Next-Gen

Heat Chapter

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by USAHA6
Last updated 3 years ago

Discipline:
Science
Subject:
Physics
Grade:
8,9,10,11,12

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Heat Chapter

IntroductionWhen heat is added to a body, various things can result:• expansion• increase in temperature• change of state• chemical changeThe first three of these are physical changes which we will look at in more details

The transfer of heat by conduction, convection and radiation is very important in our everyday lifewe should appreciate the flow of heat throught the three states of matter and vacuumthe fast flow of heat throught metals is applied in making cooking utensils

The principle of expansion and contraction of matter is applied in making instrutments that are used in our daily life Some of these instrutments are thermometers, rivets, metallis tyres, wheel axles and thermostats

SCIENCE

When heat is added to a solid, the particles gain energy and vibrate more vigorously about their fixed positions, forcing each other further apart. As a result expansion takes place. Similarly, the particles in a liquid or gas gain energy and are forced further apart. The degree of expansion depends on the substance.

Heat As A Form Of Energy

The Benefit Of Heat Flow

Application of Expansion and Contraction of Matter

THE EFFECTS OF HEAT ON MATTER

HEAT CHAPTER 7

Expansion

effect of heat on matter

Bimetallic Thermometers

Metal Bridges Roller


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