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 1511: When some ice cubes are added to a glass of warm water, the glass is cooled by a process of Options:
  A) conduction only
  B) convection only
  C) conduction and convection
  D) conduction and radiation
  E) radiation only
  Show Answer
  The correct answer is C .
• Question 1512: The work done in extending a spring by 40mm is 1.52J. Calculate the elastic’constant of the spring. Options:
  A) 38.8 Nm^-1
  B) 60.8 Nm^-1
  C) 190.0 Nm^-1
  D) 1900.0 Nm^-1
  E) 3800.0 Nm^-1
  Show Answer
  The correct answer is D .
• Question 1513: Two forces A and B act at a point. If their resultant is [given by] (B - A) in the direction of B, then Options:
  A) A and B are equal
  B) A is greater than B
  C) the angle between A and B is 0°
  D) the angle between A and B is 90°
  E) the angle between A and B is 180°
  Show Answer
  The correct answer is E .
• Question 1514: An electric current of 2 amperes flows in a heating coil of resistance 50 ohms for 3 minutes 20 seconds. Determine the heat produced Options:
  A) 0.5kJ
  B) 8.0kJ
  C) 20.0kJ
  D) 40.0kJ
  Show Answer
  The correct answer is D .
• Question 1515: A stone and a feather are dropped from the same height above the earth surface. ignoring air resistance, which of the following is correct? Options:
  A) the feather will be brown away by the wind while stone will drop steadily
  B) the stone and the feather will both reach the ground a the same time
  C) the feather will reach the ground first
  D) the stone will reach the ground first
  Show Answer
  The correct answer is B .
• Question 1516: A 2000W electric heater is used to heat a metal object of mass 5kg initially at 10^oC. If a temperature rise of 30^oC is obtained after 10min, the heat capacity of the material is Options:
  A) 6.0 x 10⁴J^oC^-1
  B) 4.0 x 10⁴J^oC^-1
  C) 1.2 x 10⁴J^oC^-1
  D) 8.0 x 10⁴J^oC^-1
  Show Answer
  The correct answer is B .
• Question 1517: A body has masses of 0.013kg and 0.012 kg in oil and water respectively. If the relative density of oil is 0.875 calculate the mass of the body. Options:
  A) 0.02 kg
  B) 0.03kg
  C) 0.04kg
  D) 0.05kg
  E) 0.06kg
  Show Answer
  The correct answer is A .
• Question 1518: The bond that forms a semiconductor is? Options:
  A) covalent
  B) electrovalent
  C) ionic
  D) metallic
  Show Answer
  The correct answer is A .
• Question 1519:

  Which of the following obeys Ohm's law?

  Options:
  A) all metals
  B) diode only
  C) all electrolytes
  D) glass
  Show Answer
  The correct answer is A .
• Question 1520: 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 .