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- Dictionaryheat/hiːt/
noun
- 1. the quality of being hot; high temperature: "the fierce heat of the sun" Similar Opposite
- 2. intensity of feeling, especially of anger or excitement: "conciliation services are designed to take the heat out of disputes" Similar Opposite
verb
- 1. make or become hot or warm: "the room faces north and is difficult to heat" Similar Opposite
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As per the definition of heat, it is defined as the flow of energy from a warm to a cooler object. The direction of flow of the heat energy takes from the substance of higher temperature to the substance of lower temperature.
Mar 6, 2024 · Heat is the thermal energy transfer between systems or bodies due to a temperature difference. Thermal energy, in turn, is the kinetic energy of vibrating and colliding particles. Heat occurs spontaneously from a hotter body to a colder one.
James Clerk Maxwell in his 1871 Theory of Heat outlines four stipulations for the definition of heat: It is something which may be transferred from one body to another, according to the second law of thermodynamics. It is a measurable quantity, and so can be treated mathematically.
4 days ago · heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder.
HEAT definition: 1. the quality of being hot or warm, or the temperature of something: 2. the system that keeps a…. Learn more.
Scientists define heat as thermal energy transferred between two systems at different temperatures that come in contact. Heat is written with the symbol q or Q , and it has units of Joules ( J ).
1. a (1) : a condition of being hot : warmth. snow melting in the heat of the sun.
noun. a relatively high degree of warmth. Antonyms: coolness. the condition or quality of being hot: The heat of the oven will caramelize the natural sugars in the vegetables, enhancing their flavor. Synonyms: hotness, warmth. the degree of hotness; temperature: Heat is measured with a thermometer.
Mar 24, 2022 · What is it, where does it come from, and how does it move around our world? Let's find out more! Photo: Now that's what I call heat! The temperature of the SpaceX Falcon 9 space rocket exhaust you can see here is around 3000°C (5500°F) —hot enough to melt most everyday materials! Photo by Keegan Barber courtesy of NASA . Sponsored links.
Heat is the flow of thermal energy. A whole branch of physics, thermodynamics, deals with how heat is transferred between different systems and how work is done in the process (see the 1ˢᵗ law of thermodynamics ). In the context of mechanics problems, we are usually interested in the role thermal energy plays in ensuring conservation of energy.
