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WorksheetsStored Data: CF
Total questions: 65
Worksheet time: 1hrs 2mins
What number system do computers use to store all data?
Decimal
Hexadecimal
Binary
ASCII
Why does a computer use only 0s and 1s?
Because humans like small numbers
Because circuits only have ON and OFF states
Because it is easier to read
Because letters require only two digits
What happens to a binary number when the decimal number increases?
It gets shorter
It stays the same
It becomes random
It usually gets longer
ASCII is a system used to represent:
Images
Letters and characters
RGB colors
Sounds
In ASCII, the computer stores letters as:
Numbers
Images
Sounds
Binary codes
Which format are ASCII characters ultimately stored in?
Pictures
RGB values
Binary numbers
Hex codes
Which sequence represents binary?
23AF6
101101
239, 103, 3
Blue
Which of the following is true about binary?
It uses digits 0–9
It uses digits 0–1
It uses letters A–F
It is used only for colors
What does ASCII stand for?
American Standard Code for Information Interchange
Advanced Storage Code for Internet Information
Automated Symbol Code for Image Input
American Symbol Conversion for Internal Input
The decimal value 65 corresponds to which ASCII character?
B
a
A
Z
Which statement best describes binary?
A type of image
A color model for screens
The fundamental language of computers
A file format
More bits in binary allow a computer to:
Display fewer colors
Store more information
Delete files faster
Improve WiFi
What does each 1 or 0 represent inside a computer?
A pixel
A sound wave
ON or OFF electricity
A color
Which tool allows students to convert ASCII to binary?
A calculator
A binary converter tool
A text editor
A programming language
Which tool is used to convert ASCII/Binary values?
PixilArt
Google Color Picker
ASCII/Binary Converter
Coolors
The ASCII value for a letter changes when:
You zoom in
You pick a new color
You type a different character
You save as PNG
What does RGB stand for?
Real Good Blue
Red, Green, Blue
Random Graphic Bits
Render, Generate, Blend
RGB values range between:
0–10
0–100
0–255
0–1000
RGB(0, 0, 0) represents:
Yellow
Red
Black
RGB(255, 255, 255) represents:
Blue
Magenta
Dark gray
White
When only Red is high and the others are low, the color appears:
Greenish
Bluish
Reddish
Gray
A pixel is:
The entire screen
The smallest dot that displays a color
The name of the computer’s storage
A type of file
Each pixel stores:
Only an image
Only text
One color
A full photo
A pixel’s color is determined by:
ASCII
Weather
RGB values
File type
Images become “blocky” when zoomed in because:
The computer deletes colors
Pixels become visible
The RGB values change
The file compresses
Many tiny pixels together create:
Sharp, smooth images
Larger binary files
Data errors
Only black and white photos
Changing RGB values changes:
File type
Color on screen
Zoom level
Website speed
A cool color might include:
Red
Orange
Yellow
Blue
A warm color might include:
Cyan
Blue
Red
Teal
The purpose of the RGB mixer tool is to:
Change file types
Create spreadsheets
Observe color mixing
Compress images
If RGB = (120, 120, 120), the color is:
Very bright
Very dark
A shade of gray
Pure red
Pixel art works best when:
The image contains tiny details
The pixels are large and visible
Only blue is used
It is saved as a PDF
A 16x16 pixel art image contains:
16 pixels
32 pixels
256 pixels
1600 pixels
Zooming in many times on a photo reveals:
Hex numbers
Pixels
File compression
Audio signals
The final color of a pixel is determined by:
Only the red value
Binary + RGB
The file name
ASCII
Digital images are stored as:
Grids of colored pixels
Hand-drawn pictures
MP3 files
ZIP folders
Hex color codes begin with:
&
#
@
*
Which of the following is a hex code?
(255, 103, 3)
#EF6703
10101010
A+ Green
The hex code #EF6703 matches the color:
Red
Green
Brown
Orange
Which RGB code represents the color RGB(239, 103, 3)?
RGB(255, 255, 255)
RGB(0, 0, 0)
RGB(239, 103, 3)
RGB(67, 239, 3)
Hexadecimal uses which digits/letters?
0–9 only
A–Z only
0–9 and A–F
A–F and G–Z
What does "EF" in the code #EF6703 represent?
Blue
Green
Red
Transparency
Hexadecimal is based on which numerical system?
Base-2
Base-10
Base-16
Base-60
Why do designers use hex codes?
They make files smaller
They are shorter and consistent
They require less electricity
They work only on Apple devices
Why must Northrop use exact hex codes for branding?
To impress students
To avoid having slightly different oranges
To reduce file sizes
To ensure compatibility with Apple devices
Why is hex commonly used for colors in design?
Because hex is more fun
Because printers only use hex
Because hex provides consistent colors
Because hex is easier to remember
What happens if every designer guesses the school orange?
Everything will match perfectly
Every orange may look different
Websites load slower
Files become PNGs
Hex values correspond directly to:
ASCII letters
RGB decimal values
File size
Pixels per inch
Hex codes are commonly used in:
HTML and CSS
MP3 players
WiFi routers
Text editors only
Which is the correct structure of a hex code?
#RRGGBB
#RGBRGB
##FFAA99
R255G255B255
What does #000000 represent?
Bright yellow
White
Black
Red
What does #FFFFFF represent?
Dark purple
White
Light blue
Brown
What do Hex and RGB both represent?
Different colors
The same color in different formats
Audio
ASCII codes
Which image format usually supports transparency?
JPG
PNG
GIF
WEBP
Which file type is usually lossy?
PNG
JPG
ZIP
BMP
What does lossless compression mean?
Data is permanently removed
Data can be perfectly restored
Colors become brighter
Files turn black and white
Lossy compression removes:
Essential details
All pixels
Unnecessary visual information
File names
Websites use compressed images because:
They look worse
They load faster
They break pixels
They use ASCII
PNG files are preferred for logos because:
They always look blurry
They compress text badly
They preserve sharp edges
They only use red pixels
A file that is 1200×675 refers to:
File size
Pixel dimensions
Binary values
Hex code length
A 150 KB image refers to:
Image width
File storage size
Color count
Monitor type
THE BASE OF _____________ SYSTEM IS 10
DECIMAL
BINARY
HEXA DECIMAL
OCTAL
The binary number system uses___numbers
one
two
three
four
What numbers are used in the binary number system?
0-10
0-15
0-1
0-5
________________ NUMBER SYSTEM IS UNDERSTOOD BY THE COMPUTER SYSTEM.
BINARY
HEXA DECIMAL
DECIMAL
OCTAL
