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 101: A constant force of 40N acting on a body initially at rest gives an acceleration of 0.1ms^-2 for 4s. Calculate the work done by the force Options:
  A) 8J
  B) 10J
  C) 32J
  D) 160J
  Show Answer
  The correct answer is C .
• Question 102:

  23	Na + X →	20	F +	4	He
  11		9		2

  What particle is X in the reaction above?

  Options:
  A) Alpha
  B) Beta
  C) Neurons
  D) Gamma
  Show Answer
  The correct answer is C .
• Question 103: Transistors are used for the Options:
  A) rectification of signals
  B) conversion of a.c to d.c
  C) amplification of signals
  D) conversion of d.c to a.c
  Show Answer
  The correct answer is C .
• Question 104: When an a.c. voltage is applied to a capacitor, no power is consumed because the current Options:
  A) leads the voltage by 90°
  B) lags behind the voltage by 90°
  C) and voltage are in phase
  D) and voltage are 180° out of phase
  Show Answer
  The correct answer is A .
• Question 105:

  Tha mass of a proton is approximately equal to that of

  Options:
  A) an $\alpha$-particle
  B) a $\beta$-Particle
  C) a neutron
  D) an electron
  Show Answer
  The correct answer is C .
• Question 106:

  I. A liquid boils when its saturated vapour pressure is equal to the external pressure

  II. Dissolved substances in pure water lead to increase in the boiling point.

  III. When the external pressure is increased, the boiling point increases.

  IV. Dissolved substances in pure water decrease the boiling point.Which combination of the above are peculiarities of the boiling point of a liquid?

  Options:
  A) I, II and III
  B) I, II, III and IV
  C) I, II and IV
  D) II, III and IV
  Show Answer
  The correct answer is A .
• Question 107:

  Which of the following is NOT a limitation of experimental measurements?

  Options:
  A) Systematic error
  B) Instrument resolution
  C) Random errors
  D) Human error
  Show Answer
  The correct answer is B .
• Question 108:

  I. Coherence
  II. Same frequency
  III. Same wavelength
  IV. Same Intensity

  Which of the conditions above are necessary to produce interference fringes?

  Options:
  A) I and III
  B) I, II and IV
  C) I, II and III
  D) II and III
  Show Answer
  The correct answer is C .
• Question 109:

  If 16mA of current flows through a conductor in one second, the number of electron transported per seconds is

  [1 electronic charge = 1.6 x 10^-19C]

  Options:
  A) 1.00 x 10²⁰
  B) 2.56 x 10^-18
  C) 2.56 x ^-17
  D) 1.00 x 10¹⁷
  Show Answer
  The correct answer is D .
• Question 110: According to Ohm's law, the ratio V/I is constant for Options:
  A) an electrolyte
  B) a diode
  C) a transistor
  D) silver
  E) all of the above
  Show Answer
  The correct answer is D .