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 1171: The volume of a given mass of gas is 40cm³ at 27° C. What is its volume at 90° C if its pressure remains constant? Options:
  A) 32.84cm³
  B) 40.02cm³
  C) 48.40cm³
  D) 57.44cm³
  E) 72.84cm³
  Show Answer
  The correct answer is C .
• Question 1172: An object of mass 5.0 cg moving with a velocity of 12ms^-1 due north hits a stationary body of mass 7.0kg. If they stick together after collision and move with velocity V due north, calculate the magnitude of V. Options:
  A) 12ms^-1
  B) 7ms^-1
  C) 6ms^-1
  D) 5ms^-1
  E) 4ms^-1
  Show Answer
  The correct answer is D .
• Question 1173:

  

  Which of the following bodies, each with centre of gravity G, lying on a horizontal table, is/are in unstable equilibrium?

  Options:
  A) II only
  B) III only
  C) I and IV only
  D) II and III only
  Show Answer
  The correct answer is B .
• Question 1174: A man wears convex lens glasses of focal length 40cm in order to correct his eye defect. instead of the optimum 25cm, his least distance of distinct vision is Options:
  A) 14cm
  B) 28cm
  C) 75cm
  D) 150cm
  Show Answer
  The correct answer is D .
• Question 1175: The magnitude of the resultant of two mutually perpendicular forces, F₁ and F₂ is 13N, if the magnitude of F₁ is 5N, what is the magnitude of F₂? Options:
  A) 2.6N
  B) 6.0N
  C) 12.0N
  D) 18.0N
  Show Answer
  The correct answer is C .
• Question 1176: An object is positioned between two plane mirrors inclined at right angles to each other. The object is 1 unit distance from each mirror, the number of images formed is Options:
  A) 1
  B) 2
  C) 3
  D) 4
  E) 5
  Show Answer
  The correct answer is C .
• Question 1177:

  How much net work is required to accelerate a 1200 kg car from 10$m{s}^{-1}$ to 15$m{s}^{-1}$

  Options:
  A) 1.95×${10}^{5}j$
  B) 1.35×${10}^{4}j$
  C) 7.5×${10}^{4}j$
  D) 6.0×${10}^{4}j$
  Show Answer
  The correct answer is C .
• Question 1178: An electric kettle, connected to a 240V mains, produces 6.0 x 10⁵J of heat energy to boil a quantity of water in 5 minutes. Find the resistance of the kettle. Options:
  A) 14.4$\mathrm{\Omega }$
  B) 28.8$\mathrm{\Omega }$
  C) 144$\mathrm{\Omega }$
  D) 288$\mathrm{\Omega }$
  E) 2880$\mathrm{\Omega }$
  Show Answer
  The correct answer is B .
• Question 1179: Which is a stringed Instrument? Options:
  A) drum
  B) flute
  C) piano
  D) saxophone
  E) trumpet
  Show Answer
  The correct answer is C .
• Question 1180: The energy stored in a capacitor of capacitance 10μF carrying a charge of 100μC Options:
  A) 5 x 10⁴ J
  B) 4 x 10² J
  C) 4 x 10^-3 J
  D) 5 x 10^-4 J
  Show Answer
  The correct answer is D .