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 3000W electric cooker is to be used on a 200V mains circuit. Which of the fuses below can be used safely with the cooker?

  Options:
  A) 2A
  B) 5A
  C) 10A
  D) 20A
  Show Answer
  The correct answer is D .
• Question 2: The equation of a wave is y = 0.005 sin[x(0.5X - 200t)] where x and y are in meters and t is in seconds. What is the velocity of the wave? Options:
  A) 4000ms^-1
  B) 400ms^-1
  C) 250ms^-1
  D) 40ms^-1
  Show Answer
  The correct answer is B .
• Question 3: By what factor will the size of an object placed 10cm from a convex lens be increased if the image is seen on a screen placed 25cm from the lens? Options:
  A) 15.0
  B) 2.5
  C) 1.5
  D) 0.4
  Show Answer
  The correct answer is B .
• Question 4:

  The lead-acid accumulator consists of

  Options:
  A) lead as the positive electrode
  B) lead acid as the negative electrode
  C) hydrochloric acid as the electrolyte
  D) tetraoxosulphate (vi) acid as the electrolyte
  Show Answer
  The correct answer is D .
• Question 5: The internationally agreed system of units(SI) for physical measurements are Options:
  A) Ib, ft, sec
  B) g, m, sec
  C) kg, m, sec
  D) cm, g, sec
  E) kg, cm, sec
  Show Answer
  The correct answer is C .
• Question 6:

  

  In a resonance tube experiment, which is illustrated above, the velocity of sound in air is 327.68m/s, the frequency of the turning fork used is therefore

  Options:
  A) 128HZ
  B) 256HZ
  C) 512HZ
  D) 768HZ
  E) 1024HZ
  Show Answer
  The correct answer is C .
• Question 7:

  What is the cost of running five 50W lamps and four 100W lamps for 10 hours if electrical energy costs 2 Kobo per KWh?

  Options:
  A) N0.65
  B) N0.39
  C) N3.90
  D) N0.13
  Show Answer
  The correct answer is D .
• Question 8:

  Two bodies have masses in the ratio3:1. They experience forces whichimpart to them,acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced

  Options:
  A) 1:4
  B) 2:1
  C) 2:3
  D) 2:5
  Show Answer
  The correct answer is C .
• Question 9:

  A wire of length 10m is cooled from 50^oC to 10^oC. Calculate the decrease in the length of the wire. [c = 3 x 10^-5K^-1]

  Options:
  A) 1.8 x 10^-4m
  B) 1.5 x 10^-4m
  C) 1.5 x 10^-3m
  D) 1.8 x 10^-3m
  Show Answer
  The correct answer is C .
• Question 10: Which of the following is TRUE of the particles emitted in radioactive disintegration? Options:
  A) the alpha particle is the helium nucleus H
  B) the alpha particle is lighter than the beta particle
  C) the alpha particle is deflected more than the beta particle in a magnetic field
  D) the beta particle is deflected more than the alpha particle in a magnetic field
  Show Answer
  The correct answer is D .