Which way does heat naturally flow?
AnswerFrom hotter objects to colder ones
Heat moves from high to low temperature.
Science · Facts & stats
Heat facts & stats
7 fact-checked facts about heat, temperature and thermodynamics, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What are the three main ways heat travels?
AnswerConduction, convection and radiation
Heat moves by contact, fluid movement and electromagnetic waves.
Going deeper
What is absolute zero in Celsius?
Answer-273.15 C
Absolute zero is 0 kelvin, or -273.15 C.
Why do metal spoons feel colder than wooden ones at the same temperature?
AnswerMetal conducts heat away from your hand faster
Good conductors pull heat from skin quickly.
What is the SI unit of temperature?
AnswerKelvin
The kelvin is the SI base unit of thermodynamic temperature.
Expert level
What does the first law of thermodynamics state?
AnswerEnergy cannot be created or destroyed
It is the law of conservation of energy.
What is 'latent heat'?
AnswerEnergy absorbed or released during a phase change without a temperature change
Melting ice absorbs latent heat while staying at 0 C.
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