Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 336 · 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.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) always 1 minute (d) the sum of the clips
2. 2.⏱️ A video has three clips of 58, 22 and 23 seconds. How long is the video (in seconds)?
3. 3.⏱️ A video is 400 seconds long. How long is that in minutes and seconds? (a) 6 min 40 s (b) 6 min 10 s (c) 7 min 40 s (d) 4 min 0 s
4. 4.⏱️ How many seconds is 2 minutes 32 seconds?
5. 5.⏱️ A 144-second clip is sped up to 4× speed. How long does it last now (in seconds)?
6. 6.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 25 s (c) 3 min 55 s (d) 4 min 25 s
7. 7.⏱️ A video has three clips of 57, 34 and 46 seconds. How long is the video (in seconds)?
8. 8.⏱️ How many seconds is 4 minutes 22 seconds?
9. 9.⏱️ How many seconds are in 1 minute? (a) 30 (b) 10 (c) 100 (d) 60
10. 10.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
11. 11.⏱️ A 56-second clip is sped up to 2× speed. How long does it last now (in seconds)?
12. 12.⏱️ How many seconds is 5 minutes 41 seconds?
13. 13.⏱️ A 69-second clip is sped up to 3× speed. How long does it last now (in seconds)?
14. 14.⏱️ An 18-second clip is sped up to 3× speed. How long does it last now (in seconds)?
15. 15.⏱️ A video has three clips of 44, 24 and 43 seconds. How long is the video (in seconds)?
16. 16.⏱️ How many seconds is 6 minutes 30 seconds?
17. 17.⏱️ A 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
18. 18.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 2 min 35 s (c) 2 min 5 s (d) 1 min 25 s
19. 19.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
20. 20.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
21. 21.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 4 min 80 s (b) 9 min 0 s (c) 8 min 30 s (d) 8 min 0 s
22. 22.⏱️ Your video must be 120 seconds long. Your clips add up to 104 seconds. How many more seconds of video do you need?
23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 67 seconds. How many more seconds of video do you need?
24. 24.⏱️ A 20-second clip is sped up to 4× speed. How long does it last now (in seconds)?
25. 25.⏱️ Your video must be 120 seconds long. Your clips add up to 81 seconds. How many more seconds of video do you need?
26. 26.⏱️ A video has three clips of 39, 46 and 46 seconds. How long is the video (in seconds)?
27. 27.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 1 min 20 s (b) 2 min 0 s (c) 2 min 30 s (d) 3 min 0 s
28. 28.⏱️ A video has three clips of 32, 26 and 10 seconds. How long is the video (in seconds)?
29. 29.⏱️ A video has three clips of 54, 48 and 40 seconds. How long is the video (in seconds)?
30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
32. 32.⏱️ A 54-second clip is sped up to 3× speed. How long does it last now (in seconds)?
33. 33.⏱️ Your video must be 90 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
34. 34.⏱️ A 20-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
35. 35.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 5 min 25 s (b) 9 min 45 s (c) 8 min 15 s (d) 8 min 45 s
36. 36.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
37. 37.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
38. 38.⏱️ A video has three clips of 47, 14 and 38 seconds. How long is the video (in seconds)?
39. 39.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
40. 40.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent

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