Thermal insulators
Lesson 3 / 8
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I can use the idea of vibrating particles to explain why wrapping an object in a thermal insulator keeps a hot object warm and a cold object cool.
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Particle vibrations are passed on more quickly between a hot object and conductor than a hot object and an insulator.
Materials that contain trapped air provide good insulation because gases are very poor thermal conductors.
Wrapping an object in an insulator keeps a hot object warm and a cold object cool.
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