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 2011: Which of the following is a correct explanation of the inertia of a body? Options:
  A) ability to overcome the earth's gravity
  B) reluctance to stop moving
  C) readiness to start moving
  D) reluctance to start moving and its readiness to stop moving once it has begun to move
  E) reluctance to start moving its reluctance to stop moving once it has begun to move
  Show Answer
  The correct answer is E .
• Question 2012:
  

  A block of mass 0.5 kg is suspended at the 40 cm mark of a light metre rule AB that is pivoted at point E, the 90 cm mark, and is kept at equilibrium by a string attached at point D, the 60 cm mark, as shown in the figure above. Find the tension T in the string.

  [Take g = $10ms-2$ ]

  Options:
  A) 16.67N
  B) 15.67N
  C) 14.67N
  D) 18.67N
  Show Answer
  The correct answer is A .
• Question 2013:

  The conductivity of gases at low pressure can be termed as

  I. hot cathode emission

  II. thermo ionic emission

  III. cold cathode emission

  IV. Field emission

  Options:
  A) I and II
  B) II and III
  C) III and IV
  D) IV and V
  Show Answer
  The correct answer is C .
• Question 2014: The phenomenon that makes sound persist when its source has been removed is known as Options:
  A) acoustic vibration
  B) rarefaction
  C) echo
  D) reverberation
  Show Answer
  The correct answer is D .
• Question 2015:

  Which expression gives magnetic flux?

  Options:
  A) qVB sin$\theta$
  B) $\frac{\mu \varphi I}{2\pi r}$
  C) BA cos $\theta$
  D) -N $\frac{d\varphi }{dt}$
  Show Answer
  The correct answer is C .
• Question 2016: When an object is placed between the principal focus and the optical center of a convex lens, it could be used as a? Options:
  A) Simple microscope
  B) refecting lens
  C) compound microscope
  D) projector
  Show Answer
  The correct answer is A .
• Question 2017: A stone of mass m kg is held h meters above the floor for 50s. The work done in joules over this period is Options:
  A) mh
  B) mgh
  C) $\frac{mgh}{50}$
  D) O
  Show Answer
  The correct answer is D .
• Question 2018:
  

  In which of the following diagrams is the length of the tube equal to one wavelength?

  Options:
  A) a
  B) b
  C) c
  D) d
  Show Answer
  The correct answer is C .
• Question 2019: Which of the following correctly explains why soft iron is proffered to steel in electromagnets? i. soft iron is more readily magnetized than steel. ii. soft iron is more readily demagnetized than steel. iii. soft iron retains magnetism more than steel. Options:
  A) i only
  B) ii and iii only
  C) i and ii only
  D) i, ii, and iii.
  Show Answer
  The correct answer is C .
• Question 2020: A transformer which can produce 8V from a 240v a.c. supply, has an efficiency of 80%. If the current in the secondary coil is 15A, calculate the current in the primary coil. Options:
  A) 0.625A
  B) 1.600A
  C) 2.500A
  D) 6.250A
  Show Answer
  The correct answer is A .