Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 282 · 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 156-second clip is sped up to 4× speed. How long does it last now (in seconds)?
2. 2.⏱️ A video is 360 seconds long. How long is that in minutes and seconds? (a) 6 min 0 s (b) 3 min 60 s (c) 6 min 30 s (d) 7 min 0 s
3. 3.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
4. 4.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 4 min 70 s (b) 8 min 50 s (c) 7 min 20 s (d) 7 min 50 s
5. 5.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 17 seconds. How many more seconds of video do you need?
7. 7.⏱️ Your video must be 120 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
8. 8.⏱️ A video is 380 seconds long. How long is that in minutes and seconds? (a) 6 min 20 s (b) 3 min 80 s (c) 6 min 50 s (d) 7 min 20 s
9. 9.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
10. 10.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the sum of the clips (c) the shortest clip (d) the longest clip
11. 11.⏱️ A video has three clips of 26, 44 and 9 seconds. How long is the video (in seconds)?
12. 12.⏱️ How many seconds is 3 minutes 35 seconds?
13. 13.⏱️ A video has three clips of 53, 38 and 36 seconds. How long is the video (in seconds)?
14. 14.⏱️ A video has three clips of 15, 20 and 41 seconds. How long is the video (in seconds)?
15. 15.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
16. 16.⏱️ Your video must be 120 seconds long. Your clips add up to 42 seconds. How many more seconds of video do you need?
17. 17.⏱️ A 63-second clip is sped up to 3× speed. How long does it last now (in seconds)?
18. 18.⏱️ A video is 310 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 3 min 10 s (c) 5 min 40 s (d) 6 min 10 s
19. 19.⏱️ How many seconds is 1 minute 16 seconds?
20. 20.⏱️ How many seconds is 9 minutes 27 seconds?
21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 29 seconds. How many more seconds of video do you need?
22. 22.⏱️ How many seconds is 2 minutes 18 seconds?
23. 23.⏱️ A video has three clips of 48, 13 and 14 seconds. How long is the video (in seconds)?
24. 24.⏱️ A video has three clips of 56, 33 and 30 seconds. How long is the video (in seconds)?
25. 25.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
26. 26.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 30 (d) 100
27. 27.⏱️ A video is 340 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 3 min 40 s (c) 5 min 40 s (d) 6 min 40 s
28. 28.⏱️ A 100-second clip is sped up to 4× speed. How long does it last now (in seconds)?
29. 29.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
30. 30.⏱️ A video has three clips of 12, 34 and 51 seconds. How long is the video (in seconds)?
31. 31.⏱️ Your video must be 180 seconds long. Your clips add up to 155 seconds. How many more seconds of video do you need?
32. 32.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 5 min 80 s (b) 9 min 40 s (c) 10 min 40 s (d) 9 min 10 s
33. 33.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ Your video must be 120 seconds long. Your clips add up to 46 seconds. How many more seconds of video do you need?
35. 35.⏱️ A video has three clips of 57, 5 and 35 seconds. How long is the video (in seconds)?
36. 36.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
37. 37.⏱️ How many seconds is 7 minutes 7 seconds?
38. 38.⏱️ A video has three clips of 28, 49 and 8 seconds. How long is the video (in seconds)?
39. 39.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
40. 40.⏱️ A video is 355 seconds long. How long is that in minutes and seconds? (a) 3 min 55 s (b) 5 min 55 s (c) 6 min 55 s (d) 5 min 25 s

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