Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 271 · 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.⏱️ Your video must be 180 seconds long. Your clips add up to 110 seconds. How many more seconds of video do you need?
2. 2.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
3. 3.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 85 s (c) 3 min 35 s (d) 4 min 5 s
4. 4.⏱️ How many seconds is 1 minute 11 seconds?
5. 5.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) twice as long (d) silent
6. 6.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 2 min 20 s (c) 1 min 50 s (d) 1 min 20 s
7. 7.⏱️ A video has three clips of 38, 16 and 25 seconds. How long is the video (in seconds)?
8. 8.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 2 min 70 s (b) 5 min 30 s (c) 4 min 30 s (d) 4 min 0 s
9. 9.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
10. 10.⏱️ A video has three clips of 10, 42 and 13 seconds. How long is the video (in seconds)?
11. 11.⏱️ How many seconds is 8 minutes 47 seconds?
12. 12.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) always 1 minute (d) the shortest clip
13. 13.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 2 min 45 s (c) 3 min 45 s (d) 1 min 65 s
14. 14.⏱️ How many seconds is 8 minutes 2 seconds?
15. 15.⏱️ How many seconds is 4 minutes 32 seconds?
16. 16.⏱️ Your video must be 90 seconds long. Your clips add up to 52 seconds. How many more seconds of video do you need?
17. 17.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 8 min 45 s (b) 9 min 45 s (c) 5 min 25 s (d) 8 min 15 s
18. 18.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
19. 19.⏱️ A video has three clips of 34, 55 and 60 seconds. How long is the video (in seconds)?
20. 20.⏱️ Your video must be 120 seconds long. Your clips add up to 70 seconds. How many more seconds of video do you need?
21. 21.⏱️ A video has three clips of 16, 54 and 13 seconds. How long is the video (in seconds)?
22. 22.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
23. 23.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
24. 24.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
25. 25.⏱️ How many seconds is 9 minutes 7 seconds?
26. 26.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
27. 27.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 2 min 95 s (b) 5 min 55 s (c) 4 min 25 s (d) 4 min 55 s
28. 28.⏱️ Your video must be 120 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
29. 29.⏱️ How many seconds is 3 minutes 43 seconds?
30. 30.⏱️ A video has three clips of 46, 51 and 25 seconds. How long is the video (in seconds)?
31. 31.⏱️ How many seconds is 9 minutes 41 seconds?
32. 32.⏱️ A video has three clips of 47, 40 and 46 seconds. How long is the video (in seconds)?
33. 33.⏱️ A video has three clips of 54, 34 and 55 seconds. How long is the video (in seconds)?
34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 76 seconds. How many more seconds of video do you need?
35. 35.⏱️ How many seconds is 3 minutes 2 seconds?
36. 36.⏱️ How many seconds is 1 minute 58 seconds?
37. 37.⏱️ A video has three clips of 10, 60 and 39 seconds. How long is the video (in seconds)?
38. 38.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 81 seconds. How many more seconds of video do you need?
40. 40.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?

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