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Flip to reveal answersWhat is a physical property?
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All 4 Flashcards — Physical properties
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Question
What is a physical property?
Answer
One that can be measured or observed without the material changing in any way.
Question
Name the six physical properties in the guide.
Answer
Density, thermal expansion, thermal conductivity, melting point, electrical resistivity and electrical conductivity.
Question
Define density.
Answer
Mass per unit volume, in kg/m³ or g/cm³. It decides how heavy a product is for its size.
Question
Give one design consequence of thermal expansion.
Answer
Bridges need expansion joints; a metal lid on a glass jar loosens under hot water; two bonded materials with different expansion rates warp or crack.
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Topic 3.1 hub
Material classification
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