Telecommunication Quiz for Grade 7

What type of communication device relies on a network of towers to transmit signals?

• Telephone

• Radio

• Satellite

• Cell phone

Which inventor is known for developing Morse code?

• Alexander Graham Bell

• Thomas Edison

• Samuel Morse

• Guglielmo Marconi

Which type of modulation alters the frequency of the carrier wave to transmit information?

• Amplitude modulation

• Frequency modulation

• Phase modulation

• Pulse modulation

What is the primary purpose of modulation in telecommunications?

• To increase the volume of sound

• To convert digital signals to analog signals

• To encrypt messages

• To connect to the internet

Who is credited with inventing the telegraph?

• Alexander Graham Bell

• Thomas Edison

• Samuel Morse

• Nikola Tesla

What invention allowed for the transmission of moving images and sound over long distances?

• Telegraph

• Telephone

• Radio

• Television

Which inventor is known for the invention of the first practical telephone?

• Alexander Graham Bell

• Thomas Edison

• Samuel Morse

• Guglielmo Marconi

What device converts one form of energy into another in telecommunication systems?

• Transmitter

• Transducer

• Receiver

• Modulator

What technology allows for the transmission of television signals through the air?

• Satellite

• Radio

• Television

• Morse code

Which communication tool orbits the Earth and is used for various purposes such as broadcasting and weather forecasting?

• Satellite

• Telephone

• Radio

• Television