1. What do the numbers 16:9 refer to?
This is the aspect ratio of standard widescreen video. The 16 refers to the width, while the 9 refers to the
height.
2. What is the frame size of a 1080p video file?
The frame size for 1080p video is 1920x1080. 1920 pixels across, and 1080 pixels up.
3. If you have a video file which is 720:50p, what
is the frame rate and what does the p stand for?
The framerate is 50 frames per second, and the 'p' stands for 'progressive'.
4. What is the difference between 'p' and 'i'?
Progressive is where each frame is shown fully, one after the other, while 'interlaced' is where half of one
frame is shown, and then half of the other is shown in a staggered sequence.
5. What frame rate is real film shot at?
Film is shot at 23.976 frames per second.
6. What are the benefits of filming at a higher frame rate?
A higher frame rate than what you intend to deliver means that the video can be slowed down and still be
smooth, and there will be less motion blur.
7. What defines a 'lossy' file?
A lossy file is one which uses compression methods such as discarding repeated information in order to
decrease its total file size.
8. Name three file types commonly used in video editing.
.mov (video), .png (images), .wav (audio).
9. What is 'bitrate'?
Bitrate is the amount of information being processed/displayed by a file within a certain amount of time. A
higher bitrate means higher quality video.
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