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 1031: 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 1032: Which of the following is NOT a force? Options:
  A) Friction
  B) Tension
  C) Upthrust
  D) Weight
  E) Impulse
  Show Answer
  The correct answer is E .
• Question 1033:

  

  The diagram above shows the force (F) acting on an object through a distance (x). The work done on this object is expressed as

  Options:
  A) Fx J
  B) ^Fx/₂ J
  C) Fx² J
  D) ^F/_x J
  Show Answer
  The correct answer is B .
• Question 1034: If a projectile has maximum range of 36m, find the speed of projection (Take g = 9.8m/s²) Options:
  A) 27m/s²
  B) 2m/s²
  C) 4m/s²
  D) 7m/s²
  Show Answer
  The correct answer is A .
• Question 1035: Which of the following are True for $\alpha$-decay. i. mass number, decrease by four. ii. Atomic number decreases by two. iii. mass number does not change. Options:
  A) i and ii only
  B) ii and iii only
  C) i and iii only
  D) i, ii, and iii only
  Show Answer
  The correct answer is A .
• Question 1036: Which of the following instrument is most accurately for comparing electromotive force (e.m.f) of two cells? Options:
  A) Voltmeter
  B) Meter rule
  C) Galvanometer
  D) Potentiometer
  Show Answer
  The correct answer is D .
• Question 1037: 22,000J of heat is required to raise the temperature of 1.5kg of paraffin from 20^oC to 30^oC. Calculate the specific heat capacity of paraffin. Options:
  A) 1466Jkg^-1oC^-1
  B) 2933Jkg^-1oC^-1
  C) 4400Jkg^-1oC^-1
  D) 5866Jkg^-1oC^-1
  Show Answer
  The correct answer is A .
• Question 1038:

  Two metals P and Q are heated through the same temperature difference. If the ratio of the linear expansivities of P to Q is 2:3 and the ratio of their

  Length is 3: 4 respectively, the ratio of the increase in lengths of P to Q is

  Options:
  A) 1:2
  B) 2:1
  C) 8:9
  D) 9:8
  Show Answer
  The correct answer is A .
• Question 1039: An electric bell operated within an evacuated bell jar enables us to infer correctly that Options:
  A) light waves require a medium for transmission
  B) sound waves do not require a medium for transmission
  C) light waves do not require a medium for transmission but sound waves do
  D) light waves travel much faster than sound waves
  E) light waves and sound waves travel at the same speed
  Show Answer
  The correct answer is C .
• Question 1040: A length of wire has a frequency of 255Hz when stretched by a force of b225N. If the fore increased to 324N, what is the new frequency of vibration Options:
  A) 306 Hz
  B) 512 Hz
  C) 488 Hz
  D) 356 Hz
  Show Answer
  The correct answer is A .