8th Grade Multimedia Representation Quizzes , Questions & Answers

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8th Grade

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This Digital Audio Representation Quiz helps you understand how sound is converted into digital form and stored on computers. You'll learn about sampling, bit depth, audio formats, and compression techniques that make music and...

Questions: 15 | Attempts: 13 | Last updated: Apr 30, 2026

Sample Question 1
What is the process of converting analog sound waves into digital data called?

Sampling

Compression

Encoding

Modulation

Sample Question 2
How many times per second does a CD sample audio at standard quality?

22,050 Hz

44,100 Hz

96,000 Hz

192,000 Hz

Video Compression Basics Quiz

This Video Compression Basics Quiz tests your understanding of how digital videos are made smaller without losing quality. Learn about compression techniques, file formats, codecs, and bitrate that professionals use to stream and...

Questions: 15 | Attempts: 12 | Last updated: Apr 30, 2026

Sample Question 1
What is video compression?

Removing frames from a video file

Reducing video file size by removing unnecessary data

Making videos play faster on devices

Adding more colors to video footage

Sample Question 2
Which of the following is a common video codec?

H.264

JPEG

PNG

GIF

8th Grade Multimedia Representation Quizzes , Questions & Answers

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