Year 9 Summer 2023 (2)

What does Pixel stand for?

• Picture Element

• Picture Square

• Picture Lighting

• Picture Line

A picture with ____ pixels has higher quality.

• More

• Less

• Bigger

• Circular

What does colour depth mean?

• Number of bits for each pixel

• Number of colours for each pixel

• Number of colours in the image

• Number of pixels in an image

With 3 bits for each pixel, how many colours can the pixel display?

• 3

• 6

• 8

• 9

An image where each pixel can display 32 different colours would need how many bits for each pixel?

• 32

• 16

• 5

• 2^32

Select the three primary colours for computer displays.

• Red

• Green

• Blue

• Yellow

• Cyan

What is the colour depth in bits for a True Colour image (enter a number only)?

The metadata for an image has the width and height in that order using 4 bits for each. The image is 13 pixels wide and 14 pixels tall. Enter the binary for the metadata.

What is the correct expression for the size of an image in KibiBytes? The width is w, the height is h and the colour depth is c.

• (w x h x c) / (8 x 1024)

• (w x h x c) / 1024

• (w + h + c) / 1024

• (w + h + c) / (1024 + 8)

What is the correct expression for the size of an image in MebiBytes? The width is w, the height is h and the colour depth is c.

• (w x h x c) / (8 x 1024 x 1024)

• (w x h x c) / (1024 x 1024)

• (w + h + c) / 2048

• (w + h + c) / (1024 x 8)