Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 147 · 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 has three clips of 35, 56 and 36 seconds. How long is the video (in seconds)?
2. 2.⏱️ Your video must be 90 seconds long. Your clips add up to 56 seconds. How many more seconds of video do you need?
3. 3.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
4. 4.⏱️ Your video must be 180 seconds long. Your clips add up to 154 seconds. How many more seconds of video do you need?
5. 5.⏱️ A video has three clips of 49, 15 and 33 seconds. How long is the video (in seconds)?
6. 6.⏱️ A 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
7. 7.⏱️ An 84-second clip is sped up to 3× speed. How long does it last now (in seconds)?
8. 8.⏱️ How many seconds is 1 minute 1 second?
9. 9.⏱️ A video is 65 seconds long. How long is that in minutes and seconds? (a) 1 min 5 s (b) 1 min 35 s (c) 2 min 5 s (d) 3 min 5 s
10. 10.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 2 min 0 s (c) 3 min 0 s (d) 1 min 20 s
11. 11.⏱️ A 144-second clip is sped up to 4× speed. How long does it last now (in seconds)?
12. 12.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 3 min 55 s (c) 4 min 25 s (d) 2 min 5 s
13. 13.⏱️ Your video must be 180 seconds long. Your clips add up to 30 seconds. How many more seconds of video do you need?
14. 14.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 5 min 55 s (b) 10 min 15 s (c) 9 min 45 s (d) 9 min 15 s
15. 15.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
16. 16.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 1 min 55 s (c) 1 min 15 s (d) 1 min 25 s
17. 17.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
18. 18.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
19. 19.⏱️ A 57-second clip is sped up to 3× speed. How long does it last now (in seconds)?
20. 20.⏱️ How many seconds is 5 minutes 8 seconds?
21. 21.⏱️ A video is 315 seconds long. How long is that in minutes and seconds? (a) 5 min 15 s (b) 3 min 15 s (c) 5 min 45 s (d) 6 min 15 s
22. 22.⏱️ A video has three clips of 56, 25 and 16 seconds. How long is the video (in seconds)?
23. 23.⏱️ How many seconds is 2 minutes 50 seconds?
24. 24.⏱️ How many seconds is 7 minutes 34 seconds?
25. 25.⏱️ A video is 220 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 3 min 40 s (c) 4 min 40 s (d) 2 min 20 s
26. 26.⏱️ How many seconds is 8 minutes 30 seconds?
27. 27.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
28. 28.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
29. 29.⏱️ How many seconds is 6 minutes 39 seconds?
30. 30.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
31. 31.⏱️ A video has three clips of 14, 18 and 18 seconds. How long is the video (in seconds)?
32. 32.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ How many seconds is 9 minutes 19 seconds?
35. 35.⏱️ Your video must be 90 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
36. 36.⏱️ A video has three clips of 14, 11 and 31 seconds. How long is the video (in seconds)?
37. 37.⏱️ A 68-second clip is sped up to 4× speed. How long does it last now (in seconds)?
38. 38.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 4 min 40 s (b) 4 min 10 s (c) 5 min 10 s (d) 2 min 50 s
39. 39.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
40. 40.⏱️ Your video must be 60 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?

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