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WorksheetsDigital Audio and Video
Total questions: 14
Worksheet time: 1hrs 10mins
Which of the following is an example of analog sound recording?
USB drive
Cassette tape
Cloud storage
Hard disk
Modern computers divide sound waves into discrete segments called...
amplitude
samples
bit depth
waveform
Early computers used (a) , or one byte, to represent each sample. That means each sample had only (b) possible values.
Sampling rate is measured in...
hertz (Hz)
bytes (B)
bits per second (bps)
pixels
When it comes to digital audio, higher sampling rates have better quality but require more...
storage space
waveforms
bit depth
analog output
Every video you've ever seen is really a bunch of ___________ shown in fast sequence.
still images
video samples
vibrations
binary numbers
Videos appear smoother and more fluid when playing if they have a...
higher frame rate
lower frame rate
higher bit depth
lower bit depth
What are pixels?
Tiny dots of color
Waves created by changes in pressure in the air
Measurement for how much memory the computer uses to display colors
Individual frames that make up a video
If you count how many pixels wide and tall a video frame is, you know its...
color depth
sampling rate
resolution
frame rate
Color depth measures how...
much memory the computer uses to display colors
much electricity the computer needs to display particular colors
many pixels per inch a computer monitor has
how many colors can be displayed in a single frame
24-bit color can use millions of different colors because it uses ______ bytes for each pixel.
two
three
six
twelve
Most modern sound recordings are made at...
96 kHz
8,000 Hz
A video with a high resolution and a high frame rate will appear...
clearer and more fluid
pixelated and choppier
clearer but choppier
less detailed but more fluid
Match the feature/term to the digital format it describes.
Sample
Bit Depth
Sampling Rate
Frame Rate
Resolution
Color Depth
