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 421: Three 3ω resistance are connected in parallel what is the equivalent resistance? Options:
  A) 1ω
  B) 9ω
  C) 3ω
  D) 0.33ω
  Show Answer
  The correct answer is A .
• Question 422: Calculate the magnitude of the force required to just move a 20kg object along a horizontal surface if the coefficient of friction is 0.2. [g = 10ms^-2] Options:
  A) 400.0N
  B) 40.0N
  C) 4.0N
  D) 0.4N
  Show Answer
  The correct answer is B .
• Question 423: A projectile fired with initial velocity, u will attain its maximum height H when the angle of projection θ is Options:
  A) 30°
  B) 45°
  C) 60°
  D) 75°
  E) 90°
  Show Answer
  The correct answer is E .
• Question 424: A block and tackle pulley arrangement has 6 pulleys in which an effort of 50N supports a load of 200N, calculate the efficiency of the machine Options:
  A) 80.0%
  B) 76.6%
  C) 66.7%
  D) 60.7%
  Show Answer
  The correct answer is C .
• Question 425: water is a poor thermometric liquid because it Options:
  A) is opaque
  B) is a poor conductor
  C) wets glass
  D) has low vapour pressure
  Show Answer
  The correct answer is B .
• Question 426: The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of 20°C and 80°C respectively is Options:
  A) 3.0 x 10²Km^-1
  B) 3.0 x 10³Km^-1
  C) 5.0 x 10³Km^-1
  D) 3.0 x 10⁴Km^-1
  Show Answer
  The correct answer is B .
• Question 427: 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 428: The unit of quantity of electricity is called Options:
  A) the ampere
  B) the volts
  C) the coulomb
  D) the ammeter
  E) electromotive force
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  The correct answer is C .
• Question 429: A magnetic field is said to exist at a point if a force is Options:
  A) exerted on a stationary charge at the point
  B) exerted on a moving charge at the point
  C) deflected at the point
  D) strengthened at the point
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  The correct answer is B .
• Question 430: 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 .