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 1861:

  

  In the figure above, the work done by the force of 100N inclined at an angle of 60^o to the object dragged horizontally to a distance of 8m is

  Options:
  A) 800J
  B) 600J
  C) 100J
  D) 400J
  Show Answer
  The correct answer is D .
• Question 1862: Which of the following factors has no effect on the e.m.f. of a primary cell? Options:
  A) temperature
  B) size of the cell
  C) nature of the plate
  D) nature of the electrolyte
  Show Answer
  The correct answer is B .
• Question 1863:

  

  PQRS is rectangular cell with PQ perpendicular to the magnetic field as shown above. If a current flows in the the direction PQRS in what direction will the coil move

  Options:
  A) Upwards
  B) Downwards
  C) TOwards The North Pole
  D) Towards The South Pole
  Show Answer
  The correct answer is A .
• Question 1864:

  The surface temperature of a swimming pool on a warm day is 25ºC and the temperature at the bottom is 15ºC. If the swimming pool has a surface area of 620 $m^2$ and a depth of 1.5m. Find the rate at which energy is transferred by conduction from the surface to the bottom of the swimming pool.

  [Thermal conductivity of water (k) = 0.6071 Wm-1K-1]

  Options:
  A) 2.5kw
  B) 250kw
  C) 300kw
  D) 3.0kw
  Show Answer
  The correct answer is A .
• Question 1865:

  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 1866:

  

  The diagram above shows a solid figure with base PQ and center of gravity G on a inclined plane. Which of the following statements is correct

  Options:
  A) The solid will fall over if the vertical line through G lies outside the base
  B) The solid will fall over if the vertical line through lies inside the base
  C) The solid will not fall over if the vertical line through G lies outside the base
  D) The solid can never fall over
  Show Answer
  The correct answer is A .
• Question 1867: A travelling wave moving from left to right has an amplitude of 0.15m, a frequency of 550Hz and a wavelength of 0.01m. The equation describing the wave is Options:
  A) y = 0.15 sin 200π(x - 5.5t)
  B) y = 0.15 sin π(0.01x - 5.5t)
  C) y = 0.15 sin 5.5π(x - 200t)
  D) y = 0.15 sin π(550x - 0.01t)
  Show Answer
  The correct answer is A .
• Question 1868:

  Any line or section taken through an advancing wave in which all the particles are in the same phase is called the

  Options:
  A) wavelength
  B) wave coast
  C) wave trough
  D) wave front
  Show Answer
  The correct answer is D .
• Question 1869: The general gas law can be written as Options:
  A) PV ÷ T = a constant
  B) PV = a constant
  C) v/t = a constant
  D) p/T = a constant
  Show Answer
  The correct answer is A .
• Question 1870: A mass of a liquid at 30^oC is mixed with a mass of the same liquid at 70^oC and the temperature of the mixture is 45^oC. Find the ratio of the mass of the cold liquid to the mass of the other liquid. Options:
  A) 3 : 5
  B) 5 : 3
  C) 3 : 7
  D) 7 : 3
  Show Answer
  The correct answer is B .