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 1261: If the volume of a gas increases steadily as the temperature decreases at constant pressure, the gas obeys Options:
  A) Graham's Law
  B) Boyle's Law
  C) Pressure law
  D) Charles Law
  E) No Correct Option
  Show Answer
  The correct answer is B .
• Question 1262: Which of the following scientists postulated that moving particles exhibit wave properties? Options:
  A) Ernest Rutherford
  B) Erwin Schroedinger
  C) Frank Hertz
  D) Louis de Broglie
  E) Werner Heisenberg.
  Show Answer
  The correct answer is D .
• Question 1263:

  

  In the diagram above, a rod 50 cm long of uniform cross-section is suspended horizontally on a fulcrum, F, by the action of two forces. What is the weight of the rod?

  Options:
  A) 40N
  B) 80N
  C) 120N
  D) 200N
  Show Answer
  The correct answer is B .
• Question 1264:

  A lead bullet of mass 0.05 kg is fired with a velocity of 200 ms into a lead block of mass 0.95 kg. Given that the lead block can move freely. the final kinetic energy after impact is

  Options:
  A) 100J
  B) 150J
  C) 50J
  D) 200J
  Show Answer
  The correct answer is C .
• Question 1265: What happens when a gas expands at constant temperature? Options:
  A) its pressure decreases
  B) the total momentum of its molecules remains constant
  C) its pressure decreases and the total momentum of its moleculees remains constant
  D) its pressure decreses and the total kinetic energy of its molecule decreases
  Show Answer
  The correct answer is A .
• Question 1266: Which of the following statements is correct about light and sound waves? Both Options:
  A) are longitudinal waves
  B) are transverse waves
  C) have the same velocity in air
  D) need a medium for propagation
  E) transmit energy
  Show Answer
  The correct answer is E .
• Question 1267: What is the escape velocity of a satellite launched from the earth’s surface? (Take g as 10ms^-2 and the radius of the earth as 6.4 × 10⁶m) Options:
  A) 7.80 × 10-3ms^-1
  B) 1.13 × 10-4ms^-1
  C) 3.56 × 107ms^-1
  D) 6.00 × 107ms^-1
  E) 1.20 × 108ms^-1
  Show Answer
  The correct answer is B .
• Question 1268: Vapour is said to be saturated on top of an enclosed liquid if _________ Options:
  A) The rate of condensation is greater than that of vapourization
  B) The rate of condensation is equal to that of vapourization
  C) There is neither condensation nor vaporization of the liquid
  D) The rate of condensation is less that that of vaporization
  Show Answer
  The correct answer is B .
• Question 1269: If the radius of the earth is 6.4 x 10⁶m, the escape velocity of a satellite from the earth is?
  [g = 10 ms^-2] Options:
  A) 1.13 x 10⁴ ms^-1
  B) 9.00 x 10³ ms^-1
  C) 8.00 x 10³ ms^-1
  D) 1.27 x 10⁴ ms^-1
  Show Answer
  The correct answer is A .
• Question 1270: An object is moving with a velocity of 5m^-1. At what height must a similar body be situated to have a potential energy equal in value with kinetic energy of the moving body? Options:
  A) 25.0m
  B) 20.0m
  C) 1.3m
  D) 1.0m
  Show Answer
  The correct answer is C .