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Fundamentals of Thermodynamics

Physics

A collection of introductory questions covering the laws of thermodynamics, heat transfer, and energy states.

thermodynamics heat energy physics
10 Questions Easy Ages 14+ Oct 10, 2026
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About this Study Set

This study set covers Physics through 10 practice questions. A collection of introductory questions covering the laws of thermodynamics, heat transfer, and energy states. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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1 What is the standard SI unit used to measure heat energy?
  • A Watt
  • B Joule
  • C Pascal
  • D Ampere
2 Which law of thermodynamics states that energy cannot be created or destroyed, only transformed?
  • A First Law
  • B Second Law
  • C Third Law
  • D Zeroth Law
3 What term describes the transfer of heat through direct contact between materials?
  • A Convection
  • B Radiation
  • C Conduction
  • D Insulation
4 Absolute zero is the theoretical temperature at which molecular motion ceases. What is its value in Kelvin?
  • A 0 K
  • B 273 K
  • C 100 K
  • D 373 K
5 In which direction does heat naturally flow between two objects of different temperatures?
  • A From cold to hot
  • B From hot to cold
  • C It does not flow
  • D Only in a vacuum
6 What is the primary method of heat transfer through a vacuum, such as sunlight reaching Earth?
  • A Conduction
  • B Convection
  • C Radiation
  • D Diffusion
7 Which property of a substance determines how much heat is required to raise its temperature by one degree Celsius?
  • A Density
  • B Thermal Conductivity
  • C Specific Heat Capacity
  • D Volume
8 When a substance changes from a solid to a liquid, the process is known as:
  • A Condensation
  • B Freezing
  • C Melting
  • D Sublimation
9 What device is commonly used to measure the amount of heat involved in a chemical or physical process?
  • A Barometer
  • B Calorimeter
  • C Thermometer
  • D Voltmeter
10 Which state of matter typically undergoes the most significant expansion when heated?
  • A Solid
  • B Liquid
  • C Gas
  • D Plasma
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