Understanding Bitmap Images Quiz

What does the resolution of a bitmap image refer to?

• The number of colours in the image

• The number of pixels in the image

• The file size of the image

• The type of file format used

If a bitmap image is enlarged too much, what is most likely to happen?

• The image will become sharper

• The image will become pixelated

• The image will gain more colours

• The image will become smaller

What happens to the file size of a bitmap image if you increase its resolution?

• The file size decreases

• The file size increases

• The file size stays the same

• The file size becomes zero

Which of the following best describes a bitmap image?

• An image made up of mathematical equations

• An image made up of a grid of individual pixels

• An image made up of only black and white colours

• An image that cannot be edited

Why are bitmap images often used for photographs?

• They can be scaled to any size without losing quality

• They can show a wide range of colours and details

• They use less memory than vector images

• They are always black and white

Which of the following file formats is commonly used for bitmap images?

• .svg

• .jpg

• .docx

• .mp3

• 2,073,600 pixels

• 1,080 pixels

• 1920 pixels

• 20,736 pixels

What does bit depth refer to in a bitmap image?

• The file size

• The number of different colours that could be used in the image

• The number of pixels in the image

• The way the pixels are laid out

How many different colours could you have in a bitmap image which has a colour depth of 3 bits?

• 2

• 4

• 8

• 16

Frances creates a sprite for a computer game. Her sprite is 16x16 pixels and has a bit depth of 24bits. How much space would be needed to store the image? Answer in kilobytes.

Mathematical Equivalence

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