WorksheetsGCSE J277 - 1.2.4 - Representing Image Files
Total questions: 20
Worksheet time: 7mins
Name
Class
Date
1.
With a 1 bit colour depth image, how many bits are needed to represent each pixel?
a)
1
b)
2
c)
3
d)
4
2.
How many different colours can be represented in a 1 bit colour depth image?
a)
1
b)
2
c)
3
d)
4
3.
With a 2 bit colour depth image, how many bits are needed to represent each pixel?
a)
1
b)
2
c)
3
d)
4
4.
How many different colours can be represented in a 2 bit colour depth image?
a)
1
b)
2
c)
3
d)
4
5.
With a 3 bit colour depth image, how many bits are needed to represent each pixel?
a)
1
b)
2
c)
3
d)
4
6.
How many different colours can be represented in a 3 bit colour depth image?
a)
6
b)
7
c)
8
d)
9
7.
With a 4 bit colour depth image, how many bits are needed to represent each pixel?
a)
1
b)
2
c)
3
d)
4
8.
How many different colours can be reperesneted in a 4 bit colour depth image?
a)
8
b)
16
c)
32
d)
64
9.
What is resolution?
a)
The number of colours that can be represented in an image
b)
The number of years an image has existed
c)
The concentration of pixels within the image
d)
The name of exactly 100 pixels
10.
What is colour depth?
a)
The number of colours that can be represented in an image
b)
How deep you can go with certain greys and blues
c)
A high concentration of pixels
d)
How many deep colours you can show
11.
Increasing colour depth
a)
Compresses the file
b)
Deepends the colours
c)
Makes the file size bigger
d)
Makes the file size smaller
12.
Decreasing colour depth
a)
Compresses the file
b)
Deepends the colours
c)
Makes the file size bigger
d)
Makes the file size smaller
13.
How many pixels would a 20x20 image have?
a)
100
b)
200
c)
400
d)
800
14.
A 20x20 image has 400 pixels, if it has 8 bit colour depth, how many bits will be required
a)
256
b)
3000
c)
3200
d)
4000
15.
The overall detail of an image, this is affected by the colour depth and resolution
a)
Image Size
b)
Resolution
c)
Image Quality
d)
Colour Depth
16.
A set of data that describes and gives information about other data
a)
Datadata
b)
Datameta
c)
Data
d)
Metadata
17.
Smallest unit of a digital image
a)
Pixle
b)
Pixel
c)
Pixal
d)
Pixol
18.
Increasing colour depth
a)
Compresses the file
b)
Deepends the colours
c)
Improves picture quality
d)
Reduces picture quality
19.
Decreasing colour depth
a)
Compresses the file
b)
Deepends the colours
c)
Improves picture quality
d)
Reduces picture quality
20.
2⁴
a)
4
b)
8
c)
16
d)
32
100 %
