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Dishwasher physics

You may have noticed that dishwashers do not dry plastic materials well, unlike ceramic ones. This is due to the different physical properties of ceramics and plastics, which Peter Main explores

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The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.

The change in the amount of thermal energy an object stores depends on its specific heat capacity, the change in its temperature, and its mass. This means that the rate of cooling of items in a dishwasher is different for different materials, so that evaporation of water from objects, and their rates of drying, also differ.

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Colours of the sky

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Plate tectonics and Britain’s journey

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