Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 245 · 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.⏱️ Your video must be 60 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
2. 2.⏱️ How many seconds is 1 minute 31 seconds?
3. 3.⏱️ A video is 70 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 2 min 10 s (c) 1 min 10 s (d) 1 min 40 s
4. 4.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 5 min 10 s (c) 4 min 40 s (d) 4 min 10 s
5. 5.⏱️ How many seconds are in 1 minute? (a) 10 (b) 60 (c) 100 (d) 30
6. 6.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
7. 7.⏱️ How many seconds is 3 minutes 11 seconds?
8. 8.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
9. 9.⏱️ How many seconds is 4 minutes 47 seconds?
10. 10.⏱️ A video has three clips of 24, 59 and 13 seconds. How long is the video (in seconds)?
11. 11.⏱️ A video has three clips of 10, 11 and 8 seconds. How long is the video (in seconds)?
12. 12.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) the same length (d) twice as long
13. 13.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
14. 14.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 5 min 15 s (c) 2 min 55 s (d) 4 min 45 s
15. 15.⏱️ How many seconds is 2 minutes 8 seconds?
16. 16.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 4 min 20 s (b) 2 min 90 s (c) 5 min 50 s (d) 4 min 50 s
17. 17.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
18. 18.⏱️ A video has three clips of 8, 54 and 44 seconds. How long is the video (in seconds)?
19. 19.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
20. 20.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 4 min 55 s (b) 3 min 25 s (c) 3 min 55 s (d) 2 min 35 s
21. 21.⏱️ 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
22. 22.⏱️ A video has three clips of 24, 57 and 32 seconds. How long is the video (in seconds)?
23. 23.⏱️ How many seconds is 4 minutes 51 seconds?
24. 24.⏱️ Your video must be 180 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
25. 25.⏱️ Your video must be 120 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
26. 26.⏱️ A video has three clips of 60, 25 and 37 seconds. How long is the video (in seconds)?
27. 27.⏱️ A video has three clips of 11, 26 and 14 seconds. How long is the video (in seconds)?
28. 28.⏱️ A video is 170 seconds long. How long is that in minutes and seconds? (a) 2 min 20 s (b) 1 min 70 s (c) 3 min 50 s (d) 2 min 50 s
29. 29.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
30. 30.⏱️ How many seconds is 8 minutes 50 seconds?
31. 31.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 8 min 0 s (b) 9 min 0 s (c) 4 min 80 s (d) 8 min 30 s
32. 32.⏱️ A 112-second clip is sped up to 4× speed. How long does it last now (in seconds)?
33. 33.⏱️ How many seconds is 6 minutes 36 seconds?
34. 34.⏱️ A video has three clips of 36, 42 and 54 seconds. How long is the video (in seconds)?
35. 35.⏱️ Your video must be 120 seconds long. Your clips add up to 71 seconds. How many more seconds of video do you need?
36. 36.⏱️ A 92-second clip is sped up to 4× speed. How long does it last now (in seconds)?
37. 37.⏱️ A video has three clips of 40, 10 and 55 seconds. How long is the video (in seconds)?
38. 38.⏱️ A video has three clips of 24, 32 and 29 seconds. How long is the video (in seconds)?
39. 39.⏱️ Your video must be 60 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
40. 40.⏱️ A video has three clips of 36, 15 and 41 seconds. How long is the video (in seconds)?

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