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 1851: The power dissipated in an a.c. circuit with an r.m.s, current of 5A, r.m.s voltage of 10V and a phase angle of 60^o is Options:
  A) 25W
  B) 50W
  C) 120W
  D) 125W
  Show Answer
  The correct answer is A .
• Question 1852: The following are derived units EXCEPT Options:
  A) kg m^-3
  B) N
  C) Ns
  D) m³
  E) kg
  Show Answer
  The correct answer is E .
• Question 1853: Which of the following types of motion is/are exhibited by a cylindrical drum rolling down an incline plane? Options:
  A) Random and rotational
  B) Rotational and oscillatory
  C) Rotational only
  D) Translations only
  E) Translational and rotational
  Show Answer
  The correct answer is E .
• Question 1854:

  A body starts from rest and moves with uniform acceleration of 6ms^-2. What distance does it cover in the third seconds

  Options:
  A) 15m
  B) 18m
  C) 27m
  D) 30m
  Show Answer
  The correct answer is A .
• Question 1855: The resistance of a 240V, 60 watt electric filament bulb is Options:
  A) 0.25$\mathrm{\Omega }$
  B) 480$\mathrm{\Omega }$
  C) 60$\mathrm{\Omega }$
  D) 240$\mathrm{\Omega }$
  E) 960$\mathrm{\Omega }$
  Show Answer
  The correct answer is E .
• Question 1856: A copper cube weighs 0.25 N in air, 0.17N when completely immersed in paraffin oil and 0.15 N when completely immersed in water.The ratio of upthrust in oil to upthrust in water is Options:
  A) 3 : 5
  B) 4 : 5
  C) 7 : 10
  D) 13 : 10
  Show Answer
  The correct answer is B .
• Question 1857: What is the acceleration due to gravity 'g' on the moon, if g is 10^-2 on the earth? Options:
  A) 0. 10 ms^-2
  B) 0.74ms^-2
  C) 1.6ms^-2
  D) 10.00ms^-2
  Show Answer
  The correct answer is C .
• Question 1858: If an object just begins to slide on a surface inclined at 30^o to the horizontal,the coefficient of friction is Options:
  A) √3
  B) ^√3/₂
  C) ¹/_√2
  D) ¹/_√3
  Show Answer
  The correct answer is D .
• Question 1859: The graphite rods surrounding the uranium fuel rods in a nuclear reactor, are used to Options:
  A) absorb the neutrons and hence halt the nuclear process
  B) create the neutrons and hence slow up the nuclear process
  C) slowdown the neutrons and hence slow up the nuclear process
  D) speed up the neutrons and hence speed up the nuclear process
  Show Answer
  The correct answer is C .
• Question 1860:
  

  A 400 N box is being pushed across a level floor at a constant speed by a force P of 100 N at an angle of 30.0° to the horizontal, as shown in the the diagram below. What is the coefficient of kinetic friction between the box and the floor?

  Options:
  A) 0.19
  B) 0.24
  C) 0.40
  D) 0.22
  Show Answer
  The correct answer is A .