Module 3 Worksheet

Priya is working on a school project where she needs an audio file NOT a video file. She is unsure about the common file extensions used for audio files. Can you help her choose the correct file extension from the following options?

• avi

• mp4

• wav

• mov

Emma, Evelyn, and Aria are working on a school project where they need to create a video file. Which of the following file extensions would be allowed.

• aac

• mp4

• aiff

• wma

Which file extension allows both audio and video files combined into one extension

• midi

• wmv

• Mp4

• aac

Arjun and Maya are watching a video of a soccer match. They want the video to appear smoother and more fluid. What should they adjust?

• higher frame rate

• higher resolution

• lower frame rate

• lower resolution

Bit Rate is how many bits are used to encode each individual sample in an audio recording.

• True

• False

Audio and image files use Lossy compression to take advantage of the limitations of human sight and hearing

• True

• False

Color depth, resolution, and frame rate affect audio quality.

• True

• False

Sampling rate is a measure of how many samples are made from an audio wave each second.

• True

• False

Color depth is the measure of how many pixels are in each individual image in a picture or video

• True

• False

Raster images are made by storing individual pixel values.

• True

• False