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In this post are researched regularly repeated NECO 2018 Physics Essay And Objective Questions & Answers . Get them in your finger tips and you are sure of a high grade in this exams NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers.
NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers
WHAT NECO STANDS FOR
The National Examinations Council – NECO is a Nigerian Government owned examination body that conducts the Senior Secondary Certificate Examination and the General Certificate in Education in June/July and December/January respectively. These are entry qualification examinations for higher education institutions in Nigeria.
NECO was created in April 1999 with a mandate to take over the responsibilities of the National Board of Education Measurement (NBEM).
Therefore, NECO conducts Senior Secondary Certificate Examination (internal and external), Junior Secondary Certificate Examination (JSCE) for Federal Unity College and other Federal secondary schools and Private secondary schools, and National Common Entrance Examination for primary 6 pupils interested in admission into Federal Unity Colleges.
The Senior Secondary Certificate Examinations (internal and external) are entry qualification examinations for higher education institutions in Nigeria.
NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers
NECO RESULTS & HIGHER SCHOOL ADMISSION
As you know, no University, Polytechnic, or college of education in Nigeria would admit you into any of their courses without a good grade in any of these examinations. That is why over three million candidates register and take these subject exams annually.
Consequently, in NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers, our goal is to help you achieve this your life dream. Listed here are Physics, questions and answers relevant to 2018 June/July Physics Subject examination.
NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers
RESEARCHED AND VERIFIED NECO REGULARLY REPEATED QUESTIONS & ANSWERS
Foloow our requence plase.
PHYSICS OBJ:
1CEABCBAABB
11DCCBCBCCAE
21BECDDBEDDE
31DBAEADBABA
41CBDCBBBDCB
51CEDDCBAEAA
PART I – ANSWER 6
1ai)
i)propellant
ii)nozzle
1aii)
i)used for communication
ii)used for access geographically dispersed terrains and uneven topography that characterise the nations landscappe
1b)
Given: Object distance for eyepiece, U=3.0cm
Final image distance, V=?
Focal length of eyepiece, F=5.0cm
using the mirror/lens formular
1/f=1/u+1/v
1/5=1/3+1/v
multiplying through with 15v(1.cm)
3v=5v+15
3v-5v=15
-2v=-15/2
V=7.5cm
the final image is virtual and 7.5cm from the eyepiece on the same side of the eyepiece as the object
2)
Given Radius, r=25m
linear velocity, v=20m|s
centripetal acceleration,a=?
Using:
a=V^2/r2
a=20^2/25
a=16m|s^2
6a)
A wave front is the locus of points characterized by propagation of position of the same phase: a propagation of a line in 1D, a curve in 2D or a surface for a wave in 3D. In other words a line or surface in the path of an advancing wave on which all the particles are vibrating in phase is called a wave front.
6b)
i)plane wave front
ii)spherical wave front
7)
Pupil- Regulates the amount of light entering the eye
Shutter-admits or shuts off light from the film of the camera
Screen-used to focus light from a near object in front of the pinhold camere
9a)
i)over charging (for secondary cell)
ii)self discharge (for primary cell)
9b)
self discharge- a primary cell lose a considerable percentage of their charge when stored at room temperature, this is due to non-current-producing “side” chemical reactions that occur within the cell even when no load is applied
10)
i)fusion is more easily achieved with lightest elements such as hydrogen
ii)the raw materials required for fussion are more cheaply and readily available
iii)fusion process produce less dangerous by product
NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers
PART II – ANSWER 4
12ai)
Newton’s second law of motion states that the rate of change of momentum is proportional to the impressed fotvr and takes place in the direction of the force
12aii)
i)a swinging pendulum
ii)The motion of the balance wheel of a watch
12bi)
Resultant force is that single force which acting alone will have the same effect in magnitude and direction as two or more forces acting together
12bii)
Equilbrum force is that single force which will balance all the other forces taken together. It is equal in magnitude buy opposite in direction to the resultant force
12ci)
Resultant,Force,F=sqr4^2+3^2
F=sqr16+9
Fsqr25=5N
12cii)
using F=m(v-u)/t
5=5.5(v-2)/(5*60)
5*60*5=5.5(v-2)
=5.5(v-2)=1500
V-2=272.7
V=272.7+2
V=274.7m|s
final velocity of body = 274.7m|s
13ai)
i)Solar energy is for providing a cheap and clean source of hot water supply.
ii)Solar energy provides electricity supply
13aii)
Renewable energy are those that can be replaced as they are used up. They can be continually replenished as they are exploited and utilized while Non-Renewable energy are those that cannot be replenished as they are used up
13b)
The principle of conservation of linear momentum us also utilized in the propulsion of jet aircraft. Gases are burnt within the combustion chambers of the engine. As jets of hot gases are expelled downwards through the tail nozzle at very high speeds from the aircraft, an equal and opposite momentum is given to the rocket or aircraft which then moves
13c)
Given: mass, m=0.2kg
heat lost,it=4200J
intial temperature cost r= 100’C
final temperature cost=?
S. It . c of water, C10=4200J/kg/k
using:
heat lost= M10, C10 (cost-tf)
400=0.2*4200*(100-costf)
=4200/0.2*4200
100-costF=5
100-5=costf
=cost=100-5
costf=95’C
final temperature=95’C
14ai)
A transverse wave is one which travels perpendicularly to the direction of the vibration producing the wave.
14aii)
i)Light Wave do not need a material medium for preparation, but sound wave does
ii)Light wave cannot be plane polarised but sound wave can
14b)
Given Y= 4sin (100×22/7xt/2 + 0.5x)
Comparing with
Y = A sin (2xPIxft + 2pi/pi x) Note : {the PI is the 22/7}
14bi)
2 x 3.142/0.5 = 12.56cm
Hence Wave length is 12.56
14bii)
Also 1000PI/wave length = 2PI F
= 1000PI/12.56 = 500/12.56
= 39.8Hz
14biii)
Speed (v) = F x Wave length
= V = F x Wave Length
V = 500/12.56 x 12.56
= 500cm/s
Conversation to M = 500/100
= 5m/s
15a)
Coulomb’s Law state that the magnitude of the electrostatic force between two point charges is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.
15bi)
diagram
R1
R2
R3
I<-V
15bii)
let equivalent resistance be R
1/R=1/R1+1/R2+1/R3
1/R=R2,R3+R1,R3+R1,R2/R1,R2,R3
R=R1,R2,R3/R1,R2,+R2,R3+R1,R3
15C)
Given; R=20n,C=4HF,F=50H2,TI=3.14
z=sqr R^2+(1/2TiFc)
z=sqr200^2+(1/2*314*50*4*10^-6)
z=sqr200^2+796.178^2
z=sqr40000+633900
z=sqr673900
z=821n
NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers
NECO Physics Questions 2018.
1. (a) A student makes a model of an atom. The model contains 24 electrons, 25 protons and 26 neutrons. Some of these particles are inside a nucleus at the centre of the model.
(i) Determine the nucleon number (mass number) of the atom.
(ii) Explain why the model represents a charged atom.
(iii) The student makes a new model of a different isotope of the same element. Describe the nucleus of this new model.
Ans: 1 (a)
(i) 51 B1
(ii) more protons than electrons or different number of protons and electrons positive and negative do not cancel.
(iii) 25 protons. a different number of neutrons.
2. Fig. 1.1 shows the distance-time graph for two cyclists A and B. They start a 500 m race together but finish the race at different times.
NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers
(a) Use Fig. 1.1 to determine
(i) the distance between A and B at time t = 20s,
(ii) the difference in the time taken by A and B for the race.
(b) Cyclist C starts the race at the same time as A and B and covers the first 200m of the race at a constant speed of 5.0 m/s. He then accelerates and finishes the race at t = 60s.
(i) On Fig. 1.1, draw the distance-time graph for cyclist C.
(ii) Calculate the average speed of cyclist C for the whole race.
Ans: (a) (i) 60 m
(ii) 12s
(b) (i) straight line from origin to 200 m at 40s any line straight or curved from (40,200) to (60,500)
(ii) s = d/t or 500/60 = 8.3m/s
Neco Physics Objective Sample Questions;
If a satellite travels at a constant speed round the earth in a circular orbit,
1. Which of the quantities in the list below are scalars.
(a) acceleration (b) force (c) mass (e) speed.
2. The velocity of the satellite changes, but its speed is constant. State what is meant by velocity…………………….
3. Explain why the velocity changes……………………………
4. Explain what makes this satellite move in an orbit that is circular
READ OTHER NECO 2018 QUESTIONS AND ANSWERS HERE:
The NECO 2018 Financial Accounting Essay & Obj Qts & Ans
NECO 2018 June/July Physics Theory & Objective Questions Are Here/ Get NECO June/July Physics Therory and Obj. Questions & Answers
EXAM SUCCESS TIPS:
In conclusion, I wish to recommend the following study strategies for you. They are exam success tips, which are better than looking for expo here and there. They are strategies that can help you ensure exam success as well as mastery of the subject.
Start by, setting your goals and manage your time well and ensure you attend your teaching/leason classes regularly. Again, Identify your learning style by developing your study plan which will enable you keep up with reading, thereby, surrounding yourself with learning at all time. Develop effective note-taking techniques. Finally, Create mind maps and get ready for the exams.
Good luck
Deacon Anekperechi Nworgu, a seasoned economist who transitioned into a chartered accountant, auditor, tax practitioner, and business consultant, brings with him a wealth of industry expertise spanning over 37 years.
