Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 134 · 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 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?
2. 2.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
3. 3.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
4. 4.⏱️ How many seconds is 9 minutes 12 seconds?
5. 5.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
6. 6.⏱️ How many seconds is 1 minute 59 seconds?
7. 7.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
8. 8.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 100 (d) 30
9. 9.⏱️ Your video must be 60 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
10. 10.⏱️ A video has three clips of 9, 20 and 16 seconds. How long is the video (in seconds)?
11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
12. 12.⏱️ A video is 95 seconds long. How long is that in minutes and seconds? (a) 1 min 5 s (b) 3 min 35 s (c) 2 min 35 s (d) 1 min 35 s
13. 13.⏱️ A 99-second clip is sped up to 3× speed. How long does it last now (in seconds)?
14. 14.⏱️ A video has three clips of 30, 58 and 37 seconds. How long is the video (in seconds)?
15. 15.⏱️ A video is 200 seconds long. How long is that in minutes and seconds? (a) 4 min 20 s (b) 2 min 0 s (c) 3 min 20 s (d) 3 min 50 s
16. 16.⏱️ How many seconds is 2 minutes 47 seconds?
17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
18. 18.⏱️ Your video must be 120 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
19. 19.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
20. 20.⏱️ A video has three clips of 52, 29 and 11 seconds. How long is the video (in seconds)?
21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 51 seconds. How many more seconds of video do you need?
22. 22.⏱️ Your video must be 180 seconds long. Your clips add up to 126 seconds. How many more seconds of video do you need?
23. 23.⏱️ A video has three clips of 7, 34 and 20 seconds. How long is the video (in seconds)?
24. 24.⏱️ How many seconds is 2 minutes 8 seconds?
25. 25.⏱️ A video is 280 seconds long. How long is that in minutes and seconds? (a) 2 min 80 s (b) 5 min 40 s (c) 4 min 10 s (d) 4 min 40 s
26. 26.⏱️ A video has three clips of 14, 10 and 10 seconds. How long is the video (in seconds)?
27. 27.⏱️ 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
28. 28.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
29. 29.⏱️ A video has three clips of 45, 7 and 59 seconds. How long is the video (in seconds)?
30. 30.⏱️ How many seconds is 2 minutes 26 seconds?
31. 31.⏱️ 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
32. 32.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ A video has three clips of 7, 44 and 46 seconds. How long is the video (in seconds)?
34. 34.⏱️ How many seconds is 9 minutes 42 seconds?
35. 35.⏱️ A 33-second clip is sped up to 3× speed. How long does it last now (in seconds)?
36. 36.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
37. 37.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 5 min 90 s (b) 9 min 50 s (c) 9 min 20 s (d) 10 min 50 s
38. 38.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
39. 39.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
40. 40.⏱️ A video is 230 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 20 s (c) 3 min 50 s (d) 4 min 50 s

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