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 451: The magnitude of the angle of dip at the equator is Options:
  A) 360^o
  B) 0^o
  C) 90^o
  D) 180^o
  Show Answer
  The correct answer is B .
• Question 452: A string is fastened tightly between two walls 24cm apart. The wavelength of the second overtone is Options:
  A) 24cm
  B) 16cm
  C) 12cm
  D) 8cm
  Show Answer
  The correct answer is B .
• Question 453: 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 454:

  A body moves along a circular path with uniform angular speed of 0.6 rad s^-1 and at a constant speed of 3.0 ms^-1. Calculate the acceleration of the body towards the centre of the circle.

  Options:
  A) 0.2.ms^-2
  B) 1.8 ms^-2
  C) 5.0 ms^-2
  D) 5.4 ms^-2
  E) 25.0 ms^-2
  Show Answer
  The correct answer is B .
• Question 455:

  

  The figure above shows a uniform wood of weight 200N and length 50m. It is pivoted at one end and suspended by a cord at the other end at an angle of 30 degrees to the wood. Calculate the tension in the cord if the wood is horizontal.

  Options:
  A) 10N
  B) 20N
  C) 100N
  D) 200N
  Show Answer
  The correct answer is D .
• Question 456: Which of the following statements is NOT true of the image in a plane mirror? The image is Options:
  A) the same size as the object
  B) laterally inverted
  C) virtual
  D) magnified
  E) the same distance behind the mirror as the object is in front
  Show Answer
  The correct answer is D .
• Question 457:

  A solid weighs 4.8g in air, 2.8g in water and 3.2g in Kerosine. The ratio of density of the solid to that of the kerosine is

  Options:
  A) 2
  B) $\frac{3}{2}$
  C) $\frac{2}{3}$
  D) 3
  Show Answer
  The correct answer is D .
• Question 458: What does NOT affect the rate of evaporation of a liquid Options:
  A) exposed surface area of the liquid
  B) humidity of the surroundings
  C) nature of the liquid
  D) temperature the liquid
  E) volume of the liquid.
  Show Answer
  The correct answer is E .
• Question 459: Which of the following quantities has the same unit as the watt? Options:
  A) Force x time
  B) Force x distance
  C) Force x acceleration
  D) Force x velocity
  Show Answer
  The correct answer is D .
• Question 460: For a short sighted person, light rays from a point on a very distant object is focused Options:
  A) in front of the retina
  B) on the retina by a converging lens
  C) behind the retina by a diverging lens
  D) in front of the retina, a distance 2F from the lens
  Show Answer
  The correct answer is A .