Components of a relay switch Whiteboard exercise Play

Construction of a relay switch Animation Play

Electromagnets Student activity Play

How sound travels Student activity Play

Operation of an electric bell Animation Play

Other properties of metals Student activity Play

Production of a bell Whiteboard exercise Play

Properties of metal objects Whiteboard exercise Play

Properties of non-metals Class activity Play

Statements about sound travel Whiteboard exercise Play

The electric bell Student activity Play

The relay switch Student activity Play

Vibration Student activity Play

What happens when electric bell is operated Whiteboard exercise Play