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 1491: A 50W electric heater is used to heat a metal block of mass 5kg. If in 10 minutes a temperature rise of 12^oC is achieved, the specific heat capacity of the metal is Options:
  A) 400 J kg^-1K^-1
  B) 500 J kg^-1K^-1
  C) 390 J kg^-1K^-1
  D) 130 J kg^-1K^-1
  Show Answer
  The correct answer is B .
• Question 1492: A lorry travels 10km northwards, 4km eastwards, 6km southwards, 4km westwards to arrive at a point T. What is the total displacement? Options:
  A) 6km south
  B) 4km north
  C) 6km north
  D) 4km east
  Show Answer
  The correct answer is B .
• Question 1493: A dynamo primarily combines Options:
  A) mechanical energy into electrical energy
  B) electrical energy into kinetic energy
  C) potential energy into kinetic energy
  D) kinetic energy into potential energy
  Show Answer
  The correct answer is A .
• Question 1494: An object of mass 50kg is released from a height of 2m.Find the kinetic energy just before it strikes the ground Options:
  A) 250J
  B) 1000J
  C) 10 000J
  D) 100 000J
  Show Answer
  The correct answer is B .
• Question 1495: Two forces forming a couple are separated by a distance of 25cm. If one of the forces equals 40N, what is the moment of the couple? Options:
  A) 1000 Nm
  B) 500 Nm
  C) 10 Nm
  D) 5 Nm
  E) 1.6 Nm
  Show Answer
  The correct answer is C .
• Question 1496: The motion of the prongs of a sounding turning fork is Options:
  A) circular
  B) oscillatory
  C) random
  D) rotational
  E) translational
  Show Answer
  The correct answer is B .
• Question 1497:

  The electrolyte used in the Nickel-Iron (NiFe) accumulator is

  Options:
  A) dilute tetraoxosulphate(VI) acid
  B) barium chloride solution
  C) potassium hydroxide solution
  D) sodium hydroxide solution
  Show Answer
  The correct answer is C .
• Question 1498: The force on a current carrying conductor in a magnetic field is greatest when the Options:
  A) conductor makes an angle of 60° with the field
  B) force is idependent of the angles between the fields and the conductor
  C) conductor is parallel with the field
  D) conductor is at right angle with the field
  Show Answer
  The correct answer is D .
• Question 1499: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 1500: One of the features of the fission process is that Options:
  A) its products are not radioactive
  B) it leads to chain reaction
  C) neutrons are not released
  D) the sum of the masses of the reactants equals the sum of masses of the products
  Show Answer
  The correct answer is B .