4.7 Information Transfer

What is the system of communication that involves an alphabet in which letters are represented by combinations of long and short signals of light or sound?

• Email

• Morse code

• Binary code

• Digital Signal Reception

. - . . - - - . . . - .
Morse code is a system of dashes and dots to represent the alphabet. What is spelled above using morse code?

• Food

• Love

• Pair

• Year

Morse code is a system of dashes and dots to represent the alphabet. How would you use the system to signal APPLE?

• . - - . . . - - - . . .

• .- .--. - - - . - . . .

• .- .--. .- - . . - . . .

• . . . - - - . . . - - - . . .

Examine the cereal box. Select the part of this cereal box used by a store employee to transmit information into the store's computer.

• location A

• location B

• location C

• location D

What two things are used to form patterns representing letters and numbers in Morse code?

• long beeps and short beeps

• Ones and Zeros

• L's and O's

• tiny holes called pixels

What are the three colors of the light that make up pixels on a screen to create colors?

• Red, Blue, Green

• Red, Yellow, Green

• Pink, Blue, Green

• Red, Blue, Yellow

True or False: 10,000 pixels are better than 1,000 pixels.

• True

• False

If you want to have a higher definition image, you need more of what?

• dots

• 1s

• electricity

• pixels

Before information was transferred electronically how did people share information?

• Yelling, using a horn, carrier pigeon

• A messenger horse

• sending a text message

Pixels

• Tiny lights that make up the screens of our devices which can be turned on and off to form an image.

• 1. A series of repeating events. 

• 1. The brains of electronic devices. Microchips send and receive patterns that help our electronics work.

• 1. To convert a code into something people can understand.