Alloys

Steel generally speaking is made of

• iron and carbon

• copper and iron

• tin and carbon

• aluminum and nickel

Brass is an alloy made of

• copper and zinc

• copper and tin

• copper and nickel

• copper and aluminum

Bronze is an alloy made of

• aluminum and magnesium

• copper and tin

• lead and tin

• copper and nickel

All alloys are mixtures.

• True

• False

What do metals conduct well?

• heat

• electricity

• circulation

• music

a brittle material is one that

• will bend
• fractures under presure
• can be crushed easilly

Varying the amounts of additives added to iron changes the properties of the steel alloy created. The material properties which can be effected are ...

• hardness

• ductility

• tensile strength

• opacity

Tags

NGSS.HS-ETS1-3

Why are metals alloyed?

• To improve the appearance of a metal

• To make them less likely to corrode

• To reduce the amount of iron used

• To change the properties of the metal

Why are alloyed metals usually stronger?

• They have atoms of different metals in them, which makes it easier for the layer to move past each other...less likely to break

• They have atoms of different metals in them, which makes it harder for the layer to move past each other...less likely to break

Why is steel alloyed with other metals?

• To make It stronger

• To make it lighter

• To make it more resistant to corrosion

• All of the above