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 2141: A man stands in front of a tall wall and produces a sound. If he receives the echo of the sound two seconds later, calculate his distance from the wall. (The speed of sound in air is 330ms^-1) Options:
  A) 600m
  B) 400m
  C) 330m
  D) 328m
  E) 165m
  Show Answer
  The correct answer is C .
• Question 2142:

  Which of the following instruments consumes the highest current?

  I. Electric iron II. Television set III. Torch light IV. Immersion heater

  250v 220v 6v 110v

  1kW 110W 30W 500W

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is C .
• Question 2143: The areas of the effort and load pistons of a hydraulic press are 0.5m² and 5m² respectively. If a force F₁ of 100N is applied on the effort piston, the force F₂ on the load is Options:
  A) 10N
  B) 100N
  C) 500N
  D) 1000N
  E) 5000N
  Show Answer
  The correct answer is D .
• Question 2144: A motor boy of a driver saw what seem to appear to be a pool of water a head of him, while his driver’s drives a new truck on a funny day. Which of the following explains his observation? Options:
  A) He saw a flying objects
  B) He must be thinking of water and food
  C) He was seeing the shadow of the car
  D) The sun ray from the sky were passing from a hot air (layer) to cold layer
  Show Answer
  The correct answer is D .
• Question 2145: Which of the following eye defects can be corrected using a cylindrical lens. Options:
  A) myopia
  B) Astigmatism
  C) Presbyopia
  D) Chromatic abiration
  Show Answer
  The correct answer is B .
• Question 2146:

  

  The current I in the fig above is

  Options:
  A) 4.00A
  B) 1.30A
  C) 0.80A
  D) 0.75A
  Show Answer
  The correct answer is A .
• Question 2147:

  The time rate of loss of heat by a body is proportional to the

  Options:
  A) temperature of its surroundings
  B) temperature of the body
  C) difference in temperature between the body and its surroundings
  D) ratio of the temperature of the body to that of its surroundings
  Show Answer
  The correct answer is C .
• Question 2148: A constant force of %n acts for a % seconds on a mass of 5kg initially at rest. Calculate the final momentum Options:
  A) 125kgms−1
  B) 25kgms−1
  C) 15kgms−1
  D) 0kgms−1
  Show Answer
  The correct answer is B .
• Question 2149: A sonometer wire of length 100cm under a tension of 10N, has a frequency of 250Hz. Keeping the length of the wire constant, the tension is adjusted to produce a new frequency of 350Hz. The new tension is Options:
  A) 5.1N
  B) 7.1N
  C) 14.0N
  D) 19.6N
  Show Answer
  The correct answer is D .
• Question 2150:

  A bar magnet is divided into two pieces, which of the following statement is correct?

  Options:
  A) two new magnets are created
  B) the magnetic field of each separate piece becomes stronger
  C) the electric field is created
  D) the bar magnet is demagnetized
  Show Answer
  The correct answer is A .