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 731: A lorry travels 10km northwards, 4km eastwards, 6km southwards, 4km westwards to arrive at a point T. What is the total displacement? Options:
  A) 6km south
  B) 4km north
  C) 6km north
  D) 4km east
  Show Answer
  The correct answer is B .
• Question 732:

  What is the amount of heat required to raise the temperature of a 0.02 kg of ice cube from $-{10}^{o}C$ to ${10}^{o}C$ ?

  [specific latent heat of fusion of ice = 3.34 x ${10}^5$ $Jk{g}^{-}1$, Specific heat capacity of water = 4200 $Jk{g}^{-}1$$k^{-}1$

  Specific heat capacity of ice = 2100 $Jk{g}^{-}1$$k^{-}1$

  Options:
  A) 6680 J
  B) 1680 J
  C) 7520 J
  D) 7940 J
  Show Answer
  The correct answer is D .
• Question 733: When a box of mass 45kg, is given an initial speed of 5ms^-1 it slides along a horizontal floor a distance of 3m before coming to a rest. what is the coefficient of kinetic friction between the box and the floor? (G = 10ms^-2) Options:
  A) $\frac{5}{6}$
  B) $\frac{5}{12}$
  C) $\frac{1}{3}$
  D) $\frac{2}{3}$
  Show Answer
  The correct answer is B .
• Question 734: A manometer is an instrument used for measuring Options:
  A) Relative density of liquid
  B) Pressure in liquids and gases
  C) Humidity
  D) Atmospheric pressure
  Show Answer
  The correct answer is B .
• Question 735: In 24 days a radioactive isotope decreases in mass from 128g to 2g. What is the half-life of the radioactive material? Options:
  A) 2.54 days
  B) 4.00 days
  C) 4.80 days
  D) 6.00 days
  E) 8.00 days
  Show Answer
  The correct answer is B .
• Question 736: A radio station broadcast at a frequency of 600KHZ. If the speed of light in air is 3 × 108ms${}^{-1}$. Calculate the wavelength of the radio wave Options:
  A) 2.20 × 10${}^3$m
  B) 5.0 × 10${}^2$m
  C) 5.0 × 10${}^5$m
  D) 11.8 × 10${}^{11}$m
  Show Answer
  The correct answer is B .
• Question 737: In which of the following are the substance arranged in descending order of their thermal conductivities? Options:
  A) copper, steel, glass
  B) steel, copper, glass
  C) steel, glass, copper
  D) copper, glass, steel
  Show Answer
  The correct answer is A .
• Question 738: The internationally agreed system of units(SI) for physical measurements are Options:
  A) Ib, ft, sec
  B) g, m, sec
  C) kg, m, sec
  D) cm, g, sec
  E) kg, cm, sec
  Show Answer
  The correct answer is C .
• Question 739: To obtain a magnification of 2.5, how far should an object be placed from the pole of a thin converging lens of focal length 10.20m? Options:
  A) 0.13m
  B) 0.25m
  C) 0.28m
  D) 0.50m
  Show Answer
  The correct answer is C .
• Question 740: 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 .