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 1201:

  When a brick is taken from the earth's surface to the moon, its mass

  Options:
  A) Remains constant
  B) Becomes zero
  C) Reduces
  D) increases
  Show Answer
  The correct answer is A .
• Question 1202: The length of a displaced pendulum ball which passes its lowest point twice every seconds is [g = 10m^-2] Options:
  A) 0.25 m
  B) 0.45 m
  C) 0.58m
  D) 1.00m
  Show Answer
  The correct answer is A .
• Question 1203: A piece of iron weights 250 N in air and 200 N in a liquid of density 1000 kgm^-3. the volume of the iron is? Options:
  A) 5.0 x 10^-2 ms^-2
  B) 4.5 x 10^--2 ms^-3
  C) 2.5 x 10^-2 ms^-8
  D) 2.0 x 10^-2 ms^-3
  Show Answer
  The correct answer is C .
• Question 1204: In a semi conductor junction diode, as the depletion or barrier layer is forward-biased, the layer Options:
  A) widens
  B) narrows
  C) remains constant
  D) widens then narrows
  Show Answer
  The correct answer is C .
• Question 1205: Which of the following devices may be used to step up the voltage in a d.c. circuit? Options:
  A) a step-up transformer
  B) a d.c. generator
  C) a wattmeter
  D) an induction coil
  Show Answer
  The correct answer is B .
• Question 1206: Two bodies X and Y are projected on the same horizontal plane, with the same initial speed but at angles 30 and 60 respectively to the horizontal. Neglecting air resistance, the ratio of the range of X to that of Y is Options:
  A) 1:1
  B) 1:2
  C) √3:1
  D) √3
  Show Answer
  The correct answer is A .
• Question 1207:

  Which of the following obeys Ohm's law?

  Options:
  A) all metals
  B) diode only
  C) all electrolytes
  D) glass
  Show Answer
  The correct answer is A .
• Question 1208: Which of the following is most suitable for protecting the circuit of 2000W electric iron connected to a 250V mains? Options:
  A) 13A
  B) 8A
  C) 5A
  D) 3A
  Show Answer
  The correct answer is B .
• Question 1209: A galvanometer with full-scale deflection of 10 mA is to be converted to a voltmeter with full-scale deflection of 5v. the resistance of the galvanometer is Options:
  A) 1Ω
  B) 2Ω
  C) 5Ω
  D) 10Ω
  Show Answer
  The correct answer is D .
• Question 1210: Which of the following statements are TRUE about frictional force? i. it is always a disadvantage ii. it is sometimes a disadvantage iii. it always exist where there is a relative motion of two bodies that are in contact iv. it is sometimes very useful Options:
  A) i, iii only
  B) i, iv only
  C) ii, iii only
  D) ii, iv only
  Show Answer
  The correct answer is D .