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 481: A body of mass 4.2kg moving with velocity 10ms^-1 due east, hits a stationary body of mass 2.8kg. If they stick together after collision and move with velocity V due east, calculate the value of V Options:
  A) 3ms^-1
  B) 6ms^-1
  C) 7ms^-1
  D) 15ms^-1
  E) 17ms^-1
  Show Answer
  The correct answer is B.
• Question 482: Which of the following is used a nuclear reactor to slow down fast moving neutrons? Options:
  A) Carbondioxide gas
  B) Liquid sodium metal
  C) Concrete shield
  D) Graphite rods
  E) Boron rods
  Show Answer
  The correct answer is E.
• Question 483: A machine has an efficiency of 80%. If the machine is required to overcome a load of 60N with a force of 40N, calculate its velocity ratio. Options:
  A) 0.53
  B) 0.83
  C) 1.20
  D) 1.50
  E) 1.88
  Show Answer
  The correct answer is E.
• Question 484: An air bubble of volume 4cm³ is formed 20m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10cm of water? Options:
  A) 2cm³
  B) 4cm³
  C) 6cm³
  D) 8cm³
  E) 12cm³
  Show Answer
  The correct answer is E.
• Question 485: The energy stored in a capacitor of capacitance 5 μF is 40J. What is the voltage applied across its terminals? Options:
  A) 4V
  B) 8V
  C) 16V
  D) 200V
  E) 4000V
  Show Answer
  The correct answer is E.
• Question 486:

  The force exerted on a charged body in an electric field depends on I. the charge on the body

  II. the electric field intensity

  III. the square of the mass of the body

  Options:
  A) I only
  B) II only
  C) I and II only
  D) I and III only
  E) II and III only
  Show Answer
  The correct answer is C.
• Question 487: An air bubble of volume 2 cm* is formed 20 m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10 m of water? Options:
  A) 6cm³
  B) 4cm³
  C) 3cm³
  D) 2cm³
  E) 1cm³
  Show Answer
  The correct answer is B.
• Question 488: A machine has an efficiency of 60%. If the machine is required to overcome a load of 30 N with a force of 20 N calculate its mechanical advantage? Options:
  A) 0.7
  B) 0.9
  C) 1.5
  D) 2.5
  E) 10.0
  Show Answer
  The correct answer is C.
• Question 489: Which of the following scientists postulated that moving particles exhibit wave properties? Options:
  A) Ernest Rutherford
  B) Erwin Schroedinger
  C) Frank Hertz
  D) Louis de Broglie
  E) Werner Heisenberg.
  Show Answer
  The correct answer is D.
• Question 490: The inability of the eye to focus near objects is known as Options:
  A) astigmatism
  B) eye ring
  C) hypermetropia
  D) myopia
  E) presbyopia
  Show Answer
  The correct answer is C.