steel gas
low density,corrosion resistant,highstrength, low friction
low density,corrosion resistant,highstrength, low friction
material's performance depends on its physical properties
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physical properties
All material objects have physical properties.
The physical properties of materials are not invented, they are intrinsic, natural, specific characteristics of any material.
Lead is classified as a metal. it has luster, it has high density, it has a low melting point (compared to other metals), it is toxic, it is hard, it is strong (but not a good building material) and is a dull gray in color.
there are 4 main types of physical properties 1. Appearance 2. luster 3.Density 4.colour
the chemical properties of timber tell us about the chemical composition of tree material and physical properties tell us about the apperence and color of the timber
characteristics or chemical and physical properties
The physical properties of scissors is determined by the material they are made of and the style of the scissors. Some scissors are pointed and some have round, blunt ends.