Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 315 · 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 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
2. 2.⏱️ Your video must be 90 seconds long. Your clips add up to 79 seconds. How many more seconds of video do you need?
3. 3.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
4. 4.⏱️ Your video must be 90 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
5. 5.⏱️ Your video must be 60 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
7. 7.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 60 (d) 30
8. 8.⏱️ An 87-second clip is sped up to 3× speed. How long does it last now (in seconds)?
9. 9.⏱️ 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
10. 10.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
11. 11.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
12. 12.⏱️ A video has three clips of 19, 10 and 16 seconds. How long is the video (in seconds)?
13. 13.⏱️ A video has three clips of 13, 32 and 39 seconds. How long is the video (in seconds)?
14. 14.⏱️ A video has three clips of 59, 10 and 59 seconds. How long is the video (in seconds)?
15. 15.⏱️ Your video must be 120 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
16. 16.⏱️ How many seconds is 1 minute 9 seconds?
17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
18. 18.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
19. 19.⏱️ How many seconds is 1 minute 37 seconds?
20. 20.⏱️ A video has three clips of 13, 51 and 19 seconds. How long is the video (in seconds)?
21. 21.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
22. 22.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 80 seconds. How many more seconds of video do you need?
25. 25.⏱️ Your video must be 180 seconds long. Your clips add up to 94 seconds. How many more seconds of video do you need?
26. 26.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
27. 27.⏱️ A video has three clips of 48, 16 and 42 seconds. How long is the video (in seconds)?
28. 28.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 1 min 45 s (b) 2 min 15 s (c) 3 min 15 s (d) 1 min 15 s
29. 29.⏱️ How many seconds is 3 minutes 18 seconds?
30. 30.⏱️ How many seconds is 1 minute 40 seconds?
31. 31.⏱️ A 75-second clip is sped up to 3× speed. How long does it last now (in seconds)?
32. 32.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 9 min 25 s (b) 5 min 5 s (c) 8 min 25 s (d) 8 min 55 s
33. 33.⏱️ How many seconds is 5 minutes 43 seconds?
34. 34.⏱️ Your video must be 90 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
35. 35.⏱️ A 44-second clip is sped up to 4× speed. How long does it last now (in seconds)?
36. 36.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 4 min 75 s (b) 8 min 55 s (c) 7 min 55 s (d) 7 min 25 s
37. 37.⏱️ Your video must be 180 seconds long. Your clips add up to 34 seconds. How many more seconds of video do you need?
38. 38.⏱️ A video is 65 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 2 min 5 s (c) 1 min 35 s (d) 1 min 5 s
39. 39.⏱️ How many seconds is 3 minutes 14 seconds?
40. 40.⏱️ How many seconds is 6 minutes 49 seconds?

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