Metals

Which property allows metals to be hammered into thin sheets?

• Ductility

• Conductivity

• Malleability

• Luster

Metals are good conductors of electricity due to:

• High density

• Free-moving electrons

• Low melting points

• Magnetic properties

Which metal is liquid at room temperature?

• Mercury

• Aluminum

• Iron

• Gold

The ability of metals to be drawn into wires is called:

• Malleability

• Ductility

• Sonorousness

• Luster

Which metal is highly reactive and stored in oil?

• Gold

• Sodium

• Copper

• Silver

Aluminum is widely used in aircraft because it is:

• Heavy and strong

• Lightweight and corrosion-resistant

• Magnetic

• Radioactive

Copper is commonly used in electrical wiring due to its:

• High melting point

• Excellent conductivity

• Magnetic properties

• Low cost

Why is gold preferred for making jewelry?

• It reacts with oxygen

• It is non-reactive and doesn't tarnish

• It is brittle

• It is lightweight

Tungsten is used in light bulb filaments because of its:

• Low density

• High melting point

• Electrical insulation

• Magnetic properties

Zinc is often used to coat iron in a process called:

• Anodizing

• Galvanization

• Electroplating

• Smelting