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 321: The principle of transmissibility of pressure in a fluid at rest in all directions is known as Options:
  A) Archimede's principle
  B) Flotation Principle
  C) Newton's lwa
  D) Pascal's law
  E) Boyle's law
  Show Answer
  The correct answer is D .
• Question 322: If an object is placed at a height of tem above the ground at a stationary point. It posses what types of energy? Options:
  A) Mechanical energy
  B) Stationary energy
  C) Potential energy
  D) Vibrational energy
  Show Answer
  The correct answer is C .
• Question 323:
  

  In the study of Physics, temperature and heat are often confused with each other. Which of the following statements correctly defines these two elements?

   

  Options:
  A) Temperature is a measure of the average kinetic energy of the molecules of a substance
  B) Heat is a measure of the total kinetic energy of the molecules in a system
  C) Different materials require different amounts of heat to cause a given change in temperature
  D) All of the above
  Show Answer
  The correct answer is D .
• Question 324:

  Cathode rays are

  Options:
  A) High-energy electromagnetic waves
  B) protons
  C) neutrons
  D) streams of electrons
  Show Answer
  The correct answer is D .
• Question 325:

  The half life of a radioactive material is 12 days. Calculate the decay constant.

  Options:
  A) 0.8663 $da{y}^{-1}$
  B) 0.04331 $da{y}^{-1}$
  C) 0.17325 $da{y}^{-1}$
  D) 0.05775 $da{y}^{-1}$
  Show Answer
  The correct answer is D .
• Question 326:

  The amount of heat needed to raise the temperature of 10kg of Copper by 1K is its

  Options:
  A) specific heat capacity
  B) latent heat
  C) heat capacity
  D) internal energy
  Show Answer
  The correct answer is A .
• Question 327:

  Which of the following obeys Ohm's law?

  Options:
  A) all metals
  B) diode only
  C) all electrolytes
  D) glass
  Show Answer
  The correct answer is A .
• Question 328: A well-lagged bar of length 100cm has its ends maintained at 100^oC and 40^oC respectively. What is the temperature at a point 60cm from the hotter end? Options:
  A) 58^oC
  B) 62^oC
  C) 64^oC
  D) 76^oC
  Show Answer
  The correct answer is D .
• Question 329:

  A 20-toothed gear wheel drives a 60-toothed one. If the angular speed of the smaller wheel is 120 rev s^-1, the angular speed of the larger wheel is

  Options:
  A) 3 rev s^-1
  B) 40 rev s^-1
  C) 360 rev s^-1
  D) 2400 rev s^-1
  Show Answer
  The correct answer is B .
• Question 330:

  When a water droplet is placed on a freshly cut piece of wood, it spreads out to form a thin layer because the wood is

  Options:
  A) not at equilibrium with the water
  B) cohesive to water
  C) at equilibrium with the water
  D) adhesive to water
  Show Answer
  The correct answer is D .