Physics NECO exam past questions and answers

Physics NECO exam past questions and answers

Here they are;

Question: What is the SI unit of force?

A) Newton

B) Joule

C) Watt

D) Pascal

Answer: A) Newton

Question: Which law of motion states that an object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by a net external force?

A) Newton's First Law

B) Newton's Second Law

C) Newton's Third Law

D) Law of Gravitation

Answer: A) Newton's First Law

Question: What is the formula for calculating kinetic energy?

A) KE = \frac{1}{2}mv^2KE= 

2

1

​ 

 mv 

2

 

B) KE = mghKE=mgh

C) KE = FdKE=Fd

D) KE = \frac{mv}{t}KE= 

t

mv

​ 

 

Answer: A) KE = \frac{1}{2}mv^2KE= 

2

1

​ 

 mv 

2

 

Question: In which type of circuit are the components connected in a single pathway?

A) Parallel circuit

B) Series circuit

C) Complex circuit

D) Combination circuit

Answer: B) Series circuit

Question: What is the acceleration due to gravity on Earth's surface (approximately)?

A) 9.8 m/s²

B) 6.3 m/s²

C) 12.5 m/s²

D) 5.2 m/s²

Answer: A) 9.8 m/s²

Question: According to the law of conservation of energy, energy cannot be created or destroyed, only ___________.

A) Transformed

B) Multiplied

C) Dissipated

D) Created

Answer: A) Transformed

Question: What is the unit of electrical resistance?

A) Ohm

B) Ampere

C) Volt

D) Watt

Answer: A) Ohm

Question: Which type of wave requires a medium (solid, liquid, or gas) to propagate?

A) Transverse wave

B) Longitudinal wave

C) Electromagnetic wave

D) Standing wave

Answer: B) Longitudinal wave

Question: What is the relationship between the pressure and volume of a gas at constant temperature? (Boyle's Law)

A) P \propto VP∝V

B) P \propto \frac{1}{V}P∝ 

V

1

​ 

 

C) P \propto TP∝T

D) P \propto \frac{1}{T}P∝ 

T

1

​ 

 

Answer: A) P \propto VP∝V

Question: Which of the following is a vector quantity?

A) Speed

B) Distance

C) Mass

D) Velocity

Answer: D) Velocity

Question: What is the law of reflection for light?

A) The angle of incidence is equal to the angle of refraction.

B) The angle of incidence is equal to the angle of reflection.

C) The angle of refraction is greater than the angle of incidence.

D) Light does not follow the law of reflection.

Answer: B) The angle of incidence is equal to the angle of reflection.

Question: Which of the following is a fundamental particle in an atom with a negative charge?

A) Proton

B) Neutron

C) Electron

D) Nucleus

Answer: C) Electron

Question: What is the unit of electric current?

A) Volt

B) Ohm

C) Ampere

D) Watt

Answer: C) Ampere

Question: Which law states that the total electric flux through a closed surface is equal to the net electric charge inside the surface divided by the permittivity of free space?

A) Gauss's Law

B) Faraday's Law

C) Ampere's Law

D) Coulomb's Law

Answer: A) Gauss's Law

Question: What does the term "Ohm's Law" describe?

A) The relationship between current and voltage in a circuit.

B) The relationship between force and acceleration.

C) The relationship between pressure and volume in a gas.

D) The relationship between temperature and volume in a gas.

Answer: A) The relationship between current and voltage in a circuit.

Question: What is the primary function of a concave lens?

A) To converge light

B) To diverge light

C) To magnify images

D) To correct farsightedness

Answer: B) To diverge light

Question: Which principle states that the total energy of an isolated system remains constant over time?

A) Law of Conservation of Energy

B) Bernoulli's Principle

C) Archimedes' Principle

D) Hooke's Law

Answer: A) Law of Conservation of Energy

Question: What is the relationship between frequency and wavelength in a wave?

A) \text{Frequency} = \frac{\text{Wavelength}}{\text{Speed}}Frequency= 

Speed

Wavelength

​ 

 

B) \text{Frequency} = \text{Wavelength} \times \text{Speed}Frequency=Wavelength×Speed

C) \text{Frequency} = \frac{\text{Speed}}{\text{Wavelength}}Frequency= 

Wavelength

Speed

​ 

 

D) \text{Frequency} = \text{Wavelength} + \text{Speed}Frequency=Wavelength+Speed

Answer: C) \text{Frequency} = \frac{\text{Speed}}{\text{Wavelength}}Frequency= 

Wavelength

Speed

​ 

 

Question: In nuclear physics, what does the term "half-life" refer to?

A) The time it takes for half of a radioactive substance to decay.

B) The time it takes for a particle to travel half of its trajectory.

C) The time it takes for a photon to lose half of its energy.

D) The time it takes for a planet to complete half of its orbit.

Answer: A) The time it takes for half of a radioactive substance to decay.

Question: Which law states that the total electric current flowing into a junction is equal to the total current flowing out of the junction in a circuit?

A) Ohm's Law

B) Kirchhoff's Voltage Law

C) Kirchhoff's Current Law

D) Faraday's