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 1001: A gramophone record takes 5s to reach its constant angular velocity of 4$\pi$ rads^-1 from rest. Find its constant angular acceleration. Options:
  A) 0.4$\pi$ rads^-2
  B) 0.8$\pi$ rads^-2
  C) 1.3$\pi$ rads^-2
  D) 20.0$\pi$ rads^-2
  Show Answer
  The correct answer is B .
• Question 1002: Rationalize $\frac{2\sqrt{3}}{+}\sqrt{5}\sqrt{5}-\sqrt{3}$ Options:
  A) 3√15 - 11
  B) $\frac{3\sqrt{15}-11}{2}$
  C) 3√15 + 11
  D) $\frac{3\sqrt{15}+11}{2}$
  Show Answer
  The correct answer is D .
• Question 1003:

  Which of the following is true of an electrical charge?

  Options:
  A) Positive charge means deficit electrons
  B) Negative charge means excess of electrons
  C) electric current means movement of electrons
  D) All of the above
  Show Answer
  The correct answer is D .
• Question 1004: The linear expansivity of brass is 2 x 10^-5C^-1. If the volume of a piece of brass is 15.00cm³ at 0⁰C, What is the volume at 100^oC? Options:
  A) 16.03cm³
  B) 16.00cm³
  C) 15.09cm³
  D) 15cm³
  Show Answer
  The correct answer is C .
• Question 1005: Which of the following are true about the infra-red radiation? i. it is invisible ii. it is called heat ray iii. its frequency is higher than that of blue light iv. it travels as a transverse wave Options:
  A) i, ii, iii and iv
  B) i, ii, iv only
  C) i, iii, iv only
  D) ii, iii, iv only
  Show Answer
  The correct answer is B .
• Question 1006:

  A safety precaution designed to prolong the life of a lead acid accumulator is

  Options:
  A) By topping up the cells with concentrated acid
  B) The use of naked flame when charging the battery
  C) Keeping the specific gravity of the electrolyte within specified range
  D) By connecting wires to the terminals directly when testing the level of charging
  Show Answer
  The correct answer is C .
• Question 1007:
  

  From the diagram above, if the potential difference across the resistor, capacitor and inductor are 60V, 120V and 30V respectively, the effective potential difference is

  Options:
  A) 81
  B) 67
  C) 59
  D) 73
  Show Answer
  The correct answer is B .
• Question 1008:

  A mass of 0.5kg is whirled in a vertical circle of radius 2m at a steady rate of 2 rev/s. Calculate the centripetal force

  Options:
  A) 164N
  B) 160N
  C) 158N
  D) 172N
  Show Answer
  The correct answer is B .
• Question 1009:

  I. The number of neutrons released exceeds the number that caused the fission.

  II. There is loss of mass.

  III. Energy is produced.

  IV. Smaller nuclei merge to form larger nuclei

  Which of the statement above are correct about nuclear fission?

  Options:
  A) II,III and IV only
  B) I, II and IV only
  C) I,II and III only
  D) I, III and IV only
  Show Answer
  The correct answer is C .
• Question 1010:

  

  The figure above represents a frictionless pulley system in which a weight W is in equilibrium with a weight of 40N. Find the value of W.

  Options:
  A) 13.3N
  B) 20.0N
  C) 40.0N
  D) 80.0N
  Show Answer
  The correct answer is C .