Heat Transfer
Chapter Name : Thermal Properties Of Matter |
Sub Topic Code : 101_11_11_09_04 |
Topic Name : Heat Transfer |
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Sub Topic Name : Radiation |
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Introduction
Heat is energy transferred from one body to another by thermal interactions.
Pre-Requisites:
Heat
Activity:
Sunlight.
Real Life Question:
What is Radiation?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Radiation | Thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Heat | Heat is energy transferred from one body to another by thermal interactions. |
Real life uses :
Radiation.
Places to visit :
Kitchen.
Practical examples around us
| Examples | Explainations |
|---|---|
| Radiation | The mechanism is that bodies with a temperature above absolute zero have atoms or molecules with kinetic energies which are changing, and these changes result in charge-acceleration and/or dipole oscillation of the charges that compose the atoms. |
What you learn in Theory:
Thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter. All matter with a temperature greater than absolute zero emits thermal radiation.
What you learn in Practice:
All matter with a temperature by definition is composed of particles which have kinetic energy, and which interact with each other.