Worksheets9.1 Data representation KC 2
Total questions: 13
Worksheet time: 8mins
In a bitmap graphic each pixel is represented in _______
Denary
Binary
Hexadecimal
By letters
A binary code represents
the colour of each pixel.
the density of pixels in an image.
the information stored in an image to help recreate the image.
the number of bits used for each pixel.
How many bits per pixel do you need to make 4 colours?
colour depth of 1
colour depth of 2
colour depth of 3
colour depth of 4
Bitmap Colour Depth is
the colour of each pixel.
the density of pixels in an image.
information stored in an image to help recreate the image.
the number of bits used for each pixel.
Increasing Colour Depth and Resolution
increases the File size
decreases the File size
increases memory
decreases sound
Metadata is
the colour of each pixel.
the density of pixels in an image.
the information stored in an image to help recreate the image.
the number of bits used for each pixel.
Which is the correct unit of storage from lowest to highest
bit, nibble, byte, kilobyte, megabyte, gigabyte, terabyte
bit, byte, nibble, kilobyte, megabyte, gigabyte, terabyte
bit, nibble, byte, megabyte, kilobyte, gigabyte, terabyte
byte, bit, nibble, megabyte, kilobyte, gigabyte, terabyte
Which is the correct formula for calculating image file size in bits
image width x image height x colour depth
(image width + image height x colour depth) / 8
image width x image height + colour depth
(image width x image height x colour depth) / 8
How many colours are used to create this image?
3
4
5
8
In digital imaging,
pixel is short for __________________
picture element
pix element
picture
Match the following colour depth bits to the correct number of colours shown
Colour depth of 1
2 colours
Colour depth of 2
4 colours
Colour depth of 4
16 colours
Colour depth of 8
256 colours
Colour depth of 16
65,536 colours
This image has a resolution of 13 X 11 and it shows five colours (colour depth of three) what would the file size be
429 bits
715 bytes
429 bytes
715 bits
