Communication and Waves

Front

What is the telegraph used for?

Back

The telegraph was used to communicate with family and friends from far away, using Morse Code.

Front

What does digital mean?

Back

Digital means data expressed as single digits, usually 0 and 1.

Front

Is music playing from a record an analog or digital signal?

Back

Analog.

Front

What does analog mean?

Back

Analog means smooth and continuous data.

Front

How do you write E in Morse Code?

Back

E is written as '.' in Morse Code.

Front

What is Morse Code?

Back

Morse Code is a method of encoding text characters as sequences of dots and dashes.

Front

What is a radio?

Back

A radio is a device that receives and transmits signals through electromagnetic waves.

Front

What is a telephone?

Back

A telephone is a device that converts sound into electrical signals for communication over distances.

Front

What is the difference between analog and digital signals?

Back

Analog signals are smooth and continuous, while digital signals are discrete and represented by binary data.

Front

What is an example of an analog device?

Back

An example of an analog device is a vinyl record player.