Mm Quiz5 Sol
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F.4 C.I.T.Module D – Video and Animation
Module D – Video and Animation Quiz Time Allowed: 10 minutes Name: 1.
2. 3.
4. 5.
1
Mark: Class:
/20 4A (
)
Videos and animations are composed of series of pictures called frames . The number of pictures that can be shown in one second is called the frame rate and the unit is fps . The playback speed of an animation is usually slower / faster than a video. Video stored in VCR (錄影帶) is analogue / digital. Video stored in computer hard disk is analogue / digital. Video stored in DVD is analogue / digital. We can use digital camcorder to record our daily life in digital video files. We can watch an online video files in two different ways: Method 1: Downloading Video file is wholly downloaded before watching it. Method 2: Streaming Video file can be watched while the file is still continuously downloading from the internet. (a) Give two advantages of Method 1. No lagging when playing the video file. Can be played anytime. (b) Give two advantages of Method 2. Less waiting time before viewing the video.
6.
Give two attributes (屬性) which affect the size of a video file. Frame rate, colour depth, video dimensions, duration, compression ratio, etc.
7.
How many frames at least are needed to create an animation in Flash? 2 Flash will calculate the change of the objects between these frames. This process is called tweening. Flash provides two kinds of tweening: motion tweening and shape tweening. When comparing Animated GIF and Flash: Animated GIF is better than Flash because: The creation of animation is simpler / variable frame rate / No plug-in is needed Flash is better than Animated GIF because: Can have sound / Can have interaction / Scripting is possible / More delicate controls on animation / Resize without loss of quality / Streaming is supported END
8.
Module D – Video and Animation Quiz Time Allowed: 10 minutes Name: 1.
2. 3.
4. 5.
1
Mark: Class:
/20 4A (
)
Videos and animations are composed of series of pictures called frames . The number of pictures that can be shown in one second is called the frame rate and the unit is fps . The playback speed of an animation is usually slower / faster than a video. Video stored in VCR (錄影帶) is analogue / digital. Video stored in computer hard disk is analogue / digital. Video stored in DVD is analogue / digital. We can use digital camcorder to record our daily life in digital video files. We can watch an online video files in two different ways: Method 1: Downloading Video file is wholly downloaded before watching it. Method 2: Streaming Video file can be watched while the file is still continuously downloading from the internet. (a) Give two advantages of Method 1. No lagging when playing the video file. Can be played anytime. (b) Give two advantages of Method 2. Less waiting time before viewing the video.
6.
Give two attributes (屬性) which affect the size of a video file. Frame rate, colour depth, video dimensions, duration, compression ratio, etc.
7.
How many frames at least are needed to create an animation in Flash? 2 Flash will calculate the change of the objects between these frames. This process is called tweening. Flash provides two kinds of tweening: motion tweening and shape tweening. When comparing Animated GIF and Flash: Animated GIF is better than Flash because: The creation of animation is simpler / variable frame rate / No plug-in is needed Flash is better than Animated GIF because: Can have sound / Can have interaction / Scripting is possible / More delicate controls on animation / Resize without loss of quality / Streaming is supported END
8.
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