NECO Physics Questions and Answers 2020/2021 Objectives/Essay. Are you ready to score A1 in the 2020 Physics Exams? Access and  Download  likely verified NECO Physics expo now Online,

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PAPER-I (OBJECTIVES)

SEE: NECO TimeTable

1. A car of mass 800kg attains a speed of 25m/s in 20 secs. The power developed in the engine is

• A. 1 . 25 x 104 W
• B. 2 . 50 x 104 W
• C. 1 . 25 x 106W
• D. 2 . 50 x 106 W

ANSWER: B (2 . 50 x 104 W)

2. Apparent cubic expansivity involves the expansion of a liquid in (a) solid state
(b) inexpansible vessel (c) expansible vessel (d) gaseous state

3. If the apparent cubic expansivity of a liquid is 0.00015 x 10 -3 k -1 and the linear
expansivity of the container is 0.00012 x 10 -3 k -1 ; the real expansivity is
(a) 0.00036 x 10 -3 k -1 (b) 1.05 x 10 -3 k -1 (c) 0.00051 x 10 -3 k -1 (d) 0.001 x 10 -3 k -1

4. _______ is not an effect of thermal energy
(a) Radioactivity (b) Expansion (c) Thermonic emission (d) chemical change

5. A lift rated at 0.5Kw output power lifts a 1000N load through a height of 8m.
How long would it take?
(a) 4s (b) 16s (c) 160s (d) 20s (e) 40s

6. Gamma rays are produced when
• A. high velocity electrons are abruptly stopped in metals
• B. energy changes occur within the nucleus of atoms
• C. energy changes occur within the electronic structure of atoms
• D. electrons are deflected in very strong magnetic fields

ANSWER: B (energy changes occur within the nucleus of atoms)

7. What is the speed of a particle of mass 10-27kg whose wavelength is 10-8m.

[h = 6.63 x 10-34Js]
• A. 6.63ms-1
• B. 66.30ms-1
• C. 663.00ms-1
• D. 6630.00ms-1

8. in a series R-L-C circuit at resonance, the voltages across the resistor and the inductor are 30V and 40V respectively, what is the voltage across the capacitor?
• A. 30V
• B. 40V
• C. 50V
• D. 70V

NECO 2020 Physics Essay Questions and answers

1. a) What is meant by the statement: the linear expansivity of copper is
0.000017k -1
b) The linear expansivity of each side of the cube is 10cm. Find (i) The area of
the cube and
(ii) The volume of the cube when its temperature is raised by 30k

2. Define the following
i) Electric current
ii) Potential difference
iii) Electromotive force of a cell
iv) A short circuit
v) Point action

3. Sketch the patterns of the electric lines of force around
i) An isolated positive charge
ii) An isolated negative charge
iii) Two positive charges separated from each other
iv) Two negative charges separated from each other
v) A positive and a negative charge

4. (a) Explain (i) Electrostatic induction
(ii) Point action

(b) With the aid of a diagram, describe a gold leaf electroscope
(c) Explain the principle of lighting conductor
5. (a) Distinguish between an ammeter and a voltmeter
(b) i. What is an equipotential surface
ii. Mention three scalar fields
(c) What are field lines?

6. (a) i. What is an electric circuit?
ii. State three major components of an electric circuit.
(b) Draw the field lines around two parallel current-carrying conductor
showing the direction of the current and the magnetic field around them.

Latest NECO Physics Essay Questions…

RECOMMENDED:

The following has been proving itself very useful in time like this, follow it and and passing the Physics Exam can never be a problem to you.

SET TARGETS AND WORK HARD TO ACTUALISE IT:

You have decided to pass Physics NECO 2020 and I am sure of that. Now, the next thing you should do is set targets.

You have told yourself, “I will score A in Neco Physics 2020”, that’s not all. You need to plan on how to make it happen. Create a timetable and master plan to achieve your goals.

Normally, Neco recommends books for the examination. You are free to use any good Physics textbook to prepare for Neco 2020 exam.

Some textbooks are more difficult to understand. If you have any topic you are finding difficult to understand, then get a textbook that will simplify the topics and make life better for you.

DON’T SKIP PHYSICS EXAMPLES AND EXERCISES:

Many candidates are fond of skipping exercises and even examples while studying textbooks. In fact, “we” loved notebooks so much that we could ask, “can I read my notebook and pass NECO Physics 2020?” Don’t be scared of attempting exercises in Physics. Face the challenges.

SOLVE PROBLEMS IN NECO PHYSICS PAST QUESTIONS:

This is another factor that affects candidates’ success. Do not read Physics past questions; answer past questions. Ensure to understand and solve each problem. If you find any question difficult while attempting the Physics past questions, then feel free to consult your book for broad knowledge about the topic

I hope the NECO Physics Questions will never be a problem to you after going through this wonderful article.