PPM: physical properties & materials Flashcards

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1
Q

state the physical properties of ceramic

A

poor conductor of heat, hard, brittle, does not corrode, has a high melting point, can be moulded into shapes

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2
Q

state the physical properties of metal

A

shiny, good conductor of electricity and heat, can be moulded into shapes, can be bent without breaking

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3
Q

state the physical properties of glass

A

transparent, poor conductor of heat and non-conductor of electricity, can be moulded into shapes, brittle, has a high melting point

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4
Q

state the physical properties of plastic

A

does not corrode, lightweight, has a low melting point, poor conductor of heat, non-conductor of plastic, can be moulded into shapes

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5
Q

state the physical properties of fibres

A

can be spun into threads and woven into fabrics, and able to absorb dyes. poor conductor of heat and non-conductor of electricity

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5
Q

define electrical conductivity

A

the measure of how easily an electric current flows through it

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6
Q

define thermal conductivity

A

the measure of how easily heat flows through it

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7
Q

define melting point

A

the temperature at which a substance changes from the solid state to the liquid state

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8
Q

define boiling point

A

the temperature at which a substance changes from the liquid state to the gaseous state

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9
Q

define strength

A

the ability of a material to support a heavy load without changing its shape permanently

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10
Q

define hardness

A

the ability of a material to withstand scratches

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11
Q

define flexibility

A

the ability of a material to bend without breaking, and return to its initial shape and size after bending

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12
Q

define density

A

the amount of matter an object has in proportion to its volume

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