Ceramics

What does 'brittle' mean?

• Soft
• Easily breakable
• Easily bendable
• Tough

When were ceramics first used?

• 20,000 years ago
• 100 BC
• 20,000 BC
• 24,000 BC

Which of these properties do ceramics possess?

• Light
• Very fragile
• Strong hardness
• Flexible

Ceramics also have a chemical inertness. What does this mean?

• They do not react with chemicals.
• They react strongly with chemicals.
• They only react with reactive elements.
• They react sometimes with chemicals.

What chemical bonds are involved in ceramics?

• Hydrogen bonds
• Metallic bonds
• Covalent or ionic bonds
• Carbon bonds

What is a disadvantage of ceramics?

• Ceramics are tough. 
• Clay is easy to obtain.
• They can be painted.
• They can fracture easily.

The density of ceramics is...

• Low
• High

Because of their strong bonds, ceramics are...

• Electrically resistant
• Elastic
• Heat resistant
• Magnetic

Are ceramics...

• Good insulators
• Good conductors

Which of these objects is a ceramic?

• Brick
• Pylon
• Water bottle
• Tarmac

Tags

NGSS.HS-PS2-6