Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 29 · 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 60 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
3. 3.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 60 (d) 100
4. 4.⏱️ A video has three clips of 17, 59 and 10 seconds. How long is the video (in seconds)?
5. 5.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
6. 6.⏱️ Your video must be 90 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
7. 7.⏱️ How many seconds is 4 minutes 42 seconds?
8. 8.⏱️ A video has three clips of 18, 6 and 34 seconds. How long is the video (in seconds)?
9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
10. 10.⏱️ How many seconds is 9 minutes 16 seconds?
11. 11.⏱️ How many seconds is 1 minute 41 seconds?
12. 12.⏱️ Your video must be 120 seconds long. Your clips add up to 63 seconds. How many more seconds of video do you need?
13. 13.⏱️ A video has three clips of 56, 20 and 17 seconds. How long is the video (in seconds)?
14. 14.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
15. 15.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
16. 16.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
17. 17.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 1 min 20 s (c) 3 min 0 s (d) 2 min 0 s
18. 18.⏱️ How many seconds is 2 minutes 57 seconds?
19. 19.⏱️ A 33-second clip is sped up to 3× speed. How long does it last now (in seconds)?
20. 20.⏱️ Your video must be 60 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
22. 22.⏱️ 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
23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
24. 24.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
25. 25.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
26. 26.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
27. 27.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 70 seconds. How many more seconds of video do you need?
29. 29.⏱️ A video has three clips of 49, 19 and 30 seconds. How long is the video (in seconds)?
30. 30.⏱️ Your video must be 90 seconds long. Your clips add up to 70 seconds. How many more seconds of video do you need?
31. 31.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
32. 32.⏱️ Your video must be 120 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
33. 33.⏱️ A video has three clips of 54, 46 and 24 seconds. How long is the video (in seconds)?
34. 34.⏱️ How many seconds is 1 minute 42 seconds?
35. 35.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 8 min 35 s (b) 9 min 35 s (c) 5 min 15 s (d) 8 min 5 s
36. 36.⏱️ Your video must be 90 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
37. 37.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
38. 38.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
39. 39.⏱️ 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
40. 40.⏱️ Your video must be 60 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?

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