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 1541: The quantity (timbre) of sound depends on Options:
  A) amplitude
  B) frequency
  C) harmonics
  D) velocity
  E) wavelength
  Show Answer
  The correct answer is C .
• Question 1542: An air bubble of volume 2 cm* is formed 20 m under water. What will be its volume when it rises to just below the surface of the water if the atmospheric pressure is equivalent to a height of 10 m of water? Options:
  A) 6cm³
  B) 4cm³
  C) 3cm³
  D) 2cm³
  E) 1cm³
  Show Answer
  The correct answer is B .
• Question 1543:

  The potential energy in an elastic string of force constant k, which has an extension X is?

  Options:
  A) kX
  B) KX${}^2$
  C) ½KX${}^2$
  D) ½K
  Show Answer
  The correct answer is C .
• Question 1544:

  Two bodies have masses in the ratio3:1. They experience forces whichimpart to them,acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced

  Options:
  A) 1:4
  B) 2:1
  C) 2:3
  D) 2:5
  Show Answer
  The correct answer is C .
• Question 1545:

  Arrange the following in the order of their increasing frequency.I. Visible light

  II. Gamma rays

  III. Radio waves

  IV. Infra-red radiation

  V. Ultra-violet radiation

  Options:
  A) I, II, III, IV, V
  B) II, III, IV, V, I
  C) III, IV, V, I, II
  D) IV, III, I. V, II
  E) III, IV, I,V, II
  Show Answer
  The correct answer is E .
• Question 1546: 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 1547:

  

  From the diagram above, determine the value of the resistance X

  Options:
  A) 6Ω
  B) 9Ω
  C) 12Ω
  D) 15Ω
  Show Answer
  The correct answer is D .
• Question 1548: Two charged particles are projected into a region where there is a magnetic field perpendicular to their velocities. if the charges are deflected in opposite directions, which of the following statements is true of the charge? Options:
  A) the charge must be of opposite sign
  B) positive charges are more in number
  C) the charges are electrically neutral
  D) the charges are of the same sign
  Show Answer
  The correct answer is A .
• Question 1549: What happens when a gas expands at constant temperature? Options:
  A) its pressure decreases
  B) the total momentum of its molecules remains constant
  C) its pressure decreases and the total momentum of its moleculees remains constant
  D) its pressure decreses and the total kinetic energy of its molecule decreases
  Show Answer
  The correct answer is A .
• Question 1550: A stand-by generator is connected to fifteen 40 W lamps and musician's 600 W amplifying system. How much energy is used if the generator runs for 6 hours? Options:
  A) 3.84k Wh
  B) 7.20k Wh
  C) 8.40k Wh
  D) 12.00k Wh
  E) 14.56k Wh
  Show Answer
  The correct answer is B .