Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 313 · 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.⏱️ Your video must be 90 seconds long. Your clips add up to 66 seconds. How many more seconds of video do you need?
2. 2.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 4 min 25 s (c) 5 min 55 s (d) 2 min 95 s
3. 3.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 7 min 20 s (c) 4 min 40 s (d) 7 min 50 s
4. 4.⏱️ A 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
5. 5.⏱️ A video has three clips of 12, 28 and 49 seconds. How long is the video (in seconds)?
6. 6.⏱️ 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
7. 7.⏱️ A 12-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 19, 47 and 25 seconds. How long is the video (in seconds)?
9. 9.⏱️ How many seconds is 2 minutes 2 seconds?
10. 10.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
11. 11.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
12. 12.⏱️ A video is 425 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 8 min 5 s (c) 7 min 5 s (d) 7 min 35 s
13. 13.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 1 min 15 s (c) 1 min 45 s (d) 3 min 15 s
14. 14.⏱️ A video has three clips of 45, 13 and 12 seconds. How long is the video (in seconds)?
15. 15.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 5 min 40 s (b) 3 min 10 s (c) 5 min 10 s (d) 6 min 10 s
16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 112 seconds. How many more seconds of video do you need?
17. 17.⏱️ A video has three clips of 35, 31 and 48 seconds. How long is the video (in seconds)?
18. 18.⏱️ How many seconds is 3 minutes 27 seconds?
19. 19.⏱️ A video has three clips of 54, 56 and 23 seconds. How long is the video (in seconds)?
20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
21. 21.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
22. 22.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 30 (d) 100
23. 23.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
24. 24.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
25. 25.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 50 s (c) 4 min 50 s (d) 3 min 20 s
26. 26.⏱️ A video has three clips of 36, 25 and 55 seconds. How long is the video (in seconds)?
27. 27.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
28. 28.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 8 min 30 s (b) 9 min 0 s (c) 8 min 0 s (d) 4 min 80 s
29. 29.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
30. 30.⏱️ A video has three clips of 35, 35 and 53 seconds. How long is the video (in seconds)?
31. 31.⏱️ Your video must be 90 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
32. 32.⏱️ A video has three clips of 30, 9 and 39 seconds. How long is the video (in seconds)?
33. 33.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ A video has three clips of 37, 57 and 6 seconds. How long is the video (in seconds)?
35. 35.⏱️ A 42-second clip is sped up to 2× speed. How long does it last now (in seconds)?
36. 36.⏱️ A video has three clips of 14, 17 and 13 seconds. How long is the video (in seconds)?
37. 37.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
38. 38.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
39. 39.⏱️ A 93-second clip is sped up to 3× speed. How long does it last now (in seconds)?
40. 40.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

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