Metals, Non Metals, Alloys, Acids and Alkalis Unit Quiz

Which property of metals makes them useful for making pots and pans?

• • Low boiling point

• • Conducts heat

• • Brittle when dropped

• • Dull appearance

A material that is shiny, can be drawn into wires, and makes a ringing sound when struck is likely:

• • A gas

• • A metal

• • A non-metal

• • An alloy

Why are non-metals usually poor conductors of heat?

• • Their particles are packed tightly together

• • They are shiny and brittle

• • They have a high melting point

• • Their particles are loosely arranged

What property would you test to identify if an object is made of a non-metal?

• • Malleability

• • Heat conductivity

• • Brittleness

• • High boiling point

A substance that is used for insulating electrical wires is most likely:

• • A metal

• • A non-metal

• • An alloy

• • A conductor

Coins are often made from alloys rather than pure metals because:

• • Pure metals are too expensive

• • Alloys are less durable

• • Alloys are cheaper and harder

• • Pure metals are lighter

If you wanted to make an object that was light and strong, you would likely use:

• • A pure metal

• • A non-metal

• • An alloy

• • A brittle substance

What makes alloys different from pure metals?

• • Their particles are arranged in a perfect order

• • They contain different sized atoms

• • They are always heavier than pure metals

• • They cannot conduct electricity

Bronze, which is an alloy of copper and tin, is used in making statues because:

• • It is lighter than copper

• • It is harder and resists corrosion

• • It conducts electricity better

• • It is more brittle than copper

Which property of acids makes them able to "eat away" materials like metal and skin?

• Corrosive

• Neutral

• Diluted

• Harmful