Tuesday 25th June
5033/5032 Paper III & II: Objective & Essay Commerce 2hrs 40mins 10:00am 12:40pm
This is actually the 2019 NECO PHYSICS ANSWERSAnswers as questions sent to our subscribers on WHATSAPP, if you are looking for 2020 WAEC/NECO Answers midnight before the exam, try contacting us.
PHYSICS THEORY ANSWERS
Answer SIX Questions From This Part (No 1 and any other FIVE)
(Pick Any TWO)
(i) Solar Electric Power Generation
(ii) Solar Cooking
(iii) Solar Thermal Power Production
Natural sattelite is a celestial body in space that orbits a larger body, such as Moon Which moves around the Earth.
Artificial satellite is a machine of human creation that is sent to the space or the orbit of the Earth for the collection of data, communication and other ends
The applicable relationship is Ns/Np = Vs/Vp meaning the ratio of secondary voltage to primary voltage is equal to the ratio of secondary turns to primary turns
Ns = 200turns , Vs = 300V , Np = ? , Vp= 60V
Np= 200 Ã— (60/300)
Np = 200 Ã— 0.2
Np= 40 turns
Force is an agent that changes or tends to change the state of rest or of uniform motion in a straight line of a body
Contact force is a force which is in contact with the body to which they are applied while Field force is a force whose sources do not require contact with the body to which the are applied
Maximum range (R) is defined as when the angle of the projection (Î¦) is equal to 45° ie R = U²sin90/g and Î¦=45°
R= U²sin90/g and sin90=1
(i) Stable Equilibrium - A cone resting on its base
(ii) Unstable Equilibrium - A cone resting on its apex or vertex
It means that the glycerine which is in solid state will require a heat of 13°c to change to liquid state
(i) The S.I unit of mass is in kilogram (kg) while that of weight is in Newton (N)
(ii) Mass is the quantity of matter in a body while weight is the earth's pull on a body
(iii) Mass is a scaler quantity while weight is a vector quantity
The lower fixed point is determined by placing the thermometer upright in pure melting ice contained in a glass funnel as shown below:
PLEASE DRAW THE DIAGRAM HERE, THEN CONTINUE BELOW.
When the mercury level remains steady, a mark is made on the stem of the thermomenter at this level which represents the lower fixed point
Constructive interference is formed when the wave amplitudes reinforce each other, building a wave of even greater amplitude. Destructive interference is formed when the wave amplitudes oppose each other, resulting in waves of reduced amplitude.
Faraday's law states that the induced e.m.f. in a conducting circuit is directly proportional to the rate of change of magnetic flux linkage, Î¦, with the circuit.
(i) Induction motors
(ii) Electric generators
Electric field acts on charges (Q) while Gravitational field acts on masses (m)
_(Pick Only ONE)_
(i) It is used in generating heat energy required to generate electricity
(ii) It can be operated non-stop with the same nuclear capacity
(Pick Only TWO)
(i) The plant set up is capital intensive
(ii) Principal raw material (uranuim) is not easily available.
(iii) Careless exposure to raw material affects the cell tissues due to radiation effect.
Answer Any FOUR Questions From This Part
Centripetal force and centrifugal force
Archimede's principle states that when a body is totally or partially immersed in a fluid, it experience an upthrust which is equal to the weight of the fluid displaced.
eo = 4Ã—10â´ kg/m³
Mo = 0.4kg
Vo = ?
eL = 1.2Ã—10² kg/m³
eo = Density of object
Mo = mass of object
Vo = volume of object
eo = Mo/Vo
Vo = Mo/eo = 0.4/4Ã—10â´
Vo = 0.00001m³
Mo in the liquid = eL Ã— Vo
= 1.2Ã—10² Ã— Vo Ã— 3/4
= (1.2Ã—10² Ã— 0.00001Ã—3)/4
= 9Ã—10-â´ kg
Reading of the spring = 9Ã—10-â´ Ã—10 = 9Ã—10-³ N
Examples of Renewable energy are :
(i) solar energy
(ii) Wind energy
Radius of the wheel = B
Radius of the axle = O
V. R= Distance moved by effort/ Distance moved by load
Effort moves through a distance is equal to the circumference of the wheel 2Ï€B and at the same time interval the load moves through the axle 2Ï€D
It breaks because ice is less dense than water and water expands when it is frozen
Evaporation takes place at all temperature while boiling takes place at a particular temperature (100°c)
u1 = 16.7m/s
V2 = 0.5m/s
m2 = 200kg
m1u1 + m2V2 = (m1+m2)V
200Ã—16.7 + 200Ã—0.5 = (200+200)V
V = 3340+100/400 = 3440/400
A wave is a disturbance which travels through a medium transferring energy from one point to another without causing any permanent displacement of the medium
(i) It is an electromagnetic wave
(ii) It can be polarized
(i) It is a mechanical wave
(ii) It can can not be polarized
Long sight ( hypermetropia ) can be corrected with converging lens
At resonance L+c= Î»/4
Where C is the end correction. Assuming the end correction C is negligible,then
4 Ã— 18.8 = Î»
First position L1=Î»
Second position L2 =Î»
Hence, L2-L1 = Î»/4
V= fÎ» or f=V/Î»
V = 2f(L2-L1)
V= 2Ã—440( 0.5733 - 0.188)
Overtime = 5Î»/4
= 0.94m or 94cm
Electric field intensity is the measure of intensity or strength of electrical force per unit charge at any given point in the electric field. It is denoted by the letter E and its Unit is Newton per Coulomb (N/C). Where
F is force (N)
Q is Change (C)
A lead accumulator in charged by passing direct current (d.c) through it in the opposite direction to that which its supplies. The positive terminal of the d.c is connected to the positive terminal of the lead accumulator and the negative terminal of the d.c is connected to the negative terminal of the accumulator.
Electrolyte in battery os a solution of SOâ´ and H²O and over time can be lost by slight spills and evaporation and using distilled water it is free from additional minerals that can be find in tap water and these minerals can significantly decrease in life of batteries
Faraday's law of electrolysis states that the chemical deposition due to the flow of current through an electrolyte is directly proportional to the quantity of electricity (coulombs) passed through it. i.e. mass of chemical deposition.
Area = 50cm² => 5*10-³ M²
I = 7A
t = 45*60(s)
T = thickness
M = z i t
m = 3.3 *10^-7 *7845*60
=>6.237 * 10-³ kg
8.9 * 10³kg/m³ = 6.237 * 10-³/V
V = 6.237 * 10-³/8.9 * 10³
=> 7.008*10 -> m³
Thickness = volume/area
Binding energy is the minimum energy or work required to separate the nucleons of an atom
(i)it is used in medicine as a radiotherapy
(ii)it is used in industry to study the defects in metals and welded joints
The intensity of x- ray can be increased in x- ray tube by increasing the voltage which results to an increase intensity of an electron
(i) Both are electromagnetic waves
(ii) Both are high energy photography
2.25*10^-19 = 6.6 *10^-34fo
fo= 2.25*10 ^-19/6.6*10^-34
= 2.25/6.6 *10^-19 +34
Max energy liberated = E=hc/Î» - W
= (6.6Ã—10^-34 Ã— 3Ã—10^8/3.0Ã—10^-7) - 2.28Ã—10^-19
(6.6Ã—10^-19) - (2.25Ã—10^-19)
= 4.35Ã—10^-19 J
The WAEC examination is open to both private and school candidates. ... Most universities in Germany accepts WAEC results from West African students. So, you need to meet their minimum requirements before you're offered admission into a German university.
Nigerian students wishing to study abroad with WAEC, NECO or GCE can apply for admission at Brandon University. As a Nigerian or Internationa student seeking admission to study abroad at Brandon University with WAEC can use the link below to apply.
The most effective practice is to work a short time on each class every day. The total amount of time spent studying will be the same (or less) than one or two marathon library sessions, but you will learn the information more deeply and retain much more for the long term?which will help get you an A on the final.
?WAEC*ExamNo*PIN*ExamYear to 32327?.
The best study spot is one that is quiet, well-lit, and in a low-traffic area. Make sure there is a clear workspace to study and write on. For every 30 minutes, you study, take a short 10-15 minute break to recharge. Make studying less overwhelming by condensing notes from class.
Currently, public universities don't accept D7 for core subjects in admission purposes.
To register for NECO examination, candidates are to obtain a draft and pay a non-refundable fee of Twelve Thousand Naira Only (N12,000) paid via bank draft or to school management if internal registration. The payment can be done in any NECO office, banks and Nipost offices nationwide.
It means that you have scored 39% or less on your exam. It is a failure grade. E8 (40-44%) and D7 (45-49%) are passing grades. C6 (50-54%), C5 (55-59%) and C4 (60-64%) are credit grades. B3 (65-69%) is a Good grade.
WAEC Scratch cards can also be purchased at the National Office of WAEC and at any of its zonal and branch offices across Nigeria. It may also be bought from any of the branch offices of Fountain Trust Bank Plc across Nigeria.
Studying is a great way to start a new career. Perhaps you think you're 'too old' to start university, but it's never too late to study. An increasing number of students aged over 25 are opting for university courses because they're unsatisfied with their job or want a new career path.
Passing NECO is not difficult, the problem is that many candidates use the wrong method to prepare for NECO and NECO GCE.
WAEC result is not valid for 10 years ? waec registrar. ... the registrar clearly stated that Waec result is valid for life. Waec result does not expire in as much as the owner is still alive, the result can be used .
Results which met the Ordinary standard (grades 1-6) were recorded as Pass. ... Grades D and E indicated a lower standard of attainment, but were still judged sufficient to be recorded on the certificate. Grade E or below was ungraded and not recorded on the certificate.
Is Wassce equivalent to GCSE? Minimum of three passes at GCE A-level at grade C or above, and five passes at GCSE/IGCSE level at grade C or above, including English and Maths with equivalent qualifications such as African WAECs - 6 passes at grades 1-6, including Maths and English.
A mature student can be as young as 21 but many are in their late 20s/early 30s or older, and may have left school without the necessary A Levels or equivalent.
The SSCE is conducted by two different examination boards: the West African Examination Council (WAEC) and the National Examination Council (NECO). Students have the choice of either writing the two exams WAEC and NECO or just one of them.
WASSCE Nov/Dec, also known as General Certificate Examination (GCE) or WAEC GCE, is a private examination and uniforms are not required but biometric registration is compulsory as in the former.
21 isn't too old to start anything. Seriously though, who is going to be able to tell you are two years older. It's a none issue. It's probably a better time to start uni than an 18 year old in my opinion.
Candidates are required to enter and sit for a minimum of eight (8) and a maximum of nine (9) subjects. (iv) At least one of Physics, Chemistry and Biology. (v) At least one of Literature-in-English, History and Geography.
To cheat on a math test, discreetly use your phone or sneak notes into the room. If you can subtly use your phone during your test, try texting a friend who's good at math to ask them for an answer you're stuck on.
Reasons Why NECO Result is Accepted for Study in Canada. You sure read that correctly, NECO result is accepted for study in Canada if you did't know. And if you already know this, you definitely would have been surprised when you read the caption since NECO is a Nigerian examination.
A1: 1 x 4 = 4 B2: 3 x 3.6 = 10.8 C4: 1 x 2.8 = 2.8 Total points: 4 + 10.8 + 2.8 = 17.6 Now, we divide the UTME by 8 i.e 280 ? 8 = 35 So, the aggregate score will be 17.6 + 35 + Post-UTME score.
Yes, you can use NECO (be it NECO June/July or Nov/Dec) to gain admission into any university of your choice. Generally, all higher institutions accept NECO just like WAEC, GCE and NABTEB. You can as well combine your NECO with another NECO or any other exams type to gain admission.