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: If a ball released from a height of 20m, How long would it take the ball to reach the ground? (assures g = 10m/s) Options:
  A) 2sec
  B) 3sec
  C) 35sec
  D) 2.4sec
  Show Answer
  The correct answer is A .
• Question 1212: A sealed flask contains 600cm³ of air at 27°C and is heated to 35°C at constant pressure. The new volume is? Options:
  A) 508 cm³
  B) 516 cm³
  C) 608 cm³
  D) 616 cm³
  Show Answer
  The correct answer is D .
• Question 1213: At what depth below the sea-level would one experience a change of pressure equal to one atmosphere? Density of sea water = 1013kg^-3, one atmosphere = 0.01 x 10⁵Nm^-2, g = 10ms^-2 Options:
  A) 0.1m
  B) 1.0m
  C) 10.0m
  D) 100.0m
  Show Answer
  The correct answer is C .
• Question 1214: As a positively charge rod is brought nearer to the top cap of a positively charged gold leaf electroscope, the divergence of the leaves will Options:
  A) decrease to zero
  B) steadily increase
  C) decrease to zero and then increase
  D) remain constant
  E) increase to a maximum and then decrease
  Show Answer
  The correct answer is B .
• Question 1215: On top of a spiral spring of the force constant 500Nm^-1 is placed a mass of 5 x 10^-3 kg. If the spring is compressed downwards by a length of 0.02m and then released, calculate the height to which the mass is projected Options:
  A) 8 m
  B) 4 m
  C) 2 m
  D) 1 m
  Show Answer
  The correct answer is C .
• Question 1216:

  A siren having a ring of 200 hole makes 132 rev/min. A jet of air is directed on the set of holes. Calculate the frequency and wavelength in air of the note produced (take v = 350m/s)

  Options:
  A) 0.875m
  B) 0.625m
  C) 0.335m
  D) 0.125m
  Show Answer
  The correct answer is A .
• Question 1217: 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 1218: Two tuning forks of frequency 256Hz and 260Hz are sounded close to each other. What is the frequency of the beats produced? Options:
  A) 2Hz
  B) 4Hz
  C) 8Hz
  D) 258Hz
  Show Answer
  The correct answer is B .
• Question 1219: A block of aluminum is heated electrically by a 30 w heater if the temperature rises by 10°c in 5 minutes, the heat capacity of the aluminum is Options:
  A) 900 JK^-1
  B) 90 JK^-1
  C) 100 JK^-1
  D) 200 JK^-1
  Show Answer
  The correct answer is A .
• Question 1220: A quantity of ice at 10^oC is heated until the temperature of the heating vessel is 90^oC. Which of the following constants is NOT required to determine the quantity of heat supplied to the vessel? Options:
  A) specific heat capacity of ice
  B) specific heat capacity of water
  C) specific latent heat of fusion
  D) specific latent heat of vaporization
  Show Answer
  The correct answer is D .