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 1191: The relative densities of zinc, brass, copper, gold and silver are respectively 7.1, 8.5, 8.9, 19.3, 10.5. A metal ornament which weighs 0.425kg and can displace 50 x 10^-6m³m of water is made of Options:
  A) zinc
  B) brass
  C) copper
  D) gold
  E) silver
  Show Answer
  The correct answer is B .
• Question 1192: A ray of light passing through the centre of curvature of a concave mirror is reflected by the mirror at Options:
  A) 0^o
  B) 45^o
  C) 90^o
  D) 180^o
  Show Answer
  The correct answer is A .
• Question 1193: An object is placed in front of a converging lens of a focal length 20cm. The image is virtual and has a magnification of 2. What is the distance of the object from the lens? Options:
  A) 5cm
  B) 10cm
  C) 30cm
  D) 40cm
  Show Answer
  The correct answer is B .
• Question 1194: The difference observed in solids, liquids and gases can be accounted for by Options:
  A) The different molecules in each of them
  B) The spaces and forces acting between the molecules
  C) Thier melting points
  D) Their relative massess
  Show Answer
  The correct answer is B .
• Question 1195: 22,000J of heat is required to raise the temperature of 1.5kg of paraffin from 20^oC to 30^oC. Calculate the specific heat capacity of paraffin. Options:
  A) 1466Jkg^-1oC^-1
  B) 2933Jkg^-1oC^-1
  C) 4400Jkg^-1oC^-1
  D) 5866Jkg^-1oC^-1
  Show Answer
  The correct answer is A .
• Question 1196: Which of the following physical quantities is NOT a vector? Options:
  A) velocity
  B) work
  C) force
  D) electric field intensity
  E) magnetic induction
  Show Answer
  The correct answer is B .
• Question 1197:

  How much net work is required to accelerate a 1200 kg car from 10$m{s}^{-1}$ to 15$m{s}^{-1}$

  Options:
  A) 1.95×${10}^{5}j$
  B) 1.35×${10}^{4}j$
  C) 7.5×${10}^{4}j$
  D) 6.0×${10}^{4}j$
  Show Answer
  The correct answer is C .
• Question 1198:

  The main factor which affects the speed of sound wave is the?

  Options:
  A) properties of the medium
  B) amplitude of the sound wave
  C) intensity of the sound wave
  D) loudness of the sound wave
  Show Answer
  The correct answer is A .
• Question 1199: A planet has mass m₁ and is at a distance r, from the sun. A second planet has mass m₂ = 10m₁ and at a distance of r₂ = 2r₁ from the sun. Determine the ratio of the gravitational force experienced by the planets. Options:
  A) 1 : 5
  B) 2 : 5
  C) 3 : 5
  D) 4 : 5
  Show Answer
  The correct answer is B .
• Question 1200:

  An alternating current can induce voltage because it has

  Options:
  A) ripple value
  B) varying magnetic field
  C) weaker magnetic field than direct current
  D) high peak value
  Show Answer
  The correct answer is B .