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 1: A 500kg car which was initially at rest travelled with an acceleration of 5m sec^-2, its kinetic energy after 4 seconds was Options:
  A) 10⁵J
  B) 2.5 x 10³J
  C) 2 x 10³J
  D) 5 x 10³J
  E) 5 x 10^5J`
  Show Answer
  The correct answer is A .
• Question 2: A galvanometer of internal resistance 50$\mathrm{\Omega }$ has a full scale deflection for a current of 5mA. What is the resistance required to covert it to a voltmeter with full scale deflection of 10V? Options:
  A) 1750$\mathrm{\Omega }$
  B) 1950$\mathrm{\Omega }$
  C) 2000$\mathrm{\Omega }$
  D) 2500$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 3:

  A turning fork of frequency 340Hz is vibrated just above a cylindrical tube of height 1.2m. If water is slowly poured into the tube, at what maximum height will resonance occur.

  [speed of sound in air = 340ms^-1]

  Options:
  A) 0.95m
  B) 0.60m
  C) 0.50m
  D) 0.45m
  Show Answer
  The correct answer is D .
• Question 4:

  

  In the circuit diagram above , the ammeter reads a current of 3A when R is 5Ω and 6A when R is 2Ω. Determine the value of x

  Options:
  A) 8Ω
  B) 2Ω
  C) 10Ω
  D) 4Ω
  Show Answer
  The correct answer is C .
• Question 5: 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 6: The saturated vapour pressure of a liquid increases as the Options:
  A) volume of the liquid increases
  B) volume of the liquid decreases
  C) temperature of the liquid increases
  D) temperature of the liquid decreases
  Show Answer
  The correct answer is C .
• Question 7: One of the features of the fission process is that Options:
  A) its products are not radioactive
  B) it leads to chain reaction
  C) neutrons are not released
  D) the sum of the masses of the reactants equals the sum of masses of the products
  Show Answer
  The correct answer is B .
• Question 8:

  

  The length of piece of glass block was measured by means of a vernier calliper as shown above. The length of the glass block is

  Options:
  A) 1.63 cm
  B) 1.64 cm
  C) 1.65 cm
  D) 1. 66 cm
  Show Answer
  The correct answer is B .
• Question 9:

  A lead bullet of mass 0.05kg is fired with a velocity of 200ms${}^{-1}$ into a block of mass 0.95kg. Given that the lead block can move freely, the final kinetic energy after impact is?

  Options:
  A) 50J
  B) 100J
  C) 150J
  D) 200J
  Show Answer
  The correct answer is A .
• Question 10: Which of the following features is NOT a characteristic of natural radioactivity? Options:
  A) Radioactivity is a nuclear phenomenon
  B) Radioactivity is exhibited only by elements of mass number greater than 206
  C) The radioactivity of an element is affected by electric and magnetic fields in the surroundings
  D) Radioactive substances emits three types of radiations, a-rays, $\beta$-rays and y-rays
  E) The radioactive element is transformed into a new element
  Show Answer
  The correct answer is B .