Communication and Signal Quiz

What is communication?

• The sharing of information between people

• The process of encoding and decoding information

• The use of electromagnetic waves to transmit data

• The process of modulating a carrier wave

What is a signal?

• Anything that can transmit information

• A type of electromagnetic wave

• A method of encoding information

• A device used for communication

What is encoding?

• The process of transmitting information over long distances

• The process of interpreting information in a message

• The process of agreeing on what a signal means

• The process of modulating a carrier wave

What is decoding?

• The process of transmitting information over long distances

• The process of interpreting information in a message

• The process of agreeing on what a signal means

• The process of modulating a carrier wave

What is Morse code?

• A method of encoding information using combinations of pulses

• A type of electromagnetic wave

• A device used for communication

• A process of modulating a carrier wave

What are the advantages of electromagnetic waves?

• They can carry different types of information

• They can travel at the speed of light

• They can be modified to carry information

• All of the above

What is modulation?

• The process of transmitting information over long distances

• The process of interpreting information in a message

• The process of agreeing on what a signal means

• The process of varying a property of a wave to encode information

What types of waves can radios decode?

• AM waves

• FM waves

• Both AM and FM waves

• Neither AM nor FM waves

What is the difference between analog and digital signals?

• Analog signals are continuous, while digital signals are not

• Analog signals are faster than digital signals

• Analog signals can carry more types of information than digital signals

• Analog signals can be easily encoded and decoded by computers

How are analog signals encoded?

• By changing the amplitude of the carrier wave

• By changing the frequency of the carrier wave

• By changing the wavelength of the carrier wave

• By changing the speed of the carrier wave