Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 301 · 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 9 minutes 33 seconds?
2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 130 seconds. How many more seconds of video do you need?
3. 3.⏱️ How many seconds is 4 minutes 27 seconds?
4. 4.⏱️ Your video must be 60 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
5. 5.⏱️ How many seconds is 8 minutes 38 seconds?
6. 6.⏱️ Speeding a clip up to 2× makes it … (a) half as long (b) the same length (c) silent (d) twice as long
7. 7.⏱️ A video has three clips of 60, 46 and 44 seconds. How long is the video (in seconds)?
8. 8.⏱️ How many seconds is 7 minutes 42 seconds?
9. 9.⏱️ A 66-second clip is sped up to 2× speed. How long does it last now (in seconds)?
10. 10.⏱️ A video has three clips of 55, 34 and 35 seconds. How long is the video (in seconds)?
11. 11.⏱️ A video has three clips of 14, 25 and 12 seconds. How long is the video (in seconds)?
12. 12.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
13. 13.⏱️ A 58-second clip is sped up to 2× speed. How long does it last now (in seconds)?
14. 14.⏱️ A video has three clips of 49, 55 and 39 seconds. How long is the video (in seconds)?
15. 15.⏱️ Your video must be 120 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
16. 16.⏱️ Your video must be 180 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
17. 17.⏱️ Your video must be 90 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
18. 18.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the sum of the clips (d) the longest clip
19. 19.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
20. 20.⏱️ A video has three clips of 41, 60 and 37 seconds. How long is the video (in seconds)?
21. 21.⏱️ A video has three clips of 10, 39 and 34 seconds. How long is the video (in seconds)?
22. 22.⏱️ How many seconds is 8 minutes 24 seconds?
23. 23.⏱️ A video has three clips of 22, 44 and 14 seconds. How long is the video (in seconds)?
24. 24.⏱️ How many seconds is 7 minutes 18 seconds?
25. 25.⏱️ A video has three clips of 56, 36 and 46 seconds. How long is the video (in seconds)?
26. 26.⏱️ A 69-second clip is sped up to 3× speed. How long does it last now (in seconds)?
27. 27.⏱️ A video has three clips of 57, 37 and 45 seconds. How long is the video (in seconds)?
28. 28.⏱️ A video is 180 seconds long. How long is that in minutes and seconds? (a) 3 min 30 s (b) 3 min 0 s (c) 1 min 80 s (d) 4 min 0 s
29. 29.⏱️ How many seconds is 7 minutes 13 seconds?
30. 30.⏱️ How many seconds is 4 minutes 35 seconds?
31. 31.⏱️ How many seconds is 9 minutes 37 seconds?
32. 32.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ How many seconds is 9 minutes 21 seconds?
34. 34.⏱️ How many seconds is 3 minutes 54 seconds?
35. 35.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 5 min 85 s (c) 10 min 45 s (d) 9 min 45 s
36. 36.⏱️ A video has three clips of 51, 7 and 48 seconds. How long is the video (in seconds)?
37. 37.⏱️ A 56-second clip is sped up to 4× speed. How long does it last now (in seconds)?
38. 38.⏱️ A 42-second clip is sped up to 2× speed. How long does it last now (in seconds)?
39. 39.⏱️ A video is 520 seconds long. How long is that in minutes and seconds? (a) 5 min 20 s (b) 8 min 10 s (c) 9 min 40 s (d) 8 min 40 s
40. 40.⏱️ A video has three clips of 11, 46 and 41 seconds. How long is the video (in seconds)?

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