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 2321: Which of the following is an essential physical property of the wires used for making fuses? Options:
  A) low density
  B) high thermal conductivity
  C) low electrical resistivity
  D) low melting point
  Show Answer
  The correct answer is D .
• Question 2322: Ripples on water and light waves are similar because both Options:
  A) have the same frequency
  B) can be refracted and diffracted
  C) are longitudinal waves
  D) have the same velocity
  Show Answer
  The correct answer is C .
• Question 2323:

  A lorry accelerates uniformly in a straight line with acceleration of $4m{s}^{-}2$ and covers a distance of 250 m in a time interval of 10 s. How far will it travel in the next 10 s?

  Options:
  A) 650
  B) 900
  C) 800
  D) 250
  Show Answer
  The correct answer is A .
• Question 2324: Which of the following instruments has a pure tone? Options:
  A) guitar
  B) vibrating strings
  C) tuning fork
  D) siren
  Show Answer
  The correct answer is C .
• Question 2325:

  118.8cm² surface of the copper cathode of a voltameter is to be coated with 10^-6m thick copper of density 9 x 10³kgm^-3. How long will the process run with 10A constant current?

  [3.3 x 10^-7kgC^-1]

  Options:
  A) 5.4 min
  B) 10.8 min
  C) 15.0 min
  D) 20.0 min
  Show Answer
  The correct answer is A .
• Question 2326: A body rolls down a slope from a height of 100m. its velocity at the foot of the slope is 20ms^-1. What percentage of its initial potential energy is converted into kinetic energy? [g = 10ms^-1] Options:
  A) 40%
  B) 35%
  C) 20%
  D) 15%
  Show Answer
  The correct answer is C .
• Question 2327: Three capacitors of capacitance 2μF, 4μFand 8μF are connected in parallel and a P.D of 6V is maintained across each capacitor, the total energy stored is Options:
  A) 2.52 x 10^-6J
  B) 6.90 x 10^-6J
  C) 2.52 x 10^-4J
  D) 6.90 x 10^-4J
  Show Answer
  The correct answer is C .
• Question 2328:

  

  In the diagram shown, which of the simple pendulum will resonate with P when set into oscillation?

  Options:
  A) U
  B) T
  C) R and T
  D) Q and R
  Show Answer
  The correct answer is B .
• Question 2329: The sign of the change on a charged glass rod may be determined with Options:
  A) a charged electroscope
  B) an uncharged electroscope
  C) a galvanometer
  D) an electrometer
  Show Answer
  The correct answer is A .
• Question 2330:

  Metal rods of length 20m each are laid end to end to form a bridge at 25^oC. What gap will be provided between consecutive rails for the bridge to withstand 75^oC?

  [Linear expansivity of the material = 2.0 x 10^-5K^-1]

  Options:
  A) 0.20m
  B) 0.22m
  C) 0.25m
  D) 0.02m
  Show Answer
  The correct answer is D .