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 291: The force with which an object is attracted to the earth is called its Options:
  A) acceleration
  B) mass
  C) gravity
  D) impulse
  E) weight
  Show Answer
  The correct answer is E .
• Question 292: A weight of 1000 grams hangs from a lever 20cm to the fulcrum. At the left is a 500-gram weight 20cm from the fulcrum, and a 200-gram weight x cm away from the fulcrum. What is the value of x that will make the lever balanced? Options:
  A) 50cm
  B) 20cm
  C) 10cm
  D) 30cm
  E) 70cm
  Show Answer
  The correct answer is A .
• Question 293: The ability of the eye to focus on objects at various distances is known as Options:
  A) accommodation
  B) astigmatism
  C) eye ring
  D) myopia
  E) presbyopia
  Show Answer
  The correct answer is A .
• Question 294:

  The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20º and 80ºC respectively is?

  Options:
  A) 3.0 x 10${}^2$km${}^{-1}$
  B) 3.0 x 10${}^3$km${}^{-1}$
  C) 5.0 x 10${}^3$km${}^{-1}$
  D) 3.0 x 10${}^4$km${}^{-1}$
  Show Answer
  The correct answer is B .
• Question 295: Power supply is transmitted at a very high voltage and low current in order to Options:
  A) make pass through the trasformers
  B) increase the power supply
  C) make it travel fast
  D) prevent overheating of the coil
  Show Answer
  The correct answer is D .
• Question 296: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .
• Question 297:

  Which of the following is not a vector quantity?

  Options:
  A) momentum
  B) force
  C) temperature
  D) displacement
  Show Answer
  The correct answer is C .
• Question 298: The helium isotope ${}_2^{3}He$ Options:
  A) has three pro tons and two neutrons
  B) has two protons and one neutron
  C) has two protons and three neutrons
  D) has one proton and two neutrons
  E) cannot exist because it has the same mass number as tritium
  Show Answer
  The correct answer is E .
• Question 299: An electron of charge a = 1.6 × 10^-19C is situated in a uniform electric field of intensity 2.4 × 105 V m^-1. What is the force on the electron? Options:
  A) 1.60 × 10^-19N
  B) 3.84 × 10¹⁹N
  C) 1.92 × 10^-14N
  D) 3.84 × 10^-14N
  E) 7.68 × 10^-14N
  Show Answer
  The correct answer is D .
• Question 300: The production and type of charge of a body can only be accounted for by the? Options:
  A) deficiency or surplus of electrons
  B) equibrium in protons and neutrons
  C) deficiency or surplus of protrons
  D) deficiency or surplus of neutrons
  Show Answer
  The correct answer is A .