Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 108 · 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 42-second clip is sped up to 3× speed. How long does it last now (in seconds)?
2. 2.⏱️ A video is 360 seconds long. How long is that in minutes and seconds? (a) 6 min 0 s (b) 7 min 0 s (c) 3 min 60 s (d) 6 min 30 s
3. 3.⏱️ Your video must be 90 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
4. 4.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
5. 5.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 9 min 10 s (c) 9 min 40 s (d) 10 min 10 s
6. 6.⏱️ A video has three clips of 14, 12 and 48 seconds. How long is the video (in seconds)?
7. 7.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 60 (d) 30
8. 8.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
9. 9.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
10. 10.⏱️ A 140-second clip is sped up to 4× speed. How long does it last now (in seconds)?
11. 11.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) the longest clip (d) always 1 minute
12. 12.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
13. 13.⏱️ A 108-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 33, 44 and 17 seconds. How long is the video (in seconds)?
16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
17. 17.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 3 min 5 s (c) 5 min 5 s (d) 6 min 5 s
18. 18.⏱️ A video has three clips of 11, 26 and 55 seconds. How long is the video (in seconds)?
19. 19.⏱️ Your video must be 60 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
20. 20.⏱️ How many seconds is 2 minutes 7 seconds?
21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
22. 22.⏱️ A video has three clips of 60, 15 and 60 seconds. How long is the video (in seconds)?
23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
24. 24.⏱️ A video has three clips of 29, 58 and 20 seconds. How long is the video (in seconds)?
25. 25.⏱️ A video has three clips of 51, 29 and 7 seconds. How long is the video (in seconds)?
26. 26.⏱️ How many seconds is 5 minutes 45 seconds?
27. 27.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 4 min 40 s (c) 2 min 50 s (d) 4 min 10 s
28. 28.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
29. 29.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
30. 30.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
31. 31.⏱️ A 111-second clip is sped up to 3× speed. How long does it last now (in seconds)?
32. 32.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ How many seconds is 5 minutes 17 seconds?
34. 34.⏱️ How many seconds is 1 minute 53 seconds?
35. 35.⏱️ How many seconds is 7 minutes 8 seconds?
36. 36.⏱️ How many seconds is 9 minutes 59 seconds?
37. 37.⏱️ How many seconds is 9 minutes 20 seconds?
38. 38.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
39. 39.⏱️ A video has three clips of 7, 38 and 49 seconds. How long is the video (in seconds)?
40. 40.⏱️ A video has three clips of 19, 31 and 57 seconds. How long is the video (in seconds)?

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