G1.2_3_images_data rep

1: What do we call the smallest unit of data that can be represented in an image? (1-4)

• Pixel
• Dot
• Colour
• Bit

2: What is meant by Colour Depth? (4-6)

• Number of pixels in the image
• The number of colours available for each pixel
• How pixelated the image is

3: If you increase the colour depth then the file size will decrease? (4-6)

• True
• False

4: How many colours can be represented with a 4 bit colour depth? (7-9)

• 2.0
• 4.0
• 16.0
• 256.0

5: What is the term used to define what must be known about a bitmap, for it to be represented accurately? (4-6)

• Microdata
• Metadata
• Megadata

6: In modern technology what unit of measurement would be used for screen size? (4-6)

• Pixels per inch (PPI)
• Dots per inch (DPI)
• Pixels per metre (PPM)

7: Which of the following is not stored as Metadata about an image? (6-9)

• Height
• Colour Depth
• Resolution
• Number of people in the image

8: Which of the following is not an image file? (4-6)

• PNG
• JPEG
• Bitmap
• MPEG

9: What three colours are used to produce a broad array of colours in a computer system? (1-4)

• Green, Red, Orange
• Red, Green, Blue
• Yellow, Green, Red

10: What is the name of the type of graphic that uses shapes of solid colour? (6-8)

• Raster
• GIF
• JPEG
• Vector