Share How Information Is Transferred - Review
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Why do people use codes to send information?
Codes are only for computers
Codes help send messages clearly and quickly
Codes look cool
Codes make messages longer
Which is an example of sending information with light?
Flashing a flashlight on and off
Talking to a friend
Playing the drums
Blowing a whistle
A pattern of long and short beeps is used to send a message. What is this an example of?
Information transfer
A picture
Reflection
A type of matter
A digital picture is made from many tiny squares. What are those squares called?
Codes
Pixels
Signals
Pictures
Which signal is easiest for a computer to understand?
a pattern of 1's and 0's
a spoken sentence
a sound made by a drum
a picture drawn by hand
When you send a text message, what type of information is being used
digital information
potential energy
food energy
heat energy
A lighthouse uses a bright light that flashes in a pattern. Why?
to follow the weather
to measure the waves
to transfer information to ships
to cook food for sailors
Which is an example of sound being used to transfer information?
A bird singing to warn others of danger
rain falling on a roof
shadows changing during the day
a photo on a phone
Why are patterns important for sending information?
Patterns help messages stay secret
Patterns are only for art
Patterns help people know what the message means
Patterns make messages longer
If you clap your hands to tell your friend "I'm ready," what are you using?
a chemical reaction
digital information
a sound pattern
heat energy
Which of the following is an example of information being transferred with light?
A blinking bike light
A drum beat
A person running
A book on a table
Which is an example of digital information?
a hand-drawn picture
A message made of 1s and 0s
a written letter
a drum beat
A pictograph shows information using:
electricity
letters
shadows
pictures or symbols
Which example shows information transfer using sound?
a light turning red
a picture on a screen
a shadow moving
a cat meowing for food
When a computer screen shows an image, the image is made of many:
wires
signals
waves
pixels
What does "signal" mean?
something that carries information
something that only makes noise
a picture of a person
a type of food
