NECO Physics Exam Past Questions and Answers

Physics is the science that studies the nature and properties of matter and energy. It covers topics like motion, heat, light, sound, electricity, magnetism, and the structure of atoms.

• Question 171: Which of the following cells does not require a dipolar for effective and efficient delivery of current? Options:
  A) Daniel cell
  B) Dry Leclanche cell
  C) Nickel-iron accumulator
  D) Voltaic cell
  E) Wet Leclanche cell
  Show Answer
  The correct answer is C.
• Question 172: Two images Y and X are formed by a plane mirror and a convex mirror respectively. Which of the following is correct about their characteristics? Options:
  A) Both are inverted
  B) The magnification of Y is greater than one while that of X is one
  C) The magnification of Y is one while that of X is less than one
  D) Y is inverted while X is erect
  E) Y is real while X is virtual.
  Show Answer
  The correct answer is C.
• Question 173: The electric potential at a distance d from a point charge q in air of permittivity e_o is expressed as Options:
  A) q² ÷ 4πe_od
  B) q² ÷ 4πe_o
  C) q ÷ 4πe_od²
  D) q ÷ 4πe_od
  E) q ÷ 4πe_o²d
  Show Answer
  The correct answer is D.
• Question 174: The work done in extending a spring by 40mm is 1.52J. Calculate the elastic’constant of the spring. Options:
  A) 38.8 Nm^-1
  B) 60.8 Nm^-1
  C) 190.0 Nm^-1
  D) 1900.0 Nm^-1
  E) 3800.0 Nm^-1
  Show Answer
  The correct answer is D.
• Question 175: Which of the following statements is correct about volatile liquids? They have Options:
  A) low boiling point
  B) Low evaporating rate
  C) high conductivity
  D) high density
  E) high viscosity
  Show Answer
  The correct answer is A.
• Question 176: A transformer has an efficiency of 92.5%. the ratio number of turns in the primary coil to that in the secondary coil is 128 : 45. If the current passing through the secondary coil is 9.0A, calculate the current passing through the primary-coil. Options:
  A) 2.93A
  B) 3.16A
  C) 3.42A
  D) 25.60A
  E) 27.68A
  Show Answer
  The correct answer is C.
• Question 177: Inertia is the property of a body which makes the body to Options:
  A) accelerate
  B) be reluctant to move when at rest
  C) experience friction when moving
  D) move randomly
  E) retard
  Show Answer
  The correct answer is B.
• Question 178: A ball of mass 0.1kg moving with velocity of 20ms^-1 is hit by a force which acts on it for 0.02s. If the ball moves off in the opposite direction with a velocity of 25ms^-1 , calculate the magnitude of the force. Options:
  A) 25N
  B) 100N
  C) 125N
  D) 225N
  E) 250N
  Show Answer
  The correct answer is D.
• Question 179: An object of mass 2kg moves for 5s with a uniform velocity of 10ms. What is the magnitude of its acceleration in ms^-2
  ? Options:
  A) zero
  B) 2.5
  C) 10
  D) 12.5
  E) 100
  Show Answer
  The correct answer is A.
• Question 180: In the electrical method of making a magnet, the polar the magnet formed depends on the Options:
  A) amount of current passed
  B) direction of the current
  C) nature of the material used
  D) orientation of the magnetic material in space
  E) size of the magnetic material
  Show Answer
  The correct answer is B.