Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 326 · 40 questions

Creator's tip (Add the clips): Video length = the clips added up. Minutes → seconds: × 60, then add the extra seconds. Seconds → minutes: take away 60 as many times as it fits. Still needed = target − what you have; 2× speed halves the time, half speed doubles it.

1. 1.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
2. 2.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
3. 3.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
4. 4.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
5. 5.⏱️ Your video must be 180 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
6. 6.⏱️ How many seconds is 8 minutes 36 seconds?
7. 7.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
8. 8.⏱️ A video has three clips of 41, 6 and 9 seconds. How long is the video (in seconds)?
9. 9.⏱️ How many seconds is 2 minutes 39 seconds?
10. 10.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 3 min 15 s (c) 3 min 45 s (d) 1 min 95 s
11. 11.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
12. 12.⏱️ How many seconds is 6 minutes 57 seconds?
13. 13.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
14. 14.⏱️ Your video must be 60 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
15. 15.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
16. 16.⏱️ A video has three clips of 16, 19 and 49 seconds. How long is the video (in seconds)?
17. 17.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
18. 18.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
19. 19.⏱️ A video has three clips of 12, 32 and 55 seconds. How long is the video (in seconds)?
20. 20.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
21. 21.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 6 min 10 s (c) 5 min 10 s (d) 3 min 10 s
22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
23. 23.⏱️ A video has three clips of 44, 10 and 30 seconds. How long is the video (in seconds)?
24. 24.⏱️ A video has three clips of 5, 23 and 47 seconds. How long is the video (in seconds)?
25. 25.⏱️ A video is 360 seconds long. How long is that in minutes and seconds? (a) 7 min 0 s (b) 6 min 0 s (c) 6 min 30 s (d) 3 min 60 s
26. 26.⏱️ A video has three clips of 21, 8 and 55 seconds. How long is the video (in seconds)?
27. 27.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
28. 28.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 3 min 40 s (b) 3 min 10 s (c) 4 min 40 s (d) 2 min 20 s
29. 29.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
30. 30.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) always 1 minute (d) the shortest clip
31. 31.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
32. 32.⏱️ Your video must be 120 seconds long. Your clips add up to 114 seconds. How many more seconds of video do you need?
33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 105 seconds. How many more seconds of video do you need?
34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
35. 35.⏱️ A video has three clips of 36, 52 and 18 seconds. How long is the video (in seconds)?
36. 36.⏱️ How many seconds is 7 minutes 8 seconds?
37. 37.⏱️ A video has three clips of 43, 5 and 57 seconds. How long is the video (in seconds)?
38. 38.⏱️ A 44-second clip is sped up to 4× speed. How long does it last now (in seconds)?
39. 39.⏱️ How many seconds is 8 minutes 37 seconds?
40. 40.⏱️ A video has three clips of 27, 36 and 9 seconds. How long is the video (in seconds)?

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