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WorksheetsInformation Transfer Practice
Total questions: 64
Worksheet time: 6hrs 59mins
What two things are used to form patterns representing letters and numbers in Morse code?
dots
dashes
colors
sounds
What two symbols do computers use to form patterns and code information?
0's
100's
1's
A's
B's
What are the THREE colors of light that make up pixels on a screen to create colors?
Blue
Green
Yellow
Red
Puple
Information is stored on CD's using holes burned with lasers.
true
false
How does a 3-D printer know what to print?
Instructions from the computer are sent to the printer as patterns of 1's and 0's
a photo is sent to the printer and the printer prints a picture that matches that photo
you upload a blueprint, the computer reads the blueprint then uses those instructions to print whatever was in the blueprint
What does a TV remote control send to the TV?
the channel you want to watch
dots and dashes that tell the TV what to do
patterns of light pulses
sound waves
Information is sent directly from one cell phone to another.
true
false
What was a key discovery in the advancement of early information transfer?
morse code
light bulb
newspapers
telephone
If you want to have a higher definition image, you need more of what?
dots
1's
electricity
pixels
Before information was transferred electronically, how did people share information? (Select all that apply)
Books
computers
newspapers
telephone
How does a television remote control send information to a television?
through a wire
light waves
microwaves
sound waves
Which camera would provide the highest quality image?
one with a large eyepiece
one with lots of pixels
one with a large screen
one with lots of storage
Emily sends a coded message by knocking on the wall. Jacob sends his coded message by turning a flashlight on and off. Their messages are shown in the table. Which statement describes the messages Emily and Jacob sent?
They sent different messages using different types of energy.
They sent the same message using the same type of energy.
They sent the same message using different types of energy.
They sent different messages using the same type of energy.
Kallie and DeAngelo are neighbors. At night they send messages to each other through their windows. Kallie uses her lamp, and DeAngelo uses a laser pointer. How are they communicating?
using binary code
using radio waves
using light waves
using sound waves
Crewless spaceships travel into deep space and send their findings back to Earth. Many carry cameras that take pictures. How are these pictures sent back to Earth?
Radio waves travel through space and are decoded into pixels.
The pictures are transmitted by sound wave.
The pictures are sent back on a spaceship to Earth.
Information is encoded and sent by electromagnetic waves.
Morse code is an alphabet where letters are represented by short and long signals of light or sound in a certain pattern.
Identify one strength and one weakness of using light to send Morse code.
Identify one strength and one weakness of using sound to send Morse code.
Enter your answers in the space below.
To use the Internet, computers have to be connected using either a cable or a wireless router.
Explain how information is transferred differently in these two technologies.
Enter your answers in the space below.
_______________ is the process of information being turned into a code and being moved from one place to another.
Binary code
Morse code
Information transfer
QR code
______________ is a code used to transfer information using only the digits 0 and 1 to represent a letter, number, or special character.
Bar code
Binary code
Morse code
QR code
____________ is a code used to transfer information using dots and dashes (long and short signals) to represent a letter, number or special character.
Bar code
Binary code
Morse code
QR code
___________ is a code that transfers information by using a pattern created in black squares on white background that is machine readable.
Binary code
Morse code
Bar code
QR code
________________ is a code that transfers information by using a machine to read widths and spacing of parallel lines.
Bar code
Binary code
Morse code
QR code
What is this a model of?
radio
doorbell
Morse code machine
ancient video game
Which two symbols do computers and other devices use today?
dots and dashes
1 and 2
A and B
0 and 1
The more pixels you have, the more ______ the image is.
clear
blurry
bright
dark
How are patterns of information stored on CDs?
lines
holes
magnets
colors
What component in a computer reads 1s and 0s?
screen
microchips
keyboard
touchpad
Which of these devices does NOT transfer information using patterns?
3D printer
toaster
remote control
phone
How can you tell a computer what to do?
computer coding
computer talking
computation
none of these
The invention of ________ allowed people to communicate over long distances using Morse code.
paper
trains
electricity
boats
a pattern of dots and dashes, each one making up a letter or number
Morse code
binary code
pixels
bits
How does a cell phone send a picture to another cell phone?
It changes the picture into text.
It sends the picture through sound waves.
It downloads the picture into light waves.
It codes the picture into digital information.
Digital devices use _____ to send and transmit information.
binary code
Morse code
pixels
bits
A remote (also called a transmitter) uses light to carry signals from the remote to the device it controls. It emits pulses of invisible infrared light that correspond to specific binary codes. These codes represent commands, such as power on, volume up, or channel down.
A remote control sends signals to a television through:
sound waves
wires
light waves
binary code
A clear, bright image has:
lots of pixels
very few pixels
lots of data
binary code
What invention made it possible to communicate across long distances with electricity and Morse code?
telephone
telegraph
television
Images are made of millions of tiny dots called:
Morse code
binary
bits
pixels
Cell phones convert sound waves into ____, which are sent from tower to tower.
light waves
sound waves
radio waves
Morse code
Which of the following graphs represents a digital wave?
Which of the following is an analog technology?
Which type of wave is best described as smooth and continuous?
analog
digital
both analog and digital
neither
When you send a text message to the friend, what happens first after you have typed your message?
the phone encodes the letters of your message using ones and zeros
the phone sends an analog wave representing your message to another phone
the phone produces an electromagnetic wave with constant amplitude and frequency
the phone decodes the zeros and ones and converts them into letters
Which of the following graphs represents an analog wave?
The picture shows an example of what kind of signal?
Analog
Digital
How do Fiber Optics work?
By connecting and transferring energy
By remitting and subtracting power from other fiber optics
By using light pulses to transfer data
By converting sound waves in to binary code
Which of these helps provide faster Internet connections?
mirrors
fiber optics
electricity
vision
