Lesson 4.5.6.5
4.5.6.5 Vector graphics Quiz: AQA Computer Science, Unit 5
20 questions
In partnership with Revision Ninja
Lesson 4.5.6.5, Vector graphics: 20 multiple choice questions for the AQA Computer Science (7517), Unit 5: Fundamentals of data representation, written with Revision Ninja.
Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.
The 20 questions
-
How are images represented in a vector graphics file?
- Grid of pixels
- Continuous signals
- Array of samples
- List of objects
-
Which property is stored for a vector graphic object?
- Fill colour
- Pixel array
- Sample rate
- Bit depth
-
What term describes a basic geometric shape used in vector graphics?
- Colour palette
- Pixel grid
- Drawing primitive
- Bitmap mask
-
What happens to the image quality when a vector graphic is enlarged?
- It turns blurry
- It reduces resolution
- It is maintained
- It becomes pixelated
-
Which type of graphic is best suited to logos and line drawings?
- Sound files
- Raw camera images
- Vector graphics
- Bitmapped graphics
-
Which type of image is generally unsuitable for representation using vector graphics?
- Company logo
- Scalable icon
- Simple flowchart
- Continuous-tone photograph
-
Which properties are required to mathematically define a simple vector circle?
- Pixel density
- Centre and radius
- Top-left coordinate
- Width and height
-
A vector rectangle has corners (0,0), (10,0), (10,5) and (0,5). What is its area?
- 30
- 25
- 15
- 50
-
How is a vector graphic image stored internally in a file?
- Frequency spectrum
- Grid of bytes
- Array of pixels
- List of objects
-
A line runs from (0,0) to (3,4). What is its length?
- 3.5 units
- 12 units
- 7 units
- 5 units
-
A vector shape is a square with four sides each of length 5. What is its perimeter?
- 10
- 15
- 20
- 25
-
Why does a plain square usually have a smaller file size as a vector than a bitmap?
- Fewer stored properties
- Lower colour depth
- Higher compression ratio
- Fewer total pixels
-
A polygon has 6 vertices. How many coordinate pairs must be stored at minimum?
- 5
- 12
- 7
- 6
-
A vector triangle has base 6 and height 4. What is its area?
- 12
- 24
- 10
- 6
-
If both dimensions of a vector shape double, by what factor does its area increase?
- 16
- 8
- 2
- 4
-
Why are bitmap graphics preferred over vector graphics for complex photographic images?
- Smaller file size
- Resolution independence
- Fine tonal detail
- Infinite scalability
-
What visual artefact appears on a bitmap image when it is significantly zoomed in?
- Colour inversion
- Geometric distortion
- Pixelation
- Aliasing blur
-
What primarily determines the file size of an uncompressed vector graphic?
- Pixel bit depth
- Number of objects
- Display resolution
- Image dimensions
-
What key advantage do vector graphics offer for digital maps that require frequent zooming?
- Fast bitwise operations
- Lossy compression
- Resolution independence
- Fixed pixel layout
-
Which operation can be performed on a single shape in a vector graphic without affecting overlapping shapes?
- Independent editing
- Pixel resampling
- Quantisation
- Direct colour filtering
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