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 541: An object of mass 20kg is released from a height of 10m above the ground level. The kinetic energy of the object just before it hits the ground is Options:
  A) 200J
  B) 4000J
  C) 2000J
  D) 500J
  Show Answer
  The correct answer is C .
• Question 542:

  Which of the units of the following physical quantities are derived?

  I. Area
  II. Thrust
  III. Pressure
  IV. Mass

  Options:
  A) I, II, III and IV
  B) I, II, and III only
  C) I, II, and IV only
  D) I and IV only
  Show Answer
  The correct answer is B .
• Question 543: Which of the following properties is NOT exhibited by sound waves? Options:
  A) Diffraction
  B) interference
  C) Polarisation
  D) Reflection
  E) Refraction
  Show Answer
  The correct answer is C .
• Question 544: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 545: A cube of side 10cm and mass 0.5kg floats in a liquid with only $\frac{1}{5}$ of its height above the liquid surface. What is the relative density of the liquid? Options:
  A) 0.125cm^-1
  B) 0.250gcm^-1
  C) 0.625cm^-1
  D) 2.500cm^-1
  Show Answer
  The correct answer is C .
• Question 546: Which of the following motions will be produced by a pair of equal, opposite and non-collinear parallel forces acting on a body? Options:
  A) Oscillatory
  B) Random
  C) Rotational
  D) Translational
  E) Vibratory
  Show Answer
  The correct answer is D .
• Question 547: Which of the following statements about water is NOT correct? Options:
  A) Pure water freezes at 0°C under normal pressure
  B) The volume of a given mass of water at 0° is less than its volume at 4°C
  C) Water boils at a definite temperature
  D) Water evaporates at all temperatures
  E) Water has its maximum density at 4°C
  Show Answer
  The correct answer is D .
• Question 548: A plane inclined at an angle at 30^o to the horizontal has an efficiency of 50%. The force parallel to the plane required to push a load of 120 N uniformly up the plane is Options:
  A) 40√3N
  B) 60N
  C) 120N
  D) 200N
  E) 240N
  Show Answer
  The correct answer is C .
• Question 549: A series RLC circuit is said to resonate, when Options:
  A) capacitive reactance is zero
  B) conductance is maximum
  C) current is minimum
  D) impedance is minimum
  E) inductive reactance is zero
  Show Answer
  The correct answer is D .
• Question 550:
  

  Three forces with magnitudes 16 N, 12 N and 21 N are shown in the diagram below. Determine the magnitude of their resultant force and angle with the x-axis

  Options:
  A) 7.63N,61°
  B) 8.71N,61°
  C) 7.63N,29°
  D) 8.71N,29°
  Show Answer
  The correct answer is B .