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 1211:

  The earth's gravitational field intensity at its surface is about

  (G = 6.7 × 10${}^{-11}$Nm${}^2$/kg${}^2$, mass of the earth is 6 × 10${}^{24}$kg, radius of the earth is 6.4 × 10${}^6$m, g on the earth = 9.8m/s${}^2$)

  Options:
  A) 6.7N/kg
  B) 7.9N/kg
  C) 8.0N/kg
  D) 9.8N/kg
  Show Answer
  The correct answer is D .
• Question 1212: An electric generator with a power output of 3.0KW at a voltage of 1.5KV distributes power along cables of resistance 20.0Ω. The power loss in the cables is Options:
  A) 80.0W
  B) 40.0W
  C) 10.0W
  D) 0.1W
  Show Answer
  The correct answer is A .
• Question 1213: Two objects, one having three times the mass of the other, are dropped at the same time from a tall building. When they are above the ground, the two objects will have the same Options:
  A) Momentum
  B) Kinetic energy
  C) Potential energy
  D) Acceleration
  Show Answer
  The correct answer is C .
• Question 1214: The electrochemical equivalent of a metal is 0.126 x 10^-6 kgC^-1. The mass of the metal that a current of 5A will deposit from a suitable bath in 1 hour is Options:
  A) 0.0378 x 10 ^-3kg
  B) 0.227 x 10 ^-3kg
  C) 0.378 x 10 ^-3kg
  D) 0.595 x 10 ^-3kg
  E) 2.268 x 10 ^-3kg
  Show Answer
  The correct answer is E .
• Question 1215:

  I. The motion of the tyres of a moving car.

  II. The motion of a loaded test tube oscillated

  vertically.

  III. The beating of the heart.

  IV. A stone tied to a string and whirled round.

  V. The motion of the pistons in a gasoline engine.

  Which of the motions above is simple harmonic?

  Options:
  A) III, IV and V only
  B) II, III and V only
  C) II, III and IV only
  D) I,II and III only
  Show Answer
  The correct answer is B .
• Question 1216: Electric charges on the surface of a conductor would be most evenly distributed if the shape of the conductor is Options:
  A) conical
  B) cubical
  C) cylindrical
  D) parabolic
  E) spherical
  Show Answer
  The correct answer is C .
• Question 1217: A liquid of mass 1.0 x 10³kg fills a rectangular tank of length 2.5m and width 2.0m. If the tank is 4m high, what is the pressure at the middle of the tank?[g = 10ms^-2] Options:
  A) 1.0 x 10⁴Nm^-2
  B) 2.0 x 10³Nm^-2
  C) 1.5 x 10³Nm^-2
  D) 1.0 x 10³Nm^-2
  Show Answer
  The correct answer is D .
• Question 1218:

  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 1219: If a water pump at Kainji Dam is capable of lifting 1000kg of water through a vertical height of 10m in 10s, the power of the pump is [g = 10ms^-2] Options:
  A) 1.0kW
  B) 10.0kW
  C) 12.5kW
  D) 15.0kW
  E) 20.0kW
  Show Answer
  The correct answer is B .
• Question 1220: Two 50$\mu$F parallel plate capacitors are connected in series. The combined capacitor is then connected across a 100-V battery. The charge on each plate of the capacitor is Options:
  A) 5.00 x 10^-5C
  B) 2.50 x 10^-3C
  C) 1.25 x 10^-3C
  D) 1.00 x 10^-2C
  Show Answer
  The correct answer is B .