Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 144 · 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 video is 210 seconds long. How long is that in minutes and seconds? (a) 2 min 10 s (b) 3 min 0 s (c) 4 min 30 s (d) 3 min 30 s
2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) twice as long (d) the same length
3. 3.⏱️ Your video must be 120 seconds long. Your clips add up to 37 seconds. How many more seconds of video do you need?
4. 4.⏱️ A video has three clips of 51, 31 and 54 seconds. How long is the video (in seconds)?
5. 5.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
6. 6.⏱️ A video has three clips of 29, 12 and 14 seconds. How long is the video (in seconds)?
7. 7.⏱️ A 108-second clip is sped up to 3× speed. How long does it last now (in seconds)?
8. 8.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 1 min 30 s (c) 1 min 0 s (d) 3 min 0 s
9. 9.⏱️ A video has three clips of 9, 25 and 6 seconds. How long is the video (in seconds)?
10. 10.⏱️ A video is 345 seconds long. How long is that in minutes and seconds? (a) 3 min 45 s (b) 5 min 45 s (c) 6 min 45 s (d) 5 min 15 s
11. 11.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) always 1 minute (c) the shortest clip (d) the longest clip
12. 12.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 9 min 5 s (b) 5 min 75 s (c) 10 min 35 s (d) 9 min 35 s
13. 13.⏱️ A 54-second clip is sped up to 3× speed. How long does it last now (in seconds)?
14. 14.⏱️ Your video must be 180 seconds long. Your clips add up to 111 seconds. How many more seconds of video do you need?
15. 15.⏱️ How many seconds is 4 minutes 28 seconds?
16. 16.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 8 min 10 s (b) 7 min 40 s (c) 4 min 30 s (d) 7 min 10 s
17. 17.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 100 (d) 60
18. 18.⏱️ A video has three clips of 11, 34 and 24 seconds. How long is the video (in seconds)?
19. 19.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
20. 20.⏱️ A 48-second clip is sped up to 3× speed. How long does it last now (in seconds)?
21. 21.⏱️ How many seconds is 9 minutes 10 seconds?
22. 22.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
23. 23.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
24. 24.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 1 min 85 s (b) 3 min 35 s (c) 4 min 5 s (d) 3 min 5 s
25. 25.⏱️ A video is 270 seconds long. How long is that in minutes and seconds? (a) 5 min 30 s (b) 2 min 70 s (c) 4 min 0 s (d) 4 min 30 s
26. 26.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
27. 27.⏱️ How many seconds is 7 minutes 47 seconds?
28. 28.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
30. 30.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
31. 31.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
32. 32.⏱️ How many seconds is 3 minutes 13 seconds?
33. 33.⏱️ A video has three clips of 26, 37 and 36 seconds. How long is the video (in seconds)?
34. 34.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
35. 35.⏱️ A video is 235 seconds long. How long is that in minutes and seconds? (a) 2 min 35 s (b) 4 min 55 s (c) 3 min 55 s (d) 3 min 25 s
36. 36.⏱️ A video has three clips of 15, 24 and 32 seconds. How long is the video (in seconds)?
37. 37.⏱️ A video is 540 seconds long. How long is that in minutes and seconds? (a) 9 min 0 s (b) 9 min 30 s (c) 10 min 0 s (d) 5 min 40 s
38. 38.⏱️ A video has three clips of 10, 54 and 50 seconds. How long is the video (in seconds)?
39. 39.⏱️ How many seconds is 3 minutes 56 seconds?
40. 40.⏱️ How many seconds is 1 minute 24 seconds?

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