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 1:

  A coil X is moved quickly away from the end Y of a stationary metal bar and a current then flows in X as shown above.

  Then

  Options:
  A) the bar is not a magnet
  B) Y is a north pole
  C) Y is a South pole
  D) Y repels coil X
  Show Answer
  The correct answer is B .
• Question 2: An object of mass 100g projected vertically upwards from the ground level has a velocity of 20ms^-1 at a height of 10m. calculate its initial kinetic energy at the ground level.[g = 10ms^-2, neglect air resistance] Options:
  A) 10 J
  B) 20 J
  C) 30 J
  D) 50 J
  Show Answer
  The correct answer is C .
• Question 3:

  The limiting frictional force between two surfaces depends on

  I. the normal reaction between the surfaces

  II. the area of surface in contact

  III. the relative velocity between the surfaces

  IV. the nature of the surfaces

  Options:
  A) I only
  B) II only
  C) III only
  D) I and IV only
  Show Answer
  The correct answer is D .
• Question 4:
  

  The property of wave shown in the diagram above is?

  Options:
  A) Diffraction
  B) Refraction
  C) Polarisation
  D) Interference
  Show Answer
  The correct answer is A .
• Question 5: If the distance between two point charges its increased by a factor of four, the magnitude of the electrostatic force between them will be Options:
  A) ¹/₄ of its former value
  B) ¹/₁₆ of its former value
  C) ¹/₂ of its former value
  D) 4 times its former value
  Show Answer
  The correct answer is B .
• Question 6: Lenz's law is a law of conservation of Options:
  A) electric charge
  B) electric current
  C) Energy
  D) Momentum
  Show Answer
  The correct answer is C .
• Question 7: A particle moves in a circular orbit of radius 0.02m. If the speed of the particle is 0.88ms^-1, calculate its frequency in cycles per second Options:
  A) 2.0Hz
  B) 7.0Hz
  C) 8.8Hz
  D) 14.0Hz
  E) 17.6Hz
  Show Answer
  The correct answer is B .
• Question 8:

  If a sound wave goes from a cold air region to a hot air region, its wavelength will?

  Options:
  A) increase
  B) decrease
  C) decrease then increase
  D) remain constant
  Show Answer
  The correct answer is A .
• Question 9:

  Which of the following is true of an electrical charge?

  Options:
  A) Positive charge means deficit electrons
  B) Negative charge means excess of electrons
  C) electric current means movement of electrons
  D) All of the above
  Show Answer
  The correct answer is D .
• Question 10: The vibration of an air column produces the sound in the Options:
  A) piano
  B) guiter
  C) flute
  D) school handbell
  Show Answer
  The correct answer is C .