Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 319 · 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 is 3 minutes 21 seconds?
2. 2.⏱️ How many seconds is 8 minutes 13 seconds?
3. 3.⏱️ A video is 155 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 3 min 35 s (c) 2 min 5 s (d) 1 min 55 s
4. 4.⏱️ A video has three clips of 44, 52 and 52 seconds. How long is the video (in seconds)?
5. 5.⏱️ A video has three clips of 23, 48 and 49 seconds. How long is the video (in seconds)?
6. 6.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the longest clip (d) the sum of the clips
7. 7.⏱️ A video is 485 seconds long. How long is that in minutes and seconds? (a) 8 min 5 s (b) 4 min 85 s (c) 8 min 35 s (d) 9 min 5 s
8. 8.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
9. 9.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
10. 10.⏱️ A 78-second clip is sped up to 2× speed. How long does it last now (in seconds)?
11. 11.⏱️ How many seconds is 1 minute 10 seconds?
12. 12.⏱️ Your video must be 60 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
13. 13.⏱️ A video is 500 seconds long. How long is that in minutes and seconds? (a) 9 min 20 s (b) 8 min 20 s (c) 8 min 50 s (d) 5 min 0 s
14. 14.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 6 min 10 s (c) 5 min 40 s (d) 3 min 10 s
15. 15.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) silent (d) the same length
16. 16.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
17. 17.⏱️ How many seconds is 8 minutes 45 seconds?
18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
19. 19.⏱️ A 40-second clip is sped up to 4× speed. How long does it last now (in seconds)?
20. 20.⏱️ Your video must be 180 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
21. 21.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 7 min 20 s (b) 8 min 50 s (c) 4 min 70 s (d) 7 min 50 s
22. 22.⏱️ How many seconds are in 1 minute? (a) 100 (b) 60 (c) 30 (d) 10
23. 23.⏱️ How many seconds is 1 minute 30 seconds?
24. 24.⏱️ A video has three clips of 10, 17 and 36 seconds. How long is the video (in seconds)?
25. 25.⏱️ Your video must be 180 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
26. 26.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 5 min 45 s (c) 9 min 35 s (d) 10 min 5 s
27. 27.⏱️ A video has three clips of 16, 60 and 10 seconds. How long is the video (in seconds)?
28. 28.⏱️ Your video must be 60 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
29. 29.⏱️ Your video must be 120 seconds long. Your clips add up to 112 seconds. How many more seconds of video do you need?
30. 30.⏱️ 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
31. 31.⏱️ A video has three clips of 36, 60 and 43 seconds. How long is the video (in seconds)?
32. 32.⏱️ How many seconds is 9 minutes 10 seconds?
33. 33.⏱️ A video has three clips of 39, 28 and 31 seconds. How long is the video (in seconds)?
34. 34.⏱️ Your video must be 60 seconds long. Your clips add up to 5 seconds. How many more seconds of video do you need?
35. 35.⏱️ Your video must be 180 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
36. 36.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 5 s (c) 2 min 35 s (d) 1 min 25 s
37. 37.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
38. 38.⏱️ How many seconds is 4 minutes 38 seconds?
39. 39.⏱️ A 117-second clip is sped up to 3× speed. How long does it last now (in seconds)?
40. 40.⏱️ Your video must be 60 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?

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