Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 153 · 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 48 seconds. How many more seconds of video do you need?
2. 2.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
3. 3.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) the same length (d) half as long
4. 4.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
5. 5.⏱️ How many seconds is 4 minutes 6 seconds?
6. 6.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
7. 7.⏱️ A video has three clips of 53, 55 and 58 seconds. How long is the video (in seconds)?
8. 8.⏱️ A video has three clips of 9, 29 and 36 seconds. How long is the video (in seconds)?
9. 9.⏱️ A video has three clips of 17, 12 and 19 seconds. How long is the video (in seconds)?
10. 10.⏱️ How many seconds is 5 minutes 12 seconds?
11. 11.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
12. 12.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the longest clip (d) the sum of the clips
13. 13.⏱️ A 132-second clip is sped up to 4× speed. How long does it last now (in seconds)?
14. 14.⏱️ How many seconds is 7 minutes 44 seconds?
15. 15.⏱️ Your video must be 60 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
16. 16.⏱️ How many seconds is 4 minutes 16 seconds?
17. 17.⏱️ A video has three clips of 5, 51 and 11 seconds. How long is the video (in seconds)?
18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
19. 19.⏱️ Your video must be 180 seconds long. Your clips add up to 141 seconds. How many more seconds of video do you need?
20. 20.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
21. 21.⏱️ How many seconds is 3 minutes 45 seconds?
22. 22.⏱️ How many seconds is 5 minutes 5 seconds?
23. 23.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 3 min 15 s (c) 1 min 15 s (d) 2 min 15 s
24. 24.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
25. 25.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
26. 26.⏱️ A video has three clips of 52, 52 and 12 seconds. How long is the video (in seconds)?
27. 27.⏱️ Your video must be 90 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
28. 28.⏱️ A video has three clips of 20, 21 and 43 seconds. How long is the video (in seconds)?
29. 29.⏱️ How many seconds is 8 minutes 12 seconds?
30. 30.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 4 min 55 s (c) 3 min 25 s (d) 3 min 55 s
31. 31.⏱️ A video has three clips of 44, 29 and 55 seconds. How long is the video (in seconds)?
32. 32.⏱️ Your video must be 180 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
33. 33.⏱️ A video has three clips of 50, 33 and 24 seconds. How long is the video (in seconds)?
34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
35. 35.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 10 s (c) 1 min 10 s (d) 1 min 40 s
36. 36.⏱️ A video has three clips of 51, 6 and 40 seconds. How long is the video (in seconds)?
37. 37.⏱️ Your video must be 90 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
38. 38.⏱️ A video has three clips of 60, 11 and 19 seconds. How long is the video (in seconds)?
39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
40. 40.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 2 min 50 s (c) 4 min 10 s (d) 5 min 10 s

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