Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 189 · 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.⏱️ A 72-second clip is sped up to 3× speed. How long does it last now (in seconds)?
2. 2.⏱️ Your video must be 90 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
3. 3.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
4. 4.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) the same length (d) silent
5. 5.⏱️ A video has three clips of 26, 32 and 47 seconds. How long is the video (in seconds)?
6. 6.⏱️ How many seconds is 3 minutes 53 seconds?
7. 7.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the longest clip (d) the sum of the clips
8. 8.⏱️ How many seconds is 5 minutes 32 seconds?
9. 9.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 10 (d) 30
10. 10.⏱️ A video has three clips of 37, 12 and 60 seconds. How long is the video (in seconds)?
11. 11.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
12. 12.⏱️ A video has three clips of 16, 33 and 24 seconds. How long is the video (in seconds)?
13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
14. 14.⏱️ Your video must be 180 seconds long. Your clips add up to 87 seconds. How many more seconds of video do you need?
15. 15.⏱️ How many seconds is 4 minutes 11 seconds?
16. 16.⏱️ A video has three clips of 20, 40 and 34 seconds. How long is the video (in seconds)?
17. 17.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
18. 18.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
19. 19.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
20. 20.⏱️ How many seconds is 5 minutes 41 seconds?
21. 21.⏱️ A video has three clips of 31, 13 and 31 seconds. How long is the video (in seconds)?
22. 22.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
23. 23.⏱️ How many seconds is 5 minutes 38 seconds?
24. 24.⏱️ How many seconds is 9 minutes 48 seconds?
25. 25.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
26. 26.⏱️ A video is 300 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 6 min 0 s (c) 3 min 0 s (d) 5 min 0 s
27. 27.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 1 min 60 s (b) 2 min 40 s (c) 2 min 10 s (d) 3 min 40 s
28. 28.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
29. 29.⏱️ How many seconds is 6 minutes 51 seconds?
30. 30.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
31. 31.⏱️ How many seconds is 4 minutes 46 seconds?
32. 32.⏱️ How many seconds is 6 minutes 13 seconds?
33. 33.⏱️ A video has three clips of 50, 34 and 51 seconds. How long is the video (in seconds)?
34. 34.⏱️ How many seconds is 2 minutes 38 seconds?
35. 35.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
36. 36.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
37. 37.⏱️ A video has three clips of 6, 21 and 29 seconds. How long is the video (in seconds)?
38. 38.⏱️ A video has three clips of 11, 18 and 41 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video has three clips of 48, 9 and 20 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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