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 1401: From the kinetic theory of gases, temperature is a Options:
  A) form of energy and is proportional to the total kinetic energy of the molecules
  B) form of energy and is proportional to the average kinetic energy of the molecules
  C) physical property and is proportional to the total kinetic energy of the molecules
  D) physical property and is proportional to the average kinetic energy of the molecules
  Show Answer
  The correct answer is D .
• Question 1402: A galvanometer with full-scale deflection of 10 mA is to be converted to a voltmeter with full-scale deflection of 5v. the resistance of the galvanometer is Options:
  A) 1Ω
  B) 2Ω
  C) 5Ω
  D) 10Ω
  Show Answer
  The correct answer is D .
• Question 1403: Which one of the following is a vector quantity? Options:
  A) Temperature gradient
  B) Mass
  C) Work
  D) Time
  Show Answer
  The correct answer is A .
• Question 1404: A metal has a work function of 3.0 eV. What is the threshold frequency of the metal when electrons are just liberated from the metal.(1 _eV = 1.6 × 10^-19J; h = 6.6 × 10^-34Js) Options:
  A) 4.8 × 10^-19Hz
  B) 9.3 × 10^-7Hz
  C) 4.8 × 10¹⁴Hz
  D) 7.3 × 10¹⁴Hz
  E) 9.3 × 10¹⁴Hz
  Show Answer
  The correct answer is D .
• Question 1405:

  

  A uniform light rod is kept in horizontal equilibrium under the influence of fore forces as shown above, which of the following equations correctly represents the condition of equilibrium for the rod

  Options:
  A) F1 + F2 = F3 + F4
  B) F1 + F2 - F3 + F = 0
  C) (F1 + F2)ab = (F3 + F4)cd
  D) F1a + F2b - F3c - F4d = 0
  Show Answer
  The correct answer is D .
• Question 1406: The specific latent heat of vaporization of a substance is always Options:
  A) less than its specific latent heat of fusion
  B) greater than its specific heat of fusion
  C) equal to its specific latent heat of fusion
  D) all of the above depending on the nature of the substance
  E) none of the above
  Show Answer
  The correct answer is B .
• Question 1407:

  The gravitational pull on the moon is $\frac{1}{6}$ that of the earth. If a body weighs 6.0 N on the moon,what will be the weight on the earth?

  Options:
  A) 6.0 N
  B) 5.0 N
  C) 12.0 N
  D) 36.0 N
  Show Answer
  The correct answer is D .
• Question 1408: A machine has an efficiency of 60%. If the machine is required to overcome a load of 30 N with a force of 20 N calculate its mechanical advantage? Options:
  A) 0.7
  B) 0.9
  C) 1.5
  D) 2.5
  E) 10.0
  Show Answer
  The correct answer is C .
• Question 1409:

  

  In the network shown above, determine the potential difference across the 5µF capacitor

  Options:
  A) 3V
  B) 6V
  C) 12V
  D) 18V
  Show Answer
  The correct answer is D .
• Question 1410: The quantity of heat needed to raise the temperature of a body by 1K is the body's Options:
  A) Heat capacity
  B) Internal energy
  C) Specific heat capacity
  D) Latent heat of fusion
  Show Answer
  The correct answer is A .