Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 110 · 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 6 minutes 33 seconds?
2. 2.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 8 min 35 s (b) 7 min 5 s (c) 4 min 55 s (d) 7 min 35 s
3. 3.⏱️ How many seconds is 3 minutes 38 seconds?
4. 4.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
5. 5.⏱️ Your video must be 120 seconds long. Your clips add up to 68 seconds. How many more seconds of video do you need?
6. 6.⏱️ A video has three clips of 17, 9 and 56 seconds. How long is the video (in seconds)?
7. 7.⏱️ Your video must be 120 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
8. 8.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 4 min 40 s (c) 4 min 10 s (d) 2 min 50 s
9. 9.⏱️ A video has three clips of 15, 31 and 41 seconds. How long is the video (in seconds)?
10. 10.⏱️ How many seconds is 2 minutes 44 seconds?
11. 11.⏱️ A 44-second clip is sped up to 2× speed. How long does it last now (in seconds)?
12. 12.⏱️ A video has three clips of 51, 32 and 14 seconds. How long is the video (in seconds)?
13. 13.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) the sum of the clips (c) the shortest clip (d) always 1 minute
14. 14.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) silent (d) half as long
15. 15.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
16. 16.⏱️ An 18-second clip is sped up to 2× speed. How long does it last now (in seconds)?
17. 17.⏱️ A video has three clips of 14, 27 and 40 seconds. How long is the video (in seconds)?
18. 18.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
19. 19.⏱️ How many seconds are in 1 minute? (a) 60 (b) 10 (c) 100 (d) 30
20. 20.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 7 min 40 s (c) 8 min 10 s (d) 7 min 10 s
21. 21.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 3 min 25 s (c) 2 min 5 s (d) 3 min 55 s
22. 22.⏱️ Your video must be 60 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
23. 23.⏱️ Your video must be 90 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
24. 24.⏱️ How many seconds is 8 minutes 20 seconds?
25. 25.⏱️ How many seconds is 2 minutes 46 seconds?
26. 26.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
27. 27.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
28. 28.⏱️ A video has three clips of 30, 20 and 53 seconds. How long is the video (in seconds)?
29. 29.⏱️ A video has three clips of 23, 55 and 11 seconds. How long is the video (in seconds)?
30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
31. 31.⏱️ A 120-second clip is sped up to 3× speed. How long does it last now (in seconds)?
32. 32.⏱️ A 70-second clip is sped up to 2× speed. How long does it last now (in seconds)?
33. 33.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
35. 35.⏱️ Your video must be 120 seconds long. Your clips add up to 28 seconds. How many more seconds of video do you need?
36. 36.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
37. 37.⏱️ A video has three clips of 21, 22 and 25 seconds. How long is the video (in seconds)?
38. 38.⏱️ Your video must be 120 seconds long. Your clips add up to 41 seconds. How many more seconds of video do you need?
39. 39.⏱️ Your video must be 180 seconds long. Your clips add up to 155 seconds. How many more seconds of video do you need?
40. 40.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?

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