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.
