Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 140 · 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.⏱️ How many seconds is 8 minutes 23 seconds?
2. 2.⏱️ How many seconds is 1 minute 15 seconds?
3. 3.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 6 min 25 s (c) 5 min 55 s (d) 5 min 25 s
4. 4.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length
5. 5.⏱️ How many seconds is 2 minutes 20 seconds?
6. 6.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
7. 7.⏱️ A video has three clips of 59, 25 and 13 seconds. How long is the video (in seconds)?
8. 8.⏱️ How many seconds is 7 minutes 49 seconds?
9. 9.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
10. 10.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
11. 11.⏱️ A 24-second clip is sped up to 3× speed. How long does it last now (in seconds)?
12. 12.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
13. 13.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
14. 14.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) the shortest clip (d) always 1 minute
15. 15.⏱️ A video has three clips of 56, 8 and 8 seconds. How long is the video (in seconds)?
16. 16.⏱️ How many seconds is 6 minutes 32 seconds?
17. 17.⏱️ How many seconds is 4 minutes 19 seconds?
18. 18.⏱️ A video has three clips of 30, 12 and 56 seconds. How long is the video (in seconds)?
19. 19.⏱️ How many seconds is 4 minutes 1 second?
20. 20.⏱️ How many seconds is 1 minute 24 seconds?
21. 21.⏱️ A video has three clips of 9, 17 and 12 seconds. How long is the video (in seconds)?
22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
23. 23.⏱️ A video has three clips of 34, 42 and 51 seconds. How long is the video (in seconds)?
24. 24.⏱️ Your video must be 60 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
26. 26.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 1 min 85 s (c) 3 min 5 s (d) 3 min 35 s
27. 27.⏱️ A video has three clips of 56, 30 and 35 seconds. How long is the video (in seconds)?
28. 28.⏱️ A video has three clips of 6, 53 and 46 seconds. How long is the video (in seconds)?
29. 29.⏱️ A video has three clips of 50, 42 and 24 seconds. How long is the video (in seconds)?
30. 30.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 10 min 45 s (c) 9 min 45 s (d) 5 min 85 s
31. 31.⏱️ A video has three clips of 39, 20 and 55 seconds. How long is the video (in seconds)?
32. 32.⏱️ A 66-second clip is sped up to 3× speed. How long does it last now (in seconds)?
33. 33.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
34. 34.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
35. 35.⏱️ A video has three clips of 14, 54 and 59 seconds. How long is the video (in seconds)?
36. 36.⏱️ A video has three clips of 38, 5 and 17 seconds. How long is the video (in seconds)?
37. 37.⏱️ How many seconds is 1 minute 13 seconds?
38. 38.⏱️ A 36-second clip is sped up to 4× speed. How long does it last now (in seconds)?
39. 39.⏱️ A video has three clips of 38, 7 and 43 seconds. How long is the video (in seconds)?
40. 40.⏱️ Your video must be 120 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?

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