Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 63 · 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 video is 590 seconds long. How long is that in minutes and seconds? (a) 10 min 50 s (b) 9 min 20 s (c) 9 min 50 s (d) 5 min 90 s
2. 2.⏱️ How many seconds is 7 minutes 22 seconds?
3. 3.⏱️ A video has three clips of 51, 43 and 11 seconds. How long is the video (in seconds)?
4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
5. 5.⏱️ A video is 425 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 7 min 35 s (c) 8 min 5 s (d) 7 min 5 s
6. 6.⏱️ A 16-second clip is sped up to 2× speed. How long does it last now (in seconds)?
7. 7.⏱️ Your video must be 180 seconds long. Your clips add up to 103 seconds. How many more seconds of video do you need?
8. 8.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
9. 9.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
10. 10.⏱️ Your video must be 90 seconds long. Your clips add up to 81 seconds. How many more seconds of video do you need?
11. 11.⏱️ Your video must be 90 seconds long. Your clips add up to 32 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 sum of the clips (b) the shortest clip (c) the longest clip (d) always 1 minute
13. 13.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
14. 14.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
15. 15.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 50 seconds. How many more seconds of video do you need?
17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
18. 18.⏱️ Your video must be 90 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
19. 19.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 7 min 20 s (c) 7 min 50 s (d) 4 min 40 s
20. 20.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 30 s (c) 3 min 0 s (d) 2 min 0 s
21. 21.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 10 seconds. How many more seconds of video do you need?
23. 23.⏱️ A video has three clips of 58, 8 and 46 seconds. How long is the video (in seconds)?
24. 24.⏱️ Your video must be 90 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
25. 25.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
26. 26.⏱️ A video has three clips of 48, 51 and 30 seconds. How long is the video (in seconds)?
27. 27.⏱️ How many seconds is 3 minutes 44 seconds?
28. 28.⏱️ How many seconds is 6 minutes 52 seconds?
29. 29.⏱️ How many seconds is 4 minutes 19 seconds?
30. 30.⏱️ How many seconds is 4 minutes 29 seconds?
31. 31.⏱️ How many seconds is 8 minutes 33 seconds?
32. 32.⏱️ A video has three clips of 15, 32 and 18 seconds. How long is the video (in seconds)?
33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 99 seconds. How many more seconds of video do you need?
34. 34.⏱️ Your video must be 60 seconds long. Your clips add up to 53 seconds. How many more seconds of video do you need?
35. 35.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
36. 36.⏱️ A 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
37. 37.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 3 min 55 s (c) 2 min 35 s (d) 3 min 25 s
38. 38.⏱️ A video has three clips of 44, 50 and 59 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video has three clips of 30, 35 and 29 seconds. How long is the video (in seconds)?
40. 40.⏱️ A 52-second clip is sped up to 4× speed. How long does it last now (in seconds)?

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