Editing quiz questions

      What do the numbers 16:9 refer to?

   These numbers refer to the aspect ratio of the width and height of pixels. Here the 16 is the width and the 9 is the height. 

      What is the frame size of a 1080p video file?

The frame size of 1080p (height) is 1920p which is the width

       If you have a video file which is 720:50p what is the frame rate and what does the p stand for? 

The frame rate is 50fps and P = progressive

What is the difference between p and i?

      P = Progressive, this uses all the pixels in the frame which uses more memory but gives you the best quality.

 I = Interlaced, this only uses half the pixels in the frame, only using pixels it thinks it needs.  

What frame rate is real film shot at?

13.976 fps

 What might be the advantage of shooting at a higher frame rate?

Can shoot in slow motion and looks smoother with less blur.

 What defines a lossy file?

   High compressed file which removes information which it thinks isn't necessary to download. This makes the file size small, using less memory on your computer.

Name three file types commonly used in video editing.

    .MOV .WAV .MP4

 What is the difference between a video file type and a codec?

      Codec means Coding/decoding. The file type is like a container for the codec chooses what goes inside by compressing it and then decompressing so the file can be read. 

    What is bitrate?

   Bitrate is the number of bits per second which a video or music downloads from the source to your computer. It is the amount of data in a file, higher bitrate the more information reproduced meaning higher quality. So lowering the bitrate means it will take in less information and you less memory.