Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 325 · 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 285 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 2 min 85 s (c) 5 min 45 s (d) 4 min 45 s
2. 2.⏱️ How many seconds is 2 minutes 20 seconds?
3. 3.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) silent (d) twice as long
4. 4.⏱️ How many seconds is 5 minutes 56 seconds?
5. 5.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 1 min 35 s (b) 2 min 45 s (c) 2 min 15 s (d) 3 min 15 s
6. 6.⏱️ Your video must be 180 seconds long. Your clips add up to 127 seconds. How many more seconds of video do you need?
7. 7.⏱️ How many seconds is 9 minutes 8 seconds?
8. 8.⏱️ How many seconds is 9 minutes 20 seconds?
9. 9.⏱️ A video has three clips of 30, 58 and 45 seconds. How long is the video (in seconds)?
10. 10.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 7 min 55 s (b) 4 min 75 s (c) 7 min 25 s (d) 8 min 55 s
11. 11.⏱️ How many seconds is 7 minutes 52 seconds?
12. 12.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) always 1 minute (d) the shortest clip
13. 13.⏱️ A video has three clips of 52, 27 and 8 seconds. How long is the video (in seconds)?
14. 14.⏱️ A video has three clips of 11, 50 and 28 seconds. How long is the video (in seconds)?
15. 15.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 10 (d) 60
16. 16.⏱️ A video has three clips of 45, 13 and 10 seconds. How long is the video (in seconds)?
17. 17.⏱️ How many seconds is 6 minutes 37 seconds?
18. 18.⏱️ Your video must be 120 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 83 seconds. How many more seconds of video do you need?
20. 20.⏱️ How many seconds is 6 minutes 10 seconds?
21. 21.⏱️ How many seconds is 3 minutes 21 seconds?
22. 22.⏱️ How many seconds is 1 minute 16 seconds?
23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
24. 24.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
25. 25.⏱️ A 28-second clip is sped up to 4× speed. How long does it last now (in seconds)?
26. 26.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 7 min 50 s (b) 8 min 50 s (c) 7 min 20 s (d) 4 min 70 s
27. 27.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 1 min 90 s (b) 3 min 10 s (c) 4 min 10 s (d) 3 min 40 s
28. 28.⏱️ A video has three clips of 51, 38 and 29 seconds. How long is the video (in seconds)?
29. 29.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 5 min 15 s (c) 4 min 15 s (d) 2 min 55 s
30. 30.⏱️ A video has three clips of 17, 22 and 14 seconds. How long is the video (in seconds)?
31. 31.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
32. 32.⏱️ A video is 140 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 1 min 40 s (c) 2 min 20 s (d) 3 min 20 s
33. 33.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 10 min 45 s (b) 5 min 85 s (c) 9 min 15 s (d) 9 min 45 s
34. 34.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 1 min 65 s (c) 2 min 45 s (d) 2 min 15 s
35. 35.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
36. 36.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
37. 37.⏱️ How many seconds is 5 minutes 39 seconds?
38. 38.⏱️ A video has three clips of 53, 11 and 22 seconds. How long is the video (in seconds)?
39. 39.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
40. 40.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 1 min 0 s (c) 1 min 30 s (d) 3 min 0 s

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