Ch. 8 L. 2 Metals and Alloys

What do metals conduct well?

• heat

• electricity

• circulation

• music

Some metals can look shiny when you

• polish them.

• melt them.

• wash them.

• bury them.

All metal elements melt at the same boiling point.

• True

• False

What can act as an insulator, preventing the movement, of electricity?

• glass

• wood

• rubber

• copper

What do you measure of a metal when you dent it?

• hardness

• cleavage

• luster

• streak

Which of the following conductors are used because they are readily available so they are cheap to use?

• gold

• silver

• copper

• aluminum

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Why is it dangerous to use this power cord?

• The exposed metal wire can electrocute you if it is active.

• The rubber can cut you.

• Since the metal is exposed to air, it does not work.

How do metal fins help motorcycles operate, or work?

• The fins draws heat away from the engine so it doesn't overheat.

• The fins improve the motorcycle's aerodynamics.

• The fins add heat to the engine to make more power.

• The fins act as an insulator to keep the engine really hot.

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Malleable is when a metal

• can be rolled or pounded into flat sheets.

• can be drawn out into strands of wire.

Metal is ductile when it

• can be rolled or pounded into flat sheets.

• can be drawn out into strands of wire.