Image file sizes
Authored by Stephen Langford
Information Technology (IT)
7th Grade
Used 5+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
To work out the file size for an image you need to know 3 things:
its width, its height, and its colour depth
What do you do with these 3 numbers to find the number of bits needed to store the image?
Add them
Multiply them
Divide them
Subtract them
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Work out the number of bits needed to store an image with these properties:
Width 30 pixels
Height 10 pixels
Colour depth 4
(a)
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Work out the number of bytes needed to store an image with these properties:
Width 50 pixels
Height 10 pixels
Colour depth 4
(a)
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Work out the number of bytes needed to store an image with these properties:
Width 160 pixels
Height 95 pixels
Colour depth 16
(a)
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Work out the number of bytes needed to store an image with these properties:
Width 2500 pixels
Height 1800 pixels
Colour depth 12
(a)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
275000 B
275 KB
0.275 MB
0.000275 GB
Answer explanation
The file size should be a number between 1 and 999, so 275 KB is the best option.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3800000 B
3800 KB
3.8 MB
0.0038 GB
Answer explanation
The file size should be a number between 1 and 999, so 3.8 MB is the best option.
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