
Image Representation Quiz
Authored by CSC Teachers
Computers
7th Grade
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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are bitmap images represented by the computer?
Binary
Vectors
ASCII
Unicode
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a pixel?
It is an animated object in a game that can move or collide with other objects
It is a single coloured 'dot' in a bitmap image
It is a pair of coordinates that tell the computer where to draw a point on the screen
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is image resolution?
It is the number of colours in an image
It is the amount of pixels per inch in an image (width by height)
It is a measure of how much an image has been compressed
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the 'colour depth'?
Is the amount of pixels per inch in an image (width by height)
Is the amount of bits used to generate the colour in a single pixel
The width of the image measured in pixels
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which compressed file format is often used for storing digital camera images?
JPG
SVG
BMP
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why would an image be compressed?
To increase its quality
To change the colours it contains
To make it smaller to store
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many colours can be used for each pixel if the colour depth is 8 bit?
8 colours
256 colours
255 colours
9 colours
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