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Fundamental Thermodynamics Facts

Thermodynamics

Basic principles and everyday phenomena related to thermodynamics.

heat energy temperature laws

10 Questions Easy Ages 10+ Aug 9, 2026

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About this Study Set

This study set covers Thermodynamics through 10 practice questions. Basic principles and everyday phenomena related to thermodynamics. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 10 questions from the Fundamental Thermodynamics Facts study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the SI unit of temperature?

A Celsius
B Fahrenheit
C Kelvin
D Rankine

2 Which law of thermodynamics states that energy cannot be created or destroyed, only transferred or changed from one form to another?

A Zeroth Law
B First Law
C Second Law
D Third Law

3 What process involves the transfer of heat through direct contact?

A Convection
B Radiation
C Conduction
D Insulation

4 When a substance changes from a liquid to a gas, what type of phase transition is occurring?

A Melting
B Boiling
C Condensation
D Freezing

5 Which of the following best describes heat?

A The measure of the average kinetic energy of particles
B The measure of the total internal energy of a system
C The transfer of thermal energy between systems
D The resistance of a material to heat flow

6 The Second Law of Thermodynamics introduces the concept of:

A Conservation of energy
B Absolute zero
C Entropy
D Thermodynamic equilibrium

7 Which phenomenon is an example of heat transfer by convection?

A Sunlight warming your skin
B A hot pan heating a spoon
C Hot air rising from a radiator
D A fireplace radiating heat

8 What happens to the volume of most gases when they are heated at constant pressure?

A It decreases
B It stays the same
C It increases
D It evaporates

9 What is the point where a substance can no longer exist as a liquid, regardless of pressure?

A Melting point
B Boiling point
C Triple point
D Critical point

10 Which of the following has the highest thermal conductivity (transfers heat easily)?

A Wood
B Air
C Copper
D Plastic

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