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 1051:

  A rectangular solid black has length 10cm, breadth 5cm and height 2cm. If it lies on a horizontal surface, and has density 100kg/m${}^3$, calculate the pressure it exerts on the surface.

  Options:
  A) 200 N/m${}^2$
  B) 100 N/m${}^2$
  C) 400 N/m${}^2$
  D) 300 N/m${}^2$
  Show Answer
  The correct answer is A .
• Question 1052: In an experiment to determine terminal velocity, as the pressure increases, the viscosity off a liquid Options:
  A) increases
  B) decreases
  C) increases then decreases
  D) remains constant
  Show Answer
  The correct answer is D .
• Question 1053: When taking a penalty kick, a footballer applies a force of 30.0N for a period of 0.05s. if the mass of the ball is 0.075kg, calculate the speed with which the ball moves off. Options:
  A) 4.50ms^-1
  B) 11.25ms^-1
  C) 20.00ms^-1
  D) 45.00ms^-1
  Show Answer
  The correct answer is C .
• Question 1054:
  

  On a particular hot day, the temperature is 40°C and the partial pressure of water vapor in the air is 38.8 mmHg. What is the relative humidity?

  Options:
  A) 70
  B) 62
  C) 80
  D) 42
  Show Answer
  The correct answer is A .
• Question 1055: The absolute temperature of a perfect gas is proportional to the average Options:
  A) potential energy of the molecules
  B) seperation between the molecules
  C) kinetic energy of the molecules
  D) velocity of the molecules
  Show Answer
  The correct answer is C .
• Question 1056: A body rolls down a slope from a height of 100m. its velocity at the foot of the slope is 20ms^-1. What percentage of its initial potential energy is converted into kinetic energy? [g = 10ms^-1] Options:
  A) 40%
  B) 35%
  C) 20%
  D) 15%
  Show Answer
  The correct answer is C .
• Question 1057: 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 .
• Question 1058: In a resonance tube experiment, the effective length of the air column for the first resonance is 20cm when set into vibration by a tuning fork of frequency 480Hz. Neglecting and effect, the velocity of sound in air is Options:
  A) 96ms^-1
  B) 255ms^-1
  C) 340ms^-1
  D) 384ms^-1
  Show Answer
  The correct answer is D .
• Question 1059: The latent heat of fusion of a substance is the heat required to Options:
  A) raise the temperature of unit mass of the substance by 1 ^oC
  B) maintain unit mass of the substance at constant temperature
  C) change unit mass of substance from solid to liquid at constant temperature
  D) change unit mass of liquid to vapour at constant temperature
  E) raise the temperature of unit mass by 100^oC
  Show Answer
  The correct answer is C .
• Question 1060: Which of the following correctly, describes the image of an object, 4cm from a diverging lens of focal length 12cm? Options:
  A) The image is virtual, 3cm in front of the lens
  B) The image is real, 6cm behind the lens
  C) The image is virtual, 6cm in front of the lens
  D) The image is real, 3cm in front the lens
  Show Answer
  The correct answer is A .