Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 180 · 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 7 minutes 52 seconds?
2. 2.⏱️ A video has three clips of 40, 41 and 15 seconds. How long is the video (in seconds)?
3. 3.⏱️ A 26-second clip is sped up to 2× speed. How long does it last now (in seconds)?
4. 4.⏱️ How many seconds is 3 minutes 23 seconds?
5. 5.⏱️ Your video must be 90 seconds long. Your clips add up to 78 seconds. How many more seconds of video do you need?
6. 6.⏱️ How many seconds is 1 minute 9 seconds?
7. 7.⏱️ A video has three clips of 27, 45 and 32 seconds. How long is the video (in seconds)?
8. 8.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
9. 9.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
10. 10.⏱️ A video has three clips of 38, 17 and 5 seconds. How long is the video (in seconds)?
11. 11.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
12. 12.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
13. 13.⏱️ How many seconds is 2 minutes 21 seconds?
14. 14.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 3 min 45 s (c) 1 min 65 s (d) 2 min 15 s
15. 15.⏱️ Your video must be 120 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
16. 16.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
17. 17.⏱️ How many seconds is 6 minutes 1 second?
18. 18.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
19. 19.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
20. 20.⏱️ A video has three clips of 33, 16 and 23 seconds. How long is the video (in seconds)?
21. 21.⏱️ A video has three clips of 14, 48 and 20 seconds. How long is the video (in seconds)?
22. 22.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 8 min 50 s (b) 5 min 30 s (c) 8 min 20 s (d) 9 min 50 s
23. 23.⏱️ A 12-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 27, 9 and 38 seconds. How long is the video (in seconds)?
25. 25.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
26. 26.⏱️ A video has three clips of 10, 22 and 16 seconds. How long is the video (in seconds)?
27. 27.⏱️ A video is 355 seconds long. How long is that in minutes and seconds? (a) 3 min 55 s (b) 5 min 25 s (c) 5 min 55 s (d) 6 min 55 s
28. 28.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
29. 29.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 20 s (c) 1 min 40 s (d) 2 min 50 s
30. 30.⏱️ A video has three clips of 50, 42 and 9 seconds. How long is the video (in seconds)?
31. 31.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
32. 32.⏱️ How many seconds is 1 minute 4 seconds?
33. 33.⏱️ A video has three clips of 57, 5 and 32 seconds. How long is the video (in seconds)?
34. 34.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
35. 35.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
36. 36.⏱️ How many seconds is 2 minutes 14 seconds?
37. 37.⏱️ A video has three clips of 16, 42 and 52 seconds. How long is the video (in seconds)?
38. 38.⏱️ A video has three clips of 25, 11 and 26 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video has three clips of 9, 6 and 37 seconds. How long is the video (in seconds)?
40. 40.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?

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