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 1231: A bob of weight 0.1 N hangs from a massless string of length 50 cm. A variable horizontal force which increase from zero is applied to pull the bob until the string makes an angle of 60^o with the vertical. The work done is Options:
  A) 0.500 J
  B) 0.250 J
  C) 0.050 J
  D) 0.025 J
  Show Answer
  The correct answer is D .
• Question 1232: The magnitude of the angle of dip at the equator is Options:
  A) 360^o
  B) 0^o
  C) 90^o
  D) 180^o
  Show Answer
  The correct answer is B .
• Question 1233:

  The amount of energy required to change a kilogram of ice block into water without a change in temperature is?

  Options:
  A) specific latent heat of fusion of ice
  B) specific heat capacity of ice
  C) heat capacity of ice
  D) specific heat of vaporization of ice
  Show Answer
  The correct answer is A .
• Question 1234:

  The motion of a body is simple harmonic if the?

  Options:
  A) acceleration is always directed towards a fixed point
  B) path of motion is a straight line
  C) acceleration is proportional to the square of the distance from a fixed point
  D) acceleration is constant and directed towards a fixed point
  Show Answer
  The correct answer is A .
• Question 1235:

  A force, 10N, drags a mass 10kg on a horizontal table with an acceleration of 0.2ms. If the acceleration due to gravity is 10ms^-1, the coefficient of friction between the moving mass and the table is

  Options:
  A) 0.02
  B) 0.08
  C) 0.20
  D) 0.80
  Show Answer
  The correct answer is B .
• Question 1236: The extension in a spring when 5g wt was hung from it was 0.56cm. If Hooke's law is obeyed, What is the extension caused by a load of 20g wt? Options:
  A) 1.12m
  B) 2.14cm
  C) 2.52cm
  D) 2.80cm
  E) 2.24cm
  Show Answer
  The correct answer is E .
• Question 1237: A transformer is rated 240v. If the primary coil is 4000 turns and the secondary voltage 12v, determine the number of turns in the secondary coil. Options:
  A) 200
  B) 100
  C) 250
  D) 150
  Show Answer
  The correct answer is A .
• Question 1238: The accurate measurement of the relative density of a substance in its powdered form is done with a beam balance and Options:
  A) a density bottle
  B) an eureka can
  C) a pipette
  D) a burette
  Show Answer
  The correct answer is A .
• Question 1239:

  

  In the diagram above , if the magnetic field points into the paper and the force on a current - carrying conductor points upwards, what is the direction of the current?

  Options:
  A) Upwards
  B) Downwards
  C) Right
  D) Left
  Show Answer
  The correct answer is D .
• Question 1240:

  I. Coherence

  II. Same frequency

  III. Same wavelength

  IV. Same IntensityWhich of the conditions above are necessary to produce interference fringes?

  Options:
  A) I and III
  B) I, II and IV
  C) I, II and III
  D) II and III
  Show Answer
  The correct answer is C .