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 1641:

  The equilibrium position of objects in any field corresponds to situation of

  Options:
  A) equipotential energy
  B) maximum potential energy
  C) minimum potential energy
  D) maximum kinetic energy
  Show Answer
  The correct answer is C .
• Question 1642:

  

  The diagram above shows a velocity time graph representing the motion of a car. Find the total distance covered during the acceleration and retardation of the motion

  Options:
  A) 75m
  B) 150m
  C) 300m
  D) 375m
  Show Answer
  The correct answer is A .
• Question 1643:

  The gravitational pull on the moon is $\frac{1}{6}$ that of the earth. If a body weighs 6.0 N on the moon,what will be the weight on the earth?

  Options:
  A) 6.0 N
  B) 5.0 N
  C) 12.0 N
  D) 36.0 N
  Show Answer
  The correct answer is D .
• Question 1644: A boat travels due east at a speed 40ms^-1s across a river flow due south at 30ms^-1s. What is the resultant speed of the boat? Options:
  A) 1.3ms^-1
  B) 10.0ms^-1
  C) 50.0ms^-1
  D) 70.0ms^-1
  Show Answer
  The correct answer is C .
• Question 1645: A given mass of an ideal gas occupies a volume V at a temperature T and under a pressure p. If the pressure is increased to 2p and the temperature reduced to $\frac{1}{2T}$, then the percentage change in the volume of the gas is Options:
  A) 0%
  B) 25%
  C) 75%
  D) 300%
  E) 400%
  Show Answer
  The correct answer is C .
• Question 1646: 10⁶J of heat is required to boil off completely 2kg of a certain liquid. Neglecting heat lost to the surroundings, the latent heat of vaporization of the liquid is Options:
  A) 2.0 x 10⁶J kg^-1
  B) 5.0 x 10⁶J kg^-1
  C) 2.0 x 10⁵J kg^-1
  D) 5.0 x 10⁵J kg^-1
  Show Answer
  The correct answer is D .
• Question 1647: The electromagnetic waves that are sensitive to temperature changes are Options:
  A) X-rays
  B) Gamma-rays
  C) Ultra-violet rays
  D) Infra-red rays
  Show Answer
  The correct answer is D .
• Question 1648: Two bodies X and Y are projected on the same horizontal plane, with the same initial speed but at angles 30 and 60 respectively to the horizontal. Neglecting air resistance, the ratio of the range of X to that of Y is Options:
  A) 1:1
  B) 1:2
  C) √3:1
  D) √3
  Show Answer
  The correct answer is A .
• Question 1649: Calculate the force acting on an electron of charge 1.6 x 10^-19C placed in an electric field of intensity 10⁸Vm^-1 Options:
  A) 1.6 x 10^-11N
  B) 1.6 x 10^-14N
  C) 1.6 x 10^-16N
  D) 1.0 x 10^-16N
  Show Answer
  The correct answer is A .
• Question 1650: The power dissipated in an a.c. circuit with an r.m.s, current of 5A, r.m.s voltage of 10V and a phase angle of 60^o is Options:
  A) 25W
  B) 50W
  C) 120W
  D) 125W
  Show Answer
  The correct answer is A .