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 1091: In which of the following fields is repulsion NOT experienced? Options:
  A) Electrical only
  B) Gravitational only
  C) Magnetic only
  D) Magnetic and electrical
  E) Magnetic and gravitational
  Show Answer
  The correct answer is B .
• Question 1092: In the study of physics, temperature and heat are often confused with each other. Which of the following statements correctly defines these two element? Options:
  A) temperature is a measure of the average kinetic energy of the molecules of a substance
  B) heat is a measure of the total kinetic energy of the molecules in a system
  C) different materials require different amounts of heat to cause a given change in temperature
  D) all of the above
  E) A and B only
  Show Answer
  The correct answer is D .
• Question 1093: If the pressure on 100cm³ of an ideal gas is doubled while its kelvin temperature is halved, then the new volume of the gas will become Options:
  A) 25cm³
  B) 50cm³
  C) 100cm³
  D) 200cm³
  E) 400cm³
  Show Answer
  The correct answer is A .
• Question 1094: Which of the following types of waves needs a medium for propagation? Options:
  A) sound waves
  B) light waves
  C) radio waves
  D) x - rays
  Show Answer
  The correct answer is A .
• Question 1095: The velocity of sound in air will be doubled if it's absolute temperature is Options:
  A) Quadrupled
  B) Constant
  C) Halved
  D) Doulbed
  Show Answer
  The correct answer is A .
• Question 1096:

  A 20-toothed gear wheel drives a 60-toothed one. If the angular speed of the smaller wheel is 120 rev s^-1, the angular speed of the larger wheel is

  Options:
  A) 3 rev s^-1
  B) 40 rev s^-1
  C) 360 rev s^-1
  D) 2400 rev s^-1
  Show Answer
  The correct answer is B .
• Question 1097: The general gas law can be written as Options:
  A) PV ÷ T = a constant
  B) PV = a constant
  C) v/t = a constant
  D) p/T = a constant
  Show Answer
  The correct answer is A .
• Question 1098: Which is the incorrect formula for a body accelerating uniformly? Options:
  A) a = v² − u$\frac{2}{2}$
  B) v² = u² + 2as
  C) s = $\frac{1}{2}$ut + at²
  D) v² − u²= 2as
  Show Answer
  The correct answer is C .
• Question 1099: The time t₁, t₂ and t₃ for 20 complete oscillations of a simple pendulum experiment are 32.0s, 34.6s and 35.5s respectively. Calculate the mean period of the pendulum. Options:
  A) 1.60s
  B) 1.70s
  C) 1.73s
  D) 1.78s
  E) 5.11s
  Show Answer
  The correct answer is B .
• Question 1100:

  Which of these is observed when air is pumped out of a discharge tube without lowering its pressure

  Options:
  A) the conductivity of the air increases
  B) the conductivity of the air decreases
  C) conduction does not occur
  D) spark are produced
  Show Answer
  The correct answer is C .