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 301: The d.c generator has essentially the same components as the a.c generator except the presence of? Options:
  A) slip-ring
  B) carbon brushes
  C) split ring
  D) armature
  Show Answer
  The correct answer is C .
• Question 302:

  The impulse of a force is deduced from Newton's second law as

  Options:
  A) F = ma
  B) F = m($\frac{v-u}{t}$)
  C) F = mg
  D) F = mv - mu
  Show Answer
  The correct answer is B .
• Question 303: A projectile attains its maximum height when the angle of projection is Options:
  A) 30°
  B) 45°
  C) 60°
  D) 75°
  E) 90°
  Show Answer
  The correct answer is B .
• Question 304: When an object is placed very close to the pole of a concave mirror, the virtual image obtained is Options:
  A) diminished and upright
  B) diminished and inverted
  C) enlarged and inverted
  D) enlarged and upright
  Show Answer
  The correct answer is D .
• Question 305: An electric device is rated 2000W, 250V. Calculate the maximum current it can take Options:
  A) 9A
  B) 8A
  C) 7A
  D) 6A
  Show Answer
  The correct answer is B .
• Question 306: A handbag containing some load weighing 162N is carried by two students each holding the handle of the bag next to him. If each handle is pulled ${60}^{\circ }$ to the vertical, find the force on each student's arm Options:
  A) 81N
  B) 121N
  C) 162N
  D) 324N
  Show Answer
  The correct answer is C .
• Question 307:

  

  The value of F in the figure above when in equilibrium is

  Options:
  A) 10N
  B) 12N
  C) 20N
  D) 27N
  Show Answer
  The correct answer is C .
• Question 308: When a charge moves through an electric circuit in the direction of an electric force, it Options:
  A) gains both potential and kinetic energy
  B) gains potential energy and lose kinetic energy
  C) loses potential energy and gains kinetic energy
  D) loses both potential and kinetic energy
  Show Answer
  The correct answer is A .
• Question 309:

  

  The internal resistance of each of the cells E1 and E2 Shown in the figure above is 2 Ohm. Calculate the total current in the circuit

  Options:
  A) 0.80A
  B) 0.50A
  C) 0.40A
  D) 0.004A
  Show Answer
  The correct answer is C .
• Question 310: A certain radioisotope of ${}_{92}^{235}U$ emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elements respectively are Options:
  A) 219 and 87
  B) 84 and 223
  C) 223 and 87
  D) 219 and 81
  Show Answer
  The correct answer is A .