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 1411: 200g of water at 90^oC is mixed with 100g of water at 30^oC. What is the final temperature? Options:
  A) 50^oC
  B) 60^oC
  C) 70^oC
  D) 80^oC
  Show Answer
  The correct answer is C .
• Question 1412: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .
• Question 1413: A closed coil of wire is placed near a magnet. The magnet lies along the axis of the coil. Under which of the following conditions would there be no current in the coil? Options:
  A) When the coil is moved toward the stationary magnet
  B) When the coil is moved away from the stationary magnet
  C) when the coil is held stationary but the magnet is moved towards the coil
  D) when both the coil and the magnet are held stationary
  E) when the coil is held stationary but the magnet is moved away from the cell
  Show Answer
  The correct answer is D .
• Question 1414: The internationally agreed system of units(SI) for physical measurements are Options:
  A) Ib, ft, sec
  B) g, m, sec
  C) kg, m, sec
  D) cm, g, sec
  E) kg, cm, sec
  Show Answer
  The correct answer is C .
• Question 1415: A transformer is rated 240v. If the primary coil is 4000 turns and the secondary voltage 12v, determine the number of turns in the secondary coil. Options:
  A) 200
  B) 100
  C) 250
  D) 150
  Show Answer
  The correct answer is A .
• Question 1416: In an experiment to determine Young's Modulus for a wire, several loads are attached to the wire and the corresponding extension measured. The tensile stress in each case depends on the Options:
  A) load and the extension
  B) load and the radius of the wire
  C) radius of the wire and the extension
  D) extension and the original length of the wire
  Show Answer
  The correct answer is B .
• Question 1417: If a wheel 1.2 m in diameter rotates at one revolation per second, calculate the velocity of the wheel. Options:
  A) 3.6 ms^-1
  B) 3.77 ms^-1
  C) 4.0 ms^-1
  D) 7.5 ms^-1
  Show Answer
  The correct answer is B .
• Question 1418: Which of the following is stored by a dry Leclanche cell? Options:
  A) Electrical power
  B) Kinetic energy
  C) Electric current
  D) Chemical energy
  Show Answer
  The correct answer is D .
• Question 1419: The dimension of universal gravitational constant is……….? Options:
  A) ­$M{­}^{–1}{L}^3{T}^{–2}$
  B) ML³T²
  C) ML³
  D) MLT^-2
  Show Answer
  The correct answer is A .
• Question 1420: From the kinetic theory of gases, temperature is a Options:
  A) form of energy and is proportional to the total kinetic energy of the molecules
  B) form of energy and is proportional to the average kinetic energy of the molecules
  C) physical property and is proportional to the total kinetic energy of the molecules
  D) physical property and is proportional to the average kinetic energy of the molecules
  Show Answer
  The correct answer is D .