Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 348 · 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 are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
2. 2.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
3. 3.⏱️ A video has three clips of 32, 24 and 9 seconds. How long is the video (in seconds)?
4. 4.⏱️ How many seconds is 1 minute 7 seconds?
5. 5.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) twice as long (d) half as long
6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
7. 7.⏱️ A video has three clips of 17, 24 and 17 seconds. How long is the video (in seconds)?
8. 8.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
9. 9.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 7 min 5 s (b) 6 min 5 s (c) 3 min 65 s (d) 6 min 35 s
10. 10.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
11. 11.⏱️ Your video must be 180 seconds long. Your clips add up to 172 seconds. How many more seconds of video do you need?
12. 12.⏱️ A video is 325 seconds long. How long is that in minutes and seconds? (a) 3 min 25 s (b) 5 min 25 s (c) 5 min 55 s (d) 6 min 25 s
13. 13.⏱️ A video has three clips of 16, 17 and 38 seconds. How long is the video (in seconds)?
14. 14.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
15. 15.⏱️ How many seconds is 5 minutes 53 seconds?
16. 16.⏱️ A video has three clips of 21, 26 and 39 seconds. How long is the video (in seconds)?
17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
18. 18.⏱️ A 14-second clip is sped up to 2× speed. How long does it last now (in seconds)?
19. 19.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the shortest clip (c) the sum of the clips (d) always 1 minute
20. 20.⏱️ A video has three clips of 37, 37 and 40 seconds. How long is the video (in seconds)?
21. 21.⏱️ How many seconds is 2 minutes 11 seconds?
22. 22.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
23. 23.⏱️ Your video must be 90 seconds long. Your clips add up to 61 seconds. How many more seconds of video do you need?
24. 24.⏱️ A video has three clips of 44, 57 and 37 seconds. How long is the video (in seconds)?
25. 25.⏱️ A 39-second clip is sped up to 3× speed. How long does it last now (in seconds)?
26. 26.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 9 min 30 s (c) 8 min 0 s (d) 8 min 30 s
27. 27.⏱️ How many seconds is 3 minutes 39 seconds?
28. 28.⏱️ A video has three clips of 53, 47 and 14 seconds. How long is the video (in seconds)?
29. 29.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 4 min 90 s (b) 8 min 40 s (c) 9 min 10 s (d) 8 min 10 s
30. 30.⏱️ A 38-second clip is sped up to 2× speed. How long does it last now (in seconds)?
31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 133 seconds. How many more seconds of video do you need?
32. 32.⏱️ A video is 370 seconds long. How long is that in minutes and seconds? (a) 7 min 10 s (b) 6 min 40 s (c) 3 min 70 s (d) 6 min 10 s
33. 33.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
34. 34.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
35. 35.⏱️ Your video must be 60 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
36. 36.⏱️ Your video must be 120 seconds long. Your clips add up to 74 seconds. How many more seconds of video do you need?
37. 37.⏱️ A video is 450 seconds long. How long is that in minutes and seconds? (a) 8 min 30 s (b) 7 min 30 s (c) 7 min 0 s (d) 4 min 50 s
38. 38.⏱️ A 30-second clip is sped up to 3× speed. How long does it last now (in seconds)?
39. 39.⏱️ How many seconds is 9 minutes 50 seconds?
40. 40.⏱️ A video has three clips of 54, 29 and 52 seconds. How long is the video (in seconds)?

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