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 1971: A metre rule is pivoted at its mid-point with a vertical force of 10N hanging from the distance 30cm from the mid-point. At what distance must a 15N force hang to balance the ruler horizontally? Options:
  A) 30cm
  B) 10cm
  C) 20cm
  D) 25m
  Show Answer
  The correct answer is C .
• Question 1972:

  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 1973:

  

  What is the resultant capacitance of the circuit?

  Options:
  A) 1.5µF
  B) 18.0µF
  C) 6.0µF
  D) 6.8µF
  E) 8.83µF
  Show Answer
  The correct answer is A .
• Question 1974: A metal of volume 40 cm³ is heated from 30 °c to 90 °c, the increase in volume is Options:
  A) 0.12 cm³
  B) 4.00 cm³
  C) 1.20 cm³
  D) 0.40 cm³
  E) no correct option
  Show Answer
  The correct answer is E .
• Question 1975:

  

  What is the acceleration of a particle whose motion is graphically displayed in the diagram above

  Options:
  A) 0.67ms^-2
  B) 0.80ms^-2
  C) 0.87ms^-2
  D) 0.92ms^-2
  E) 0.20ms^-2
  Show Answer
  The correct answer is B .
• Question 1976: 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 1977: A real object is placed at a distance ucm in front of a curved mirror of focal length fcm. If the image is upright and magnified, then the mirror is Options:
  A) convex and u =2f
  B) concave and u = 2f
  C) convex and u = f
  D) concave and u = f
  Show Answer
  The correct answer is A .
• Question 1978: A cube of sides 0.1m hangs freely from a string. What is the upthrust on the cube when totally immersed in water? [density of water is 1000kgm^-2, g = 10ms^-2] Options:
  A) 1000 N
  B) 700 N
  C) 110 N
  D) 10 N
  Show Answer
  The correct answer is D .
• Question 1979: The velocity ratio of an inclined plane where angle of inclination in θ is Options:
  A) Sinθ
  B) Cosθ
  C) Tanθ
  D) $\frac{1}{\sin \theta }$
  Show Answer
  The correct answer is D .
• Question 1980: Mercury is suitable as a barometric fluid because it Options:
  A) expands uniformly
  B) is opaque
  C) is several times denser than water
  D) is a good conductor of heat
  Show Answer
  The correct answer is C .