THERMAL EXPANSION

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Presentation Transcript

THERMAL EXPANSION : 

THERMAL EXPANSION Change in the dimension(s) of a substance due to a change in temperature.

Factors affecting THERMAL EXPANSION : 

Factors affecting THERMAL EXPANSION TEMPERATURE Higher ?T, greater expansion KIND of MATERIAL Quantified by COEFFICIENT of THERMAL EXPANSION Higher ?, greater expansion ORIGINAL DIMENSION Greater original dimension (L, A or V), greater expansion

Slide 4: 

Change in dimension Coefficient of expansion Original length Change in temperature

Types of Expansion : 

Types of Expansion LINEAR EXPANSION

Types of Expansion… : 

Types of Expansion… AREA EXPANSION A0

Types of Expansion… : 

Types of Expansion… VOLUME EXPANSION OR

APPLICATIONS : 

APPLICATIONS

The Curious Case of ICE : 

The Curious Case of ICE Conceptually, matter expands when heated and contracts when cooled… …when matter contracts, it becomes denser…heavier, so to speak… …but why does ice float in water?

The Curious Case of Ice Continued… : 

The Curious Case of Ice Continued…

Still with the Curious Case of Ice… : 

Still with the Curious Case of Ice… Water at room temperature Water at freezing point

Comparison between MERCURY and ALCOHOL THERMOMETERs... : 

Comparison between MERCURY and ALCOHOL THERMOMETERs...

Continuation… : 

Continuation…