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 1031: If NEPA charges 5k per kWhr, what is the cost of operating for 24 hours a lamp required 1A on a 200v line? Options:
  A) 24k
  B) 55k
  C) 40k
  D) 26k
  E) 32k
  Show Answer
  The correct answer is A .
• Question 1032: Which of the following ammeters may be used to measure alternating currents? i. moving-coil ammeter ii. moving-iron ammeter iii. hot-wire ammeter Options:
  A) i and ii only
  B) ii and iii only
  C) i and iii only
  D) i, ii, and iii
  Show Answer
  The correct answer is D .
• Question 1033: Two equal capacitances are connected first in series and then in parallel. The ratio of the effective series capacitance to the effective parallel capacitance is Options:
  A) 0.25
  B) 0.50
  C) 1.00
  D) 2.20
  E) 4.00
  Show Answer
  The correct answer is A .
• Question 1034: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 1035: The physical quantity that has the same dimensions as impulse is Options:
  A) energy
  B) momentum
  C) surface tension
  D) pressure
  Show Answer
  The correct answer is B .
• Question 1036: A bullet fired at a wooden block of thickness 0.15m manages to penetrate the block. If the mass of the bullet is 0.025kg and the average resisting force of the wood is 7.5 x 10³N, calculate the speed of the bullet just before it hits the wooden block. Options:
  A) 450ms^-1
  B) 400ms^-1
  C) 300ms^-1
  D) 250ms^-1
  Show Answer
  The correct answer is C .
• Question 1037: Isotopes are nuclei which have Options:
  A) the same number of nuetrons and electrons
  B) equal number of electrons and protons
  C) the same atomic number but different number of neutrons
  D) the same number of total particles
  Show Answer
  The correct answer is C .
• Question 1038:

  A current of 0.5 A flows through a resistor when connected to a 40 V battery. How much energy is dispatched in 2 minutes?

  Options:
  A) 2400 J
  B) 9600 J
  C) 1500 J
  D) 1200 J
  Show Answer
  The correct answer is A .
• Question 1039:

  

  Find the effective resistance in the diagram above

  Options:
  A) 6 Ω
  B) 12 Ω
  C) 18 Ω
  D) 24 Ω
  Show Answer
  The correct answer is D .
• Question 1040: What is the equivalent of 20K in Celsius scale? Options:
  A) 20^oC
  B) 293^oC
  C) 68^oC
  D) 36^oC
  Show Answer
  The correct answer is B .