Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 132 · 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 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
2. 2.⏱️ A video has three clips of 21, 22 and 9 seconds. How long is the video (in seconds)?
3. 3.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
4. 4.⏱️ A 26-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
5. 5.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 1 min 10 s (c) 3 min 10 s (d) 1 min 40 s
6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
7. 7.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 7 min 40 s (b) 8 min 10 s (c) 7 min 10 s (d) 4 min 30 s
8. 8.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
9. 9.⏱️ A video has three clips of 6, 8 and 48 seconds. How long is the video (in seconds)?
10. 10.⏱️ How many seconds is 4 minutes 50 seconds?
11. 11.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
12. 12.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
13. 13.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 7 min 15 s (b) 6 min 45 s (c) 3 min 75 s (d) 6 min 15 s
14. 14.⏱️ A video is 85 seconds long. How long is that in minutes and seconds? (a) 1 min 55 s (b) 1 min 25 s (c) 2 min 25 s (d) 3 min 25 s
15. 15.⏱️ A video has three clips of 18, 41 and 25 seconds. How long is the video (in seconds)?
16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
17. 17.⏱️ A video has three clips of 10, 19 and 19 seconds. How long is the video (in seconds)?
18. 18.⏱️ A video has three clips of 30, 57 and 17 seconds. How long is the video (in seconds)?
19. 19.⏱️ How many seconds is 6 minutes 17 seconds?
20. 20.⏱️ A video is 275 seconds long. How long is that in minutes and seconds? (a) 4 min 35 s (b) 5 min 35 s (c) 4 min 5 s (d) 2 min 75 s
21. 21.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 10 min 0 s (c) 5 min 40 s (d) 9 min 0 s
22. 22.⏱️ A video has three clips of 8, 17 and 53 seconds. How long is the video (in seconds)?
23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
24. 24.⏱️ A video is 565 seconds long. How long is that in minutes and seconds? (a) 10 min 25 s (b) 9 min 55 s (c) 5 min 65 s (d) 9 min 25 s
25. 25.⏱️ A video has three clips of 28, 22 and 11 seconds. How long is the video (in seconds)?
26. 26.⏱️ How many seconds is 1 minute 38 seconds?
27. 27.⏱️ A video has three clips of 27, 9 and 52 seconds. How long is the video (in seconds)?
28. 28.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
29. 29.⏱️ A 36-second clip is sped up to 4× speed. How long does it last now (in seconds)?
30. 30.⏱️ Your video must be 120 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
31. 31.⏱️ A video has three clips of 12, 28 and 29 seconds. How long is the video (in seconds)?
32. 32.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?
33. 33.⏱️ A video has three clips of 21, 43 and 58 seconds. How long is the video (in seconds)?
34. 34.⏱️ A video has three clips of 34, 19 and 21 seconds. How long is the video (in seconds)?
35. 35.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
36. 36.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
37. 37.⏱️ How many seconds is 9 minutes 55 seconds?
38. 38.⏱️ A video is 345 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 5 min 45 s (c) 3 min 45 s (d) 6 min 45 s
39. 39.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
40. 40.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?

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