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 941:

  Tha mass of a proton is approximately equal to that of

  Options:
  A) an $\alpha$-particle
  B) a $\beta$-Particle
  C) a neutron
  D) an electron
  Show Answer
  The correct answer is C .
• Question 942:

  Of the following which is different from the other?

  Options:
  A) x-rays
  B) gamma-rays
  C) cathode rays
  D) ultra violet rays
  E) infrared rays
  Show Answer
  The correct answer is C .
• Question 943: Heat was supplied to a block of ice at 0^oC until half of it melted. Which of the following statements is true? Options:
  A) the temperature rises and the ice expand
  B) the temperature remains constant and the volume of the ice decreases
  C) the ice gives out heat as it melts and the temperature decreases
  D) the mass remains constant and the temperature increases
  E) the temperature decreases because some heat is lost
  Show Answer
  The correct answer is B .
• Question 944:

  

  In the figure above if the atmospheric pressure is 760mm, the pressure of the chamber G is

  Options:
  A) 660mm
  B) 690mm
  C) 830mm
  D) 860mm
  Show Answer
  The correct answer is C .
• Question 945: The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is Options:
  A) 3.0 x 10²Km^-1
  B) 3.0 x 10³Km^-1
  C) 5.0 x 10³Km^-1
  D) 3.0 x 10⁴Km^-1
  Show Answer
  The correct answer is B .
• Question 946: A body of mass 4kg is acted on by a constant force of 12N for 3 seconds. The kinetic energy gained by the body at the end of the time is Options:
  A) 144J
  B) 162J
  C) 81J
  D) 72J
  Show Answer
  The correct answer is B .
• Question 947: The total energy required to send a unit positive charge round a complete electrical circuit is the Options:
  A) kinetic energy
  B) potential difference
  C) electromotive force
  D) electrical energy
  Show Answer
  The correct answer is B .
• Question 948: Which of the following waves can propagate through a vacuum? Options:
  A) High velocity sound waves
  B) Ultrasonic waves
  C) Acoustic waves
  D) Infra-red waves
  Show Answer
  The correct answer is D .
• Question 949: the ratio of the linear expansivity of copper to that of iron is approximately 1.5. A specimen of iron and a specimen of copper expands by the same amount per unit rise in temperature. The ratio of their length is Options:
  A) 3
  B) 1.5
  C) 1.32
  D) 1
  E) 0.67
  Show Answer
  The correct answer is E .
• Question 950:

  Which of the units of the following physical quantities are derived?

  I. Area
  II. Thrust
  III. Pressure
  IV. Mass

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