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:

  The change in volume when 450kg of ice is completely melted is

  [density of ice = 900 kgm^-3, density of water = 100 kgm^-3]

  Options:
  A) 0.50m³
  B) 0.45m³
  C) 0.05m³
  D) 4.50m³
  Show Answer
  The correct answer is C .
• Question 2: A platinum-resistance thermometer has a resistance of 59 at 0^oC and 9Ω at l00^oC. Assuming that resistance changes uniformly with temperature, calculate the resistance of the thermometer when the temperature is 45^oC Options:
  A) 13.9 Ω
  B) 8.9 Ω
  C) 6.8 Ω
  D) 3.2 Ω
  E) 1.8 Ω
  Show Answer
  The correct answer is C .
• Question 3: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 4:

  Which of the following may be used to determine relative humidity in a physics laboratory?
  I. Manometer
  II. Wet-and-dry bulb hygrometer
  III. Hair hygrometer
  IV. A hydrometer.

  Options:
  A) III only
  B) I only
  C) II only
  D) II and III only
  Show Answer
  The correct answer is D .
• Question 5: The magnetic effect of a current-carrying coil is NOT utilized in the making of a/an Options:
  A) carbon microphone
  B) electric bells
  C) magnetic relay
  D) telephone earpiece
  E) thermostat
  Show Answer
  The correct answer is E .
• Question 6: The cost of running five 60 W lamps and four 100 W lamps for 20 hours if electrical energy cost #10.00 per kwh is Options:
  A) 280.00
  B) 160.00
  C) 120.00
  D) 140.00
  Show Answer
  The correct answer is D .
• Question 7:

  In an AC circuit, resonance occurs when the impedance of the circuit is:

  Options:
  A) Zero
  B) Maximum
  C) Equal to the capacitive reactance of the circuit
  D) Minimum
  Show Answer
  The correct answer is D .
• Question 8: The height at which the atmosphere ceases to exist is about 80km. If the atmospheric pressure on the ground level is 760mmHg, the pressure at a height of 20km above the ground level is Options:
  A) 380mmHg
  B) 570mmHg
  C) 190mmHg
  D) 480mmHg
  Show Answer
  The correct answer is B .
• Question 9: The instrument used to view stars is the Options:
  A) Prism binoculars
  B) Telescope
  C) Film projector
  D) Microscope
  Show Answer
  The correct answer is B .
• Question 10:

  A bar magnet is placed near and lying along the axis of a solenoid connected to a galvanometer. The pointer of the galvanometer shows no deflection when?

  Options:
  A) the magnet is moved towards the stationary solenoid
  B) there is no relative motion
  C) the magnet is moved away from the stationary solenoid
  D) the solenoid is moved away from the stationary magnet
  Show Answer
  The correct answer is B .