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Sunday, 16 August 2026
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Physics Past Questions and Answers

Topic: Heat as a form of energy

Jamb Physics Questions - Heat as a form of energy

Question 11:
The following are some units
I. Ns
II. Non
III. Nm\(^{-2}\)
IV. J°K\(^{-1}\)
V. JKj\(^{-1}\)
What are the units of latent heat?
  • A I
  • B II
  • C III
  • D V
View Answer & Explanation
Question 12:
Heat may be transferred by conduction, convention and radiation. By which of these methods does heat travel through vacuum?
  • A Conduction only
  • B Convection only
  • C Radiation only
  • D All these methods
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Question 13:
A piece of substance of specific heat capacity 450Jkg\(^{-1}\)k\(^{1}\) falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms\(^{-2}\)]
  • A \(\frac{2}{9}\)ºC
  • B \(\frac{4}{9}\)ºC
  • C \(\frac{9}{2}\)ºC
  • D \(\frac{9}{4}\)ºC
View Answer & Explanation