Calculating File Sizes

An image is 1200 * 600. How many pixels are there?

• 800000

• 720000

• 500000

• 450000

An image has a bit depth of 8. How many colours can be represented?

An image has a bit depth of 2. How many colours can be represented

• 2

• 6

• 4

• 8

An image has a resolution of 500 * 500 and a bit depth of 8. What is the calculation for the file size?

• 500-500*8

• 500+500*8

• 500/500*8

• 500*500*8

An image has a resolution of 100 * 100 and a bit depth of 8. What is the size of the image in bits?

• 80,000

• 8,000

• 800,000

• 800

What is 80,000 bits in bytes?

• 100

• 100,000

• 10,000

• 1000

What is 10,000 bytes in kilobytes?

• 10

• 1000

• 1

• 100

A video has a bitrate of 8Mbps. The video is 30 seconds long. How many megabits is it?

• 320

• 300

• 200

• 240

How many megabytes is this 240 megabit video?

• 50

• 20

• 30

• 40

What is framerate?

• Number of frames per second

• Number of seconds per frame

• Number of frames per minute

• Number of seconds per minute