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 31: The resultant of two forces acting on an object is maximum if the angle between them is Options:
  A) 45°
  B) 0°
  C) 90°
  D) 180°
  Show Answer
  The correct answer is B .
• Question 32: Calculate the wavelength of light travelling with a speed of 3 × 108ms^-1 and a frequency of 6.2 × 10¹⁴Hz. Options:
  A) 4.8 × 10^-8m
  B) 4.8 × 10^-7m
  C) 4.8 × 10^-6m
  D) 4.8 × 10^-5m
  E) 4.8 × 10^-4m
  Show Answer
  The correct answer is B .
• Question 33: The energy in the nucleus of atoms produce heat which can be used to generate Options:
  A) Kinetic energy
  B) Mechanical energy
  C) Electrical energy
  D) Potential energy
  Show Answer
  The correct answer is A .
• Question 34: Which of the following correctly, describes the image of an object, 4cm from a diverging lens of focal length 12cm? Options:
  A) The image is virtual, 3cm in front of the lens
  B) The image is real, 6cm behind the lens
  C) The image is virtual, 6cm in front of the lens
  D) The image is real, 3cm in front the lens
  Show Answer
  The correct answer is A .
• Question 35: When a pure semiconductor is heated, its resistance Options:
  A) increases
  B) decreases
  C) remains the same
  D) increases and then decreases
  Show Answer
  The correct answer is B .
• Question 36: A good electric cell should have the following except Options:
  A) A minimum of polarization effect
  B) A long life
  C) A cheap and safe electrolytes
  D) Cost and dangerous of the cell
  Show Answer
  The correct answer is D .
• Question 37:

  

  The diagram above is a block and tackle pulley system in which an effort of 80N is use to lift a load of 240N. The efficiency of the machine is

  Options:
  A) 60%
  B) 50%
  C) 40%
  D) 33%
  Show Answer
  The correct answer is B .
• Question 38: A car moves with an initial velocity of 25 ms^-1 and reaches a velocity of 45 ms^-1 in 10s. what is the acceleration of the car? Options:
  A) 2 ms^-2
  B) 5 ms^-2
  C) 20 ms^-2
  D) 25 ms^-2
  Show Answer
  The correct answer is A .
• Question 39:

  I. The earth is not spherical but elliptical in shape

  II. Variation in latitude and longitude

  III. Rotation of the earth on its axis

  IV. Variation in the density of the earthOn which combination of the above does the weight of an object vary on the earth's surface?

  Options:
  A) I, II, III and IV
  B) II, III and IV only
  C) I, II and III only
  D) I and II only
  Show Answer
  The correct answer is D .
• Question 40: A current of 100mA passes through a conductor for 2 minutes. The quantity of electricity transported is Options:
  A) 200C
  B) 50C
  C) 12C
  D) 0.002C
  Show Answer
  The correct answer is C .