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 2061: A body of mass 4kg is acted on by a constant force of 12N for 3 seconds. The kinetic energy gained by the body at the end of the time is Options:
  A) 144J
  B) 162J
  C) 81J
  D) 72J
  Show Answer
  The correct answer is B .
• Question 2062:
  

  A 200 kg load is raised using a 110 m long lever as shown in the diagram above. The load is 10m from the pivot P. If the efficiency of the the lever is 80%, find the effort E required to lift the load.

  [Take g = 10ms-2]

  Options:
  A) 250
  B) 300
  C) 450
  D) 200
  Show Answer
  The correct answer is A .
• Question 2063:

  

  The resultant capacitance in the figure above is

  Options:
  A) 15.0µF
  B) 9.8µF
  C) 1.3µF
  D) 0.8µF
  Show Answer
  The correct answer is D .
• Question 2064: Shadows and eclipses result from the Options:
  A) refraction of light
  B) rectilinear propagation of light
  C) defraction of light
  D) reflection of light
  Show Answer
  The correct answer is B .
• Question 2065: If a ball released from a height of 20m, How long would it take the ball to reach the ground? (assures g = 10m/s) Options:
  A) 2sec
  B) 3sec
  C) 35sec
  D) 2.4sec
  Show Answer
  The correct answer is A .
• Question 2066:

  A man stands 4m in front of a plane mirror. If the mirror is moved 1m towards the man, the distance between him and his new image is?

  Options:
  A) 3m
  B) 5m
  C) 6m
  D) 10m
  Show Answer
  The correct answer is C .
• Question 2067:

  In a thermonuclear reaction, the total initial mass is 5.02 x 10^-27kg and the total final mass is 0.01 x 10^-27kg. The energy released in the process is

  [c = 3.0 x 10⁸ms^-1]

  Options:
  A) 9.0 x 10^-13J
  B) 9.0 x 10^-12J
  C) 9.0 x 10^-11J
  D) 9.0 x 10^-10J
  Show Answer
  The correct answer is A .
• Question 2068:

  Which of the following has the lowest internal resistance when new?

  Options:
  A) Leclanche cell
  B) Daniell cell
  C) Torch battery
  D) Accumulator
  Show Answer
  The correct answer is D .
• Question 2069: A uniform cylindrical block of wood floats in water with one-third of its height above the water level, in a liquid of relative density 0.8, what fraction of its height will be above the liquid level? Options:
  A) $\frac{1}{6}$
  B) $\frac{1}{5}$
  C) $\frac{1}{3}$
  D) $\frac{4}{5}$
  E) $\frac{5}{6}$
  Show Answer
  The correct answer is E .
• Question 2070: Which of the following is true of sounds? Options:
  A) sound travels faster in air at 20^oC than at 30^oC
  B) the frequency of a given sound wave changes when it crosses the boundary seperating two media
  C) the wavelength of a given sound wave in air decreases as the temperature increases
  D) sound waves cannot be reflected
  Show Answer
  The correct answer is C .