Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 218 · 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 180 seconds long. Your clips add up to 154 seconds. How many more seconds of video do you need?
2. 2.⏱️ Your video must be 90 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
3. 3.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
4. 4.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
5. 5.⏱️ How many seconds is 9 minutes 48 seconds?
6. 6.⏱️ A 76-second clip is sped up to 4× speed. How long does it last now (in seconds)?
7. 7.⏱️ A 10-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 26, 27 and 60 seconds. How long is the video (in seconds)?
9. 9.⏱️ A video is 395 seconds long. How long is that in minutes and seconds? (a) 6 min 5 s (b) 7 min 35 s (c) 3 min 95 s (d) 6 min 35 s
10. 10.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
11. 11.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
12. 12.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 3 min 20 s (c) 2 min 20 s (d) 1 min 20 s
13. 13.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
14. 14.⏱️ Your video must be 90 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
15. 15.⏱️ A video has three clips of 57, 42 and 39 seconds. How long is the video (in seconds)?
16. 16.⏱️ How many seconds is 7 minutes 59 seconds?
17. 17.⏱️ Your video must be 120 seconds long. Your clips add up to 71 seconds. How many more seconds of video do you need?
18. 18.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 1 min 60 s (b) 2 min 40 s (c) 3 min 40 s (d) 2 min 10 s
19. 19.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 100 (d) 30
20. 20.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
21. 21.⏱️ How many seconds is 1 minute 42 seconds?
22. 22.⏱️ How many seconds is 6 minutes 4 seconds?
23. 23.⏱️ A video has three clips of 17, 56 and 34 seconds. How long is the video (in seconds)?
24. 24.⏱️ A video is 485 seconds long. How long is that in minutes and seconds? (a) 4 min 85 s (b) 8 min 35 s (c) 9 min 5 s (d) 8 min 5 s
25. 25.⏱️ A video has three clips of 14, 24 and 18 seconds. How long is the video (in seconds)?
26. 26.⏱️ Your video must be 60 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
27. 27.⏱️ How many seconds is 9 minutes 22 seconds?
28. 28.⏱️ A video has three clips of 55, 53 and 19 seconds. How long is the video (in seconds)?
29. 29.⏱️ A 3-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, 7 and 51 seconds. How long is the video (in seconds)?
31. 31.⏱️ A video has three clips of 16, 33 and 52 seconds. How long is the video (in seconds)?
32. 32.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
34. 34.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
35. 35.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
36. 36.⏱️ A video has three clips of 29, 54 and 47 seconds. How long is the video (in seconds)?
37. 37.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
38. 38.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 25 s (c) 2 min 5 s (d) 2 min 35 s
39. 39.⏱️ A video is 265 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 5 min 25 s (c) 4 min 25 s (d) 2 min 65 s
40. 40.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

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