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Past Questions and Answers

NECO Physics Past Questions And Answers (Objective and Theory)

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NECO Physics Past Questions And Answers (Objective and Theory)


Section A: Physics NECO Objective Questions


Question: Which of the following is a unit of measurement for electric charge?


A) Newton

B) Coulomb

C) Ohm

D) Tesla

Answer: B) Coulomb

Question: According to the law of reflection, the angle of incidence is equal to the angle of _______.


A) Transmission

B) Absorption

C) Refraction

D) Reflection

Answer: D) Reflection

Question: What is the SI unit of power?


A) Newton-meter

B) Watt

C) Joule

D) Volt-ampere

Answer: B) Watt

Question: In a series circuit, the total resistance is equal to the sum of the individual _______.


A) Capacitances

B) Voltages

C) Resistances

D) Currents

Answer: C) Resistances

Question: Which of the following is a scalar quantity?


A) Force

B) Velocity

C) Acceleration

D) Mass

Answer: D) Mass


Section B: Physics NECO Theory Questions


Question: Explain the concept of wave interference and provide an example.


Answer: Wave interference occurs when two or more waves meet, leading to the superposition of their amplitudes. An example is the formation of interference patterns in double-slit experiments.


Question: Define the term electric field and discuss its significance in understanding electrical interactions.


Answer: An electric field is a region in which a charged object experiences a force. Understanding electric fields is crucial for explaining the behavior of charged particles and designing electrical systems.


Question: Discuss the principles of conservation of energy and give practical examples.


Answer: The conservation of energy states that energy cannot be created or destroyed, only transformed. Examples include a swinging pendulum and a falling object.


Question: Explain the working principle of a transformer and its applications.


Answer: A transformer operates on the principle of electromagnetic induction, changing voltage levels. It is used in power distribution to step up or step down voltages efficiently.


Question: Describe the process of nuclear fusion and highlight its potential applications.


Answer: Nuclear fusion involves combining light atomic nuclei to form a heavier nucleus. It is a potential energy source, mimicking the sun’s process, and holds promise for clean and abundant energy production.

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