boiling points of a liquid

(xiv). What effect do impurities have on the boiling point of a liquid?

3(a) You are provided with cells, a potentionmeter, an ammeter, a voltmeter, a bulb, a key, a jockey and other necessary materials.

(i) Measure and record the e.m.f. of the battery

(ii) Set up a circuit as shown in the diagram above.

(iii) Close the key K and use the jockey to make a firm contact at J on the potentiometer wire such that PJ = x = 10cm.

(iv) Take and record the voltmeter reading V and the corresponding ammeter reading I.

(v) Evaluate the log V and log I.

(vi) Repeat the procedure for five values of x = 20cm, 30cm, 40cm, 50cm, and 60cm,

(vii) Tabulate your readings,

(viii) Plot a graph with log I on the vertical axis, and log  V on the horizontal axis.

(ix) Determine the slope s, of the graph.

(x) Determine the intercept c, on the vertical axis.

(xi) State two precautions taken to ensure accurate results.

(b)(i) How is the brightness of the bulb affected as x increases? Give a reason for your answer.

(ii) List two electrical devices whose actions do not obey Ohm’s law.

PHYSICS PRACTICAL ANSWERS

1(a)(iii) Table of reading

S/N L(cm) L(m) T1(s) T2(s) t(mean) T = t/n Log T Log L
1 80 0.8 11.1 11.2 11.15 1.12 0.05 -0.10
2 70 0.7 10.5 10.5 10.50 1.05 0.02 -0.15
3 60 0.6 9.8 9.7 9.75 0.98 -0.01 -0.22
4 50 0.5 8.7 8.7 8.70 0.87 -0.06 -0.30
5 40 0.4 7.7 7.7 7.70 0.77 -0.11 -0.40

(x)

Slope = ΔlogT/ΔlogL = LogT2 – LogT1/LogL2 – LogL1 = 0.098-(0.10)/0.00 – (-0.38)

= 0.098 + 0.10/0.00 + 0.38 = 0.198/0.38 = 0.52

The intercept, C on the vertical axis = 0.99

(I) I ensured strings were tight

(II) I avoided parallax error on metre rule

(III) I ensured smooth and regular oscillation in a horizontal plane.

(b)(i) Simple harmonic motion is the motion of a body whose acceleration is always directed towards, a fixed point and is directly proportional to the displacement from the fixed point.

(ii) T = t/n = 12/10 = 1.2s

;log 1.2 = 0.079

The value of LogL = 0.035 = 0.04

L = 1.1

GRAPH

  1. Table of reading

bo = 98oC

S/N m(g) bi(oC) θi = (bi-bo)
1 10 100 2.0
2 20 102 4.0
3 30 104 6.0
4 40 106 8.0
5 50 108 10.0

(xi) Slope = Δmi/Δθi = mi2 – mi1/θ2 – θ1 = 50-5/10-1.0 =  45/9 = 5

(I) I ensured that the water was stirred gently

(II) I avoided parallax error on the thermometer and stopwatch; (III) I avoided zero error on stop watch.

(b) (i) This is the temperature of a liquid at which is saturated vapour pressure equals the external atmospheric pressure.

(ii) impurities raise the boiling point of a liquid.

GRAPH

  • Table of reading
S/N I(cm) I(A) V(v) Log1 LogV
1 10.0 0.06 0.20 -1.22 -0.70
2 20.0 0.12 0.35 -0.92 -0.50
3 30.0 0.15 0.45 -0.82 -0.35
4 40.0 0.18 0.50 -0.75 -0.30
5 50.0 0.24 0.65 -0.62 -0.19
6 60.0 0.27 0.80 -0.57 -0.09

(ix)

Slope = ΔlogI/ΔlogV = logI2 – logI1/logV2 – logV1 = -0.28 – (-1.22)/0.1 – (-0.7)

= -0.28 + 1.22/0.1 + 0.7 = 0.94/0.8 = 1.175

(x) the intercept on the vertical axis = -04

(xi) (I) I opened tight terminals;

(II) I opened key when reading was not taken

(b)(i) Brightness of the bulb increases

Reason: Voltage across and current through the bulb increases

(ii) (a) Diode; (b) Transistor; (c) Filament bulb (d) Capacitor

GRAPH

If you have any question about the NECO Physics Practical, kindly let us know in the comment box.

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