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 1711: A force of 100N was used to kick a football of mass 0.8kg. Find the velocity with which the ball moves if it takes 0.8s to be kicked Options:
  A) $32m{s}^{-1}$
  B) $50m{s}^{-1}$
  C) $64m{s}^{-1}$
  D) $100m{s}^{-1}$
  Show Answer
  The correct answer is D .
• Question 1712: Which of the following statements about friction is NOT correct? Options:
  A) The force of kinetic friction is less than the force of static friction
  B) The force of kinetic friction between two surfaces is independent of the areas in contact provided the normal reaction is unchanged
  C) The force of rolling friction between two surfaces is less than the force of sliding friction
  D) The angle of friction is the angle between the normal reaction and the force of friction
  E) Friction may be reduced by lubriction
  Show Answer
  The correct answer is A .
• Question 1713: When the r.m.s value of a source of electricity supply is given as 240v, it means that the peak value of the supply is Options:
  A) 240v
  B) 340v
  C) 480v
  D) 57600v
  Show Answer
  The correct answer is B .
• Question 1714:

  A man stands 4m in front of a plane mirror. If the mirror is moved 1m towards the man, the distance between him and his new image is?

  Options:
  A) 3m
  B) 5m
  C) 6m
  D) 10m
  Show Answer
  The correct answer is C .
• Question 1715: Which of the following pairs of musical instruments produce sound due to the vibration of air column? Options:
  A) Bell and piano
  B) Guitar and flute
  C) Trumpet and drum
  D) Trumpet and flute
  E) Violin and organ
  Show Answer
  The correct answer is D .
• Question 1716: A vehicle of mass m is driven by an engine of power P from rest. Find the minimum time it will take to acquire a speed Options:
  A) $\frac{m{v}^2}{t}$
  B) $\frac{m{v}^2}{2t}$
  C) $\frac{mv}{t}$
  D) $\frac{mv}{2t}$
  Show Answer
  The correct answer is A .
• Question 1717: If the load at the end of a sonometer wire is immersed in a bucket of water, the original fundamental frequency of the wire could be restored by Options:
  A) decrease the length of the wire
  B) increasing the length of the wire
  C) increasing the mass per unit length of the wire
  D) changing the temperature of the wire
  Show Answer
  The correct answer is B .
• Question 1718: An electric heater rated 220v, 1000 w is immersed into a bucket full of water, calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds.[specific heat capacity of water = 4200 jkg^-1 K^-1] Options:
  A) 4.28 kg
  B) 42.86 kg
  C) 1.02 kg
  D) 7.14 kg
  Show Answer
  The correct answer is C .
• Question 1719: A p-n junction diode is used as? Options:
  A) a rectifier in a d.c circuit
  B) an amplifier in d.c circuit
  C) an anplifier in an a.c circuit
  D) a rectifier in an a.c circuit
  Show Answer
  The correct answer is D .
• Question 1720: The gravitational field intensity at a location X, in space, is two-fifths of its value on the earth’s surface. If the weight of an object at X is 4.80N. what is its weight on the earth? Options:
  A) 1.92N
  B) 2.88N
  C) 6.72N
  D) 8.00N
  E) 12.00N
  Show Answer
  The correct answer is E .