Metal Alloys

Alloy that can be used for jewellery, machine bearings, and door furniture

• brass

• bronze

• pewter

• duralumin

Why do jewelers not create jewelry with pure gold, silver, or copper?

• It is a soft metal, so it will rub or scratch away over time.

• It will not be shiny.

• It is impossible to find a pure form of these metals.

• It is too hard to shape into a design.

Define alloys

• Metals

• Mixture of two or more elements

• A group of non-metals

• Carbon compound

What makes steels

• Iron + steels

• Iron + carbon

• Iron + antimony

• Iron + iron3

• Iron + vanadium

Tags

NGSS.MS-PS1-5

Bronze is an alloy made of

• aluminum and magnesium

• copper and tin

• lead and tin

• copper and nickel

‘Bronze is harder than copper’. Which of the following is the best to explain the statement?

• Atoms in bronze are arranged closely packed and less empty spaces.

• Layers of atoms in bronze are not easily slide over each other.

• Atomic size of copper and tin is different.

• Bronze is a mixture of copper and tin

Which of the following is an alloy commonly used in aircraft manufacturing?

• Brass

• Bronze

• Duralumin

• Pewter

What is the primary reason for using alloys instead of pure metals in construction?

• Alloys are more expensive

• Alloys are more aesthetically pleasing

• Alloys have enhanced properties like strength and corrosion resistance

• Alloys are easier to recycle

Stainless steel is an alloy primarily composed of iron and which other element?

• Carbon

• Chromium

• Nickel

• Tin

Which alloy is known for its use in making musical instruments like trumpets and trombones?

• Brass

• Bronze

• Steel

• Duralumin