Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 78 · 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.⏱️ How many seconds is 1 minute 8 seconds?
2. 2.⏱️ Your video must be 60 seconds long. Your clips add up to 46 seconds. How many more seconds of video do you need?
3. 3.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
4. 4.⏱️ A video has three clips of 9, 7 and 16 seconds. How long is the video (in seconds)?
5. 5.⏱️ A video is 485 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 8 min 5 s (c) 4 min 85 s (d) 8 min 35 s
6. 6.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) half as long (d) silent
7. 7.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
8. 8.⏱️ A video has three clips of 15, 15 and 51 seconds. How long is the video (in seconds)?
9. 9.⏱️ How many seconds is 2 minutes 36 seconds?
10. 10.⏱️ A video has three clips of 20, 47 and 36 seconds. How long is the video (in seconds)?
11. 11.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the shortest clip (d) the sum of the clips
12. 12.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
13. 13.⏱️ A video has three clips of 24, 38 and 30 seconds. How long is the video (in seconds)?
14. 14.⏱️ A video has three clips of 41, 37 and 26 seconds. How long is the video (in seconds)?
15. 15.⏱️ A 34-second clip is sped up to 2× speed. How long does it last now (in seconds)?
16. 16.⏱️ A video has three clips of 59, 48 and 56 seconds. How long is the video (in seconds)?
17. 17.⏱️ A video is 330 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 6 min 30 s (c) 3 min 30 s (d) 5 min 0 s
18. 18.⏱️ A video has three clips of 11, 27 and 33 seconds. How long is the video (in seconds)?
19. 19.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
20. 20.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
21. 21.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 100 (d) 10
22. 22.⏱️ How many seconds is 1 minute 17 seconds?
23. 23.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
24. 24.⏱️ A video has three clips of 42, 18 and 53 seconds. How long is the video (in seconds)?
25. 25.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
26. 26.⏱️ How many seconds is 5 minutes 49 seconds?
27. 27.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
28. 28.⏱️ How many seconds is 8 minutes 11 seconds?
29. 29.⏱️ A 12-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
30. 30.⏱️ How many seconds is 6 minutes 38 seconds?
31. 31.⏱️ A video has three clips of 41, 17 and 19 seconds. How long is the video (in seconds)?
32. 32.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
35. 35.⏱️ Your video must be 180 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
36. 36.⏱️ A video has three clips of 55, 14 and 50 seconds. How long is the video (in seconds)?
37. 37.⏱️ A video has three clips of 9, 53 and 39 seconds. How long is the video (in seconds)?
38. 38.⏱️ An 81-second clip is sped up to 3× speed. How long does it last now (in seconds)?
39. 39.⏱️ A video has three clips of 12, 19 and 51 seconds. How long is the video (in seconds)?
40. 40.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

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