Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 39 · 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 27-second clip is sped up to 3× speed. How long does it last now (in seconds)?
2. 2.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 5 min 0 s (c) 4 min 30 s (d) 4 min 0 s
3. 3.⏱️ A video has three clips of 36, 21 and 23 seconds. How long is the video (in seconds)?
4. 4.⏱️ A video has three clips of 51, 52 and 54 seconds. How long is the video (in seconds)?
5. 5.⏱️ A video has three clips of 16, 19 and 31 seconds. How long is the video (in seconds)?
6. 6.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
7. 7.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
8. 8.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 5 min 80 s (b) 9 min 10 s (c) 10 min 40 s (d) 9 min 40 s
9. 9.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
10. 10.⏱️ A video has three clips of 52, 28 and 36 seconds. How long is the video (in seconds)?
11. 11.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the sum of the clips (d) the shortest clip
12. 12.⏱️ A video has three clips of 54, 15 and 54 seconds. How long is the video (in seconds)?
13. 13.⏱️ A video has three clips of 45, 47 and 32 seconds. How long is the video (in seconds)?
14. 14.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 4 min 0 s (b) 4 min 30 s (c) 2 min 70 s (d) 5 min 30 s
15. 15.⏱️ A video has three clips of 17, 19 and 6 seconds. How long is the video (in seconds)?
16. 16.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 104 seconds. How many more seconds of video do you need?
18. 18.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
19. 19.⏱️ A video has three clips of 53, 52 and 53 seconds. How long is the video (in seconds)?
20. 20.⏱️ A 10-second clip is sped up to 2× speed. How long does it last now (in seconds)?
21. 21.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
23. 23.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
24. 24.⏱️ How many seconds is 2 minutes 23 seconds?
25. 25.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
26. 26.⏱️ A video has three clips of 11, 9 and 44 seconds. How long is the video (in seconds)?
27. 27.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
28. 28.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
29. 29.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
30. 30.⏱️ A video has three clips of 16, 9 and 5 seconds. How long is the video (in seconds)?
31. 31.⏱️ Your video must be 60 seconds long. Your clips add up to 40 seconds. How many more seconds of video do you need?
32. 32.⏱️ A 78-second clip is sped up to 3× speed. How long does it last now (in seconds)?
33. 33.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
34. 34.⏱️ How many seconds is 6 minutes 40 seconds?
35. 35.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 9 min 30 s (b) 5 min 10 s (c) 8 min 0 s (d) 8 min 30 s
36. 36.⏱️ Your video must be 60 seconds long. Your clips add up to 54 seconds. How many more seconds of video do you need?
37. 37.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 4 min 10 s (b) 5 min 10 s (c) 4 min 40 s (d) 2 min 50 s
38. 38.⏱️ Your video must be 60 seconds long. Your clips add up to 48 seconds. How many more seconds of video do you need?
39. 39.⏱️ How many seconds is 1 minute 28 seconds?
40. 40.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

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