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 1351:

  A car of mass 800kg attains a speed of 25m/s in 20secs. The power developed in the engine is?

  Options:
  A) 1.25 x 10${}^4$W
  B) 2.50x 10${}^4$W
  C) 1.25 x 10${}^6$W
  D) 2.50 x 10${}^6$W
  Show Answer
  The correct answer is A .
• Question 1352:

  

  The phase difference between waves P and q in the diagram above is

  Options:
  A) 2π
  B) π
  C) ^π/₄
  D) ^π/₂
  Show Answer
  The correct answer is D .
• Question 1353: The melting point of naphthalene is 78^oC. What is this temperature in kelvin Options:
  A) 100k
  B) 351k
  C) 378k
  D) 444k
  Show Answer
  The correct answer is B .
• Question 1354:

  A convex mirror is used as a driving mirror because

  I. its image is erect

  II. It has a large field of view

  III. It has a long focal length

  Identify the CORRECT statement(s)

  Options:
  A) I and III only
  B) I and II only
  C) II and IIII only
  D) I, II and III only
  Show Answer
  The correct answer is B .
• Question 1355: Alternating current can induce voltage because it has a Options:
  A) ripple value
  B) varying magnetic field
  C) weaker magnetic field than direct current
  D) stonger magnetic field than direct current
  E) high peak value
  Show Answer
  The correct answer is D .
• Question 1356:

  A lead bullet of mass 0.05kg is fired with a velocity of 200ms${}^{-1}$ into a block of mass 0.95kg. Given that the lead block can move freely, the final kinetic energy after impact is?

  Options:
  A) 50J
  B) 100J
  C) 150J
  D) 200J
  Show Answer
  The correct answer is A .
• Question 1357: 1,000 identical drops of oil of density 500kgm^-3 have a total mass of 5 x 10^-4kg. One of the drops forms a thin film of area 0.5m² on water. The thickness of the film is Options:
  A) 2 x 10^-8m
  B) 2 x 10^-9m
  C) 2 x 10^-7m
  D) 3 x 10^-9m
  E) 2.8 x 10^-8m
  Show Answer
  The correct answer is B .
• Question 1358: A machine has a velocity ratio of 5. It requires a 50kg weight to overcome a 200kg weight. The efficiency is Options:
  A) 4%
  B) 5%
  C) 40%
  D) 50%
  E) 80%
  Show Answer
  The correct answer is E .
• Question 1359:

  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 1360: The following are the scores of ten students in a test of 20 marks: 15, 16, 17, 13, 16, 8, 5, 16, 19, 17. What is the modal? Options:
  A) 13
  B) 15
  C) 16
  D) 19
  Show Answer
  The correct answer is C .