Heat- Introduction

Heat- Introduction

In this Lesson, We will learn about->

* What is Heat

* Temperature

* Thermal Equilibrium

Heat

• What is Heat?

• Have you seen the sun? It emits Light. How does it emit its light?

• Have you tried touching a lit bulb? You hands feel its hotness, and Thus you remmove it from the bulb

• This energy which does work and helps in emitting light is HEAT

• The degree of the hotness itself is Temperature.

Thermal Equilibrium

• Lets say an object A is hotter than Object B

• What Happens?

• The heat flows from A to B. But later it stops.

• Then at that moment, the temperature in Objects A and B are equal

• THUS

• An object with more heat than another, will result in a flow of heat from the GREATER temperature to the LOWER temperature

• If the temperatures of 2 bodies are EQUAL, We say that they are in THERMAL EQUILIBRIUM

Meaures of temperatures

• There are 3 Measures of temperates

• They are: Celsius (°C), Fahrenheit (°F) and Kelvin (K)

• KELVIN is the Standard Unit

• The Boiling Point of WATER in the measures is: 100 °C, 212 °F & 373 K

• The Melting Point of WATER in the measures is: 0 °C, 32 °F & 273 K

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In this lesson, we have leant Heat, Its Balance and Temperature.