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WorksheetsYear 8 November Test
Total questions: 10
Worksheet time: 5mins
What is binary?
A numbering system using 0s and 1s
A type of hard disk
An electronic device
A website for selecting a new bike
Reading from right to left - how do binary digits increase in value?
1,2,3,4,5
1,2,4,8,16
10,100,1000,10000,100000
1,-1,2,-2,3
What are the two many systems for representing characters on a computer
ASCII and Base64
Base64 and Hash
ASCII and Unicode
Unicode and GIF
True or False - Unicode can represent Chinese, Japanese and Russian characters
True
False
The individual elements that make up a bitmap image are called...?
Voxels
Paints
Pixels
Cells
What are the two main factors that effect image quality?
Smoothing and grooving
Loudness and Highness
Colour sample and Colour depth
Resolution and colour depth
Computer Aided Design uses images made up of lines called
Vector images
Vantage images
Volumetric images
Vortex images
What is the sample rate of a sound?
How often a computer records the frequency of a sound
How fast an instrument is being played
How loud a sound is
How wide a range of sounds a microphone can record
True of false - increase the frame rate of a video would make the movement in it appear smoother and less jerky
True
False
Video services such as Youtube might deliberately reduce the quality of a video you are watching. Why?
Because video requires a lot of data and poorer internet connections may not be able to cope
Because video services have to pay for each frame that they include in their videos
Because people prefer to watch jerky, low quality videos
Because they don't understand how videos work
