Physics Exam Past Questions and Answers | JAMB, WAEC and NECO

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 731: A gas occupies a volume of 300cm³at a temperature of 27^oC. What is its volume at 54^oC, when the pressure is constant? Options:
  A) 150cm³
  B) 273cm³
  C) 327cm³
  D) 600cm³
  Show Answer
  The correct answer is C .
• Question 732: At what respective values of X, Y and Z would the unit of force, the newton, be dimensionally equivalent to M^xL^yT^z? Options:
  A) -1, 1, 2
  B) 1, 1, -2
  C) 1, -1, 2
  D) -1, 1, -2
  Show Answer
  The correct answer is B .
• Question 733: In fleming's right-hand rule, the thumb, the forefinger and the middle finger if held mutually at right angles represent respectively, the Options:
  A) motion, the field and the induced current
  B) induced current, the motion and the field
  C) field, the induced current and the motion
  D) induced current, the field and the motion
  Show Answer
  The correct answer is A .
• Question 734: Which of the following represents the correct precision if the length of a piece of wire is measured with a meter rule? Options:
  A) 35mm
  B) 35.0mm
  C) 35.00mm
  D) 35.01mm
  Show Answer
  The correct answer is A .
• Question 735: If a water pump at Kainji Dam is capable of lifting 1000kg of water through a vertical height of 10m in 10s, the power of the pump is [g = 10ms^-2] Options:
  A) 1.0kW
  B) 10.0kW
  C) 12.5kW
  D) 15.0kW
  E) 20.0kW
  Show Answer
  The correct answer is B .
• Question 736: A man whose mass is 80kg climbs a staircase in 20s and expends power of 120W. Find the height of the staircase.[g = 10ms^-2] Options:
  A) 1.8m
  B) 2.0m
  C) 2.5m
  D) 3.0m
  Show Answer
  The correct answer is D .
• Question 737:

  0.5kg of water at 10ºC is completely converted to ice at 0ºC by extracting (88000) of heat from it. If the specific heat capacity of water is 4200jkg${}^1$ Cº. Calculate the specific latent heat of fusion of ice.

  Options:
  A) 9.0kjkg${}^{-1}$
  B) 84.0kjkg${}^{-1}$
  C) 134.0kjkg${}^{-1}$
  D) 168.0kjkg${}^{-1}$
  Show Answer
  The correct answer is C .
• Question 738: A car moves with an initial velocity of 25 ms^-1 and reaches a velocity of 45 ms^-1 in 10s. what is the acceleration of the car? Options:
  A) 2 ms^-2
  B) 5 ms^-2
  C) 20 ms^-2
  D) 25 ms^-2
  Show Answer
  The correct answer is A .
• Question 739:

  Which of the following can be described as high tension transmission?

  Options:
  A) High resistance and low voltage
  B) Low current and high voltage
  C) High current and low voltage
  D) High current and low resistance
  Show Answer
  The correct answer is B .
• Question 740:

  The limiting frictional force between two surfaces depends on

  I. the normal reaction between the surfaces

  II. the area of surface in contact

  III. the relative velocity between the surfaces

  IV. the nature of the surfaces

  Options:
  A) I only
  B) II only
  C) III only
  D) I and IV only
  Show Answer
  The correct answer is D .