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 101: The fundamental frequency of vibration of a sonometer wire may be halved by Options:
  A) doubling the length of the wire
  B) doubling the mass of the wire
  C) reducing the tension by half
  D) reducing the absolute temperature by half
  Show Answer
  The correct answer is A .
• Question 102: The earth is four times the size of the moon and the acceleration due to gravity on the earth is 80 times that on the moon. The ratio of the mass of the moon to that of the earth is Options:
  A) 1:80
  B) 1:320
  C) 1:1280
  D) 1:4
  Show Answer
  The correct answer is A .
• Question 103: The compressed regions and the space-out regions in longitude wave are refers to as Options:
  A) Compression and Rarefaction
  B) Comparison and Explosion
  C) Reflection only
  D) Refraction only
  Show Answer
  The correct answer is A .
• Question 104: 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 105:

  A cannon is fired from town X, after how long is the sound heard at a town Y 4.95 km away?

  [velocity of sound in the air = 330 ms^-1]

  Options:
  A) 30 s
  B) 10 s
  C) 10 s
  D) 15 s
  Show Answer
  The correct answer is D .
• Question 106:

  When a yellow card is observed through blue glass, the card would appear

  Options:
  A) black
  B) green
  C) red
  D) white
  Show Answer
  The correct answer is A .
• Question 107: The motion of the moving skin of a talking drum can rightly be described as Options:
  A) translational
  B) random
  C) rotational
  D) oscillatory
  E) transitory
  Show Answer
  The correct answer is D .
• Question 108: Which of the following pairs of light rays show the widest separation in the spectrum of white light Options:
  A) Blue and red
  B) Green and yellow
  C) Indigo and violet
  D) Orange and red
  Show Answer
  The correct answer is A .
• Question 109: The thermometer whose reading is indicated by a change in colour of its thermometric property is the? Options:
  A) bi-metalic strip thermometer
  B) thermocouple
  C) platinium resistance thermometer
  D) optical pyrometer
  Show Answer
  The correct answer is D .
• Question 110: A gas would serve as an electrical conductor under Options:
  A) reduced pressure and high current
  B) increased magnetic field
  C) reduced pressure and reduced potential
  D) exposure to visible light
  Show Answer
  The correct answer is A .