Q3W9 Early comm Quiz

Why were smoke signals and fire used as early forms of communication?

• They were easy to see in clear skies.

• They worked well at night, even in the rain.

• They could carry sounds over long distances.

• They were as fast as sending a letter.

What was one big problem with using smoke signals?

• They were too expensive to use.

• They needed clear skies to work.

• They made too much noise.

• They could only be used underwater.

Letters were sometimes unreliable in the past because:

• They could get lost or delayed.

• They were made out of fragile paper.

• They always needed electricity to send.

• They were too heavy to carry.

Which two senses do we mainly use to process information?

• Touch and taste

• Smell and sight

• Sight and hearing

• Smell and touch

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What invention made sending messages faster in the 1800s?

• The telegraph

• Smoke signals

• The radio

• Sonar

What did people use to send messages through the telegraph?

• Long letters

• Dots and dashes (Morse code)

• Recorded voices

• Waves of light

What is sonar used for?

• Finding underwater objects

• Sending messages through the air

• Communicating with smoke signals

• Listening to music

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How does a radio send information?

• By flashing bright lights

• By sending sound waves through the air

• By writing down messages

• By using water to carry signals

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Which of these is true about Morse code?

• It is a type of written language.

• It uses dots and dashes to represent letters and numbers.

• It can only be used with radios.

• It is the same as sign language.

Why was Morse code important for communication?

• It was easy to learn and understand for everyone.

• It allowed messages to be sent quickly over long distances.

• It didn’t need any equipment to use.

• It replaced all other forms of communication.