WorksheetsBitmap images (improved)
Total questions: 12
Worksheet time: 2mins
Name
Class
Date
1.
Tiny squares called ___________ are the building blocks of all digital images.
a)
elements
b)
dots
c)
pixars
d)
pixels
2.
When we have a 'one-bit' colour, which are the only two binary numbers that are possibilities?
a)
00 and 11
b)
000 and 111
c)
0 and 1
d)
0000 and 1111
3.
How many combinations are there for a '2 bit' colour?
a)
8
b)
4
c)
16
d)
32
4.
A bitmap image is made up of
a)
Pixels
b)
Colours
c)
Sounds
d)
Samples
5.
How many colours can be used for each pixel if the colour depth is 8 bit?
a)
8 colours
b)
9 colours
c)
255 colours
d)
256 colours
6.
Additional Information about the image file is stored as
a)
Metadata
b)
Properties
c)
File summary
d)
Pixels
7.
The number of pixels per inch in an image is known as the
a)
Dimensions
b)
Colour depth
c)
Resolution
d)
Megapixels
8.
Increasing the resolution of an image means that
a)
More pixels will be used to make up the image
b)
More colours will be used to make up the image
c)
The image size will be bigger
9.
Which is NOT an effect of increasing the resolution in an image?
a)
More colours can be displayed.
b)
More binary will be required to create the image.
c)
Larger file size
d)
Higher quality image
10.
Colour depth defines...
a)
How many bits are needed to store each pixel
b)
How many pixels are in an image
c)
The file size of a bitmap image
d)
The sample rate of sound
11.
A bitmap image has 9 different colours.
What is the minimum colour depth needed?
a)
2
b)
3
c)
4
d)
9
e)
10
12.
A bitmap image of 10 by 10 pixels using a colour dept of 8 bits would have a file size of around:
a)
100 bytes
b)
800 bytes
c)
400 bytes
d)
80 bytes
100 %
