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Worksheets9.1 Image representation (with mixed)
Total questions: 19
Worksheet time: 16mins
Resolution is the number of pixels in an image, what is the resolution of this image?
8 pixels
32 pixels
64 pixels
2 pixels
What is the colour depth of this image
2 colours
4 colours
64 colours
3 colours
A higher quality image means it takes storage space and time to download. kk
(a) (b)
This image consists of individual elements. What are they called?
(a)
The technical specifications of your new phone report that it has an 8-megapixel camera. What does that mean?
It takes pictures that consist of 8 big pixels.
It takes pictures that consist of 8 thousand pixels.
It takes pictures that consist of 8 million pixels.
It takes pictures that are 8 megabytes in size.
Select the definition that you find most appropriate for the resolution of an image:
How ‘sharp’ the image is
How many pixels the image consists of
How many different colours there are in the image
How many binary digits are used to represent the colour of each pixel
How many binary digits are used to represent the image
For each of these scenarios below, which ones would use high-resolution images?
Printing photographs on paper
Keeping an archive of images on a storage device with limited capacity
Selecting images to be used on a website; it’s important that the website be fast to load
Using image editing software to manipulate images on a slow computer
Using image editing software to perform professional-level image manipulation
Convert this decimal number into a Binary number: 7
(a)
Convert this decimal number into a Binary number: 10
(a)
How many numbers are there in decimal
20
10
11
15
How many numbers are there in binary
1
2
3
4
How many bits in a byte
2
10
8
6
KB stands for
(a)
MB stands for ...
(a)
Yes
print(3+4)
