Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 86 · 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.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
2. 2.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 1 min 10 s (b) 3 min 10 s (c) 2 min 10 s (d) 1 min 40 s
3. 3.⏱️ Your video must be 180 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
4. 4.⏱️ How many seconds is 1 minute 13 seconds?
5. 5.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) twice as long (c) silent (d) half as long
6. 6.⏱️ A video is 200 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 2 min 0 s (c) 3 min 20 s (d) 4 min 20 s
7. 7.⏱️ A video has three clips of 50, 48 and 42 seconds. How long is the video (in seconds)?
8. 8.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 0 s (c) 1 min 30 s (d) 3 min 30 s
9. 9.⏱️ A video has three clips of 38, 46 and 20 seconds. How long is the video (in seconds)?
10. 10.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
11. 11.⏱️ A video has three clips of 16, 38 and 11 seconds. How long is the video (in seconds)?
12. 12.⏱️ A 44-second clip is sped up to 4× speed. How long does it last now (in seconds)?
13. 13.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
14. 14.⏱️ A 108-second clip is sped up to 4× speed. How long does it last now (in seconds)?
15. 15.⏱️ Your video must be 180 seconds long. Your clips add up to 108 seconds. How many more seconds of video do you need?
16. 16.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the longest clip (d) the sum of the clips
17. 17.⏱️ A video has three clips of 25, 29 and 50 seconds. How long is the video (in seconds)?
18. 18.⏱️ A video has three clips of 35, 23 and 18 seconds. How long is the video (in seconds)?
19. 19.⏱️ A video has three clips of 18, 41 and 57 seconds. How long is the video (in seconds)?
20. 20.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
21. 21.⏱️ A video has three clips of 42, 9 and 39 seconds. How long is the video (in seconds)?
22. 22.⏱️ A video has three clips of 29, 28 and 39 seconds. How long is the video (in seconds)?
23. 23.⏱️ A video has three clips of 46, 56 and 5 seconds. How long is the video (in seconds)?
24. 24.⏱️ A 78-second clip is sped up to 2× speed. How long does it last now (in seconds)?
25. 25.⏱️ How many seconds is 9 minutes 5 seconds?
26. 26.⏱️ How many seconds is 3 minutes 45 seconds?
27. 27.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
28. 28.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
29. 29.⏱️ A video is 110 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 50 s (c) 1 min 10 s (d) 1 min 50 s
30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
31. 31.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 6 min 15 s (b) 3 min 15 s (c) 5 min 45 s (d) 5 min 15 s
32. 32.⏱️ A video has three clips of 25, 31 and 15 seconds. How long is the video (in seconds)?
33. 33.⏱️ A video has three clips of 29, 32 and 25 seconds. How long is the video (in seconds)?
34. 34.⏱️ A 38-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 80 seconds. How many more seconds of video do you need?
36. 36.⏱️ A video has three clips of 19, 19 and 60 seconds. How long is the video (in seconds)?
37. 37.⏱️ Your video must be 120 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
38. 38.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?
39. 39.⏱️ A video has three clips of 49, 19 and 31 seconds. How long is the video (in seconds)?
40. 40.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 2 min 90 s (b) 4 min 20 s (c) 5 min 50 s (d) 4 min 50 s

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