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 1031: A force of 100N was used to kick a football of mass 0.8kg. Find the velocity with which the ball moves if it takes 0.8s to be kicked Options:
  A) $32m{s}^{-1}$
  B) $50m{s}^{-1}$
  C) $64m{s}^{-1}$
  D) $100m{s}^{-1}$
  Show Answer
  The correct answer is D .
• Question 1032: Which of the following will reduce the frequency of oscillation of a simple pendulum? Options:
  A) Decreasing the length of the string
  B) Increasing the amplitude of oscillation
  C) Increasing the length of the string
  D) Increasing the mass of the bob
  E) Reducing the mass of the bob.
  Show Answer
  The correct answer is C .
• Question 1033: When a ball rolls on a smooth level ground, the motion of its center is Options:
  A) translational
  B) oscillatory
  C) random
  D) rotational
  Show Answer
  The correct answer is A .
• Question 1034:

  A car of mass 800kg attains a speed of 25m/s in 20secs. The power developed in the engine is?

  Options:
  A) 1.25 x 10${}^4$W
  B) 2.50x 10${}^4$W
  C) 1.25 x 10${}^6$W
  D) 2.50 x 10${}^6$W
  Show Answer
  The correct answer is A .
• Question 1035: The angular dispersion of a prism depends on Options:
  A) the index of refraction only
  B) the angle of incidence as well as the index of refraction
  C) the angle of incidence only
  D) the thickness of the prism
  E) the prism angle
  Show Answer
  The correct answer is A .
• Question 1036: A vapour is said to be saturated when Options:
  A) moer molecules return to the liquid than leave it
  B) a dynamic equilibrium exists between the liquid molecules and the vapour molecules at a given temperature
  C) the vapour pressure is atmospheric
  D) the temperature of the vapour varies
  E) all molecules are moving with the same speed
  Show Answer
  The correct answer is B .
• Question 1037: Which of the following is NOT a part of a d.c. electric motor? Options:
  A) Field-magnet
  B) Armature
  C) Commutator
  D) Transformer
  Show Answer
  The correct answer is D .
• Question 1038:
  

  A block of mass 0.5 kg is suspended at the 40 cm mark of a light metre rule AB that is pivoted at point E, the 90 cm mark, and is kept at equilibrium by a string attached at point D, the 60 cm mark, as shown in the figure above. Find the tension T in the string.

  [Take g = $10ms-2$ ]

  Options:
  A) 16.67N
  B) 15.67N
  C) 14.67N
  D) 18.67N
  Show Answer
  The correct answer is A .
• Question 1039: A ray of light is incident on an equilateral triangular glass prism of refractive index 3/2, Calculate the angle through which the ray is minimally deviated in the prism Options:
  A) 30.0${}^{\circ }$
  B) 37.2${}^{\circ }$
  C) 42.0${}^{\circ }$
  D) 48.6${}^{\circ }$
  Show Answer
  The correct answer is B .
• Question 1040: Dewpoint is the temperature at which, water vapour in the atmosphere Options:
  A) turns into steam
  B) solidifies into ice pellets
  C) first condenses into liquid form
  D) is just sufficient to cause cooling
  E) has a relative humidity of fifty percent
  Show Answer
  The correct answer is D .