Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 294 · 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 180 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
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.⏱️ How many seconds is 4 minutes 32 seconds?
4. 4.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
5. 5.⏱️ A video is 495 seconds long. How long is that in minutes and seconds? (a) 8 min 15 s (b) 4 min 95 s (c) 9 min 15 s (d) 8 min 45 s
6. 6.⏱️ A video is 555 seconds long. How long is that in minutes and seconds? (a) 9 min 15 s (b) 9 min 45 s (c) 10 min 15 s (d) 5 min 55 s
7. 7.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 1 min 95 s (b) 3 min 45 s (c) 4 min 15 s (d) 3 min 15 s
8. 8.⏱️ A video has three clips of 35, 16 and 55 seconds. How long is the video (in seconds)?
9. 9.⏱️ A 68-second clip is sped up to 2× speed. How long does it last now (in seconds)?
10. 10.⏱️ Your video must be 180 seconds long. Your clips add up to 140 seconds. How many more seconds of video do you need?
11. 11.⏱️ How many seconds is 3 minutes 45 seconds?
12. 12.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the shortest clip (c) always 1 minute (d) the longest clip
13. 13.⏱️ A video has three clips of 16, 56 and 17 seconds. How long is the video (in seconds)?
14. 14.⏱️ A 52-second clip is sped up to 2× speed. How long does it last now (in seconds)?
15. 15.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 2 min 95 s (b) 5 min 55 s (c) 4 min 25 s (d) 4 min 55 s
16. 16.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
17. 17.⏱️ A video has three clips of 54, 15 and 11 seconds. How long is the video (in seconds)?
18. 18.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
19. 19.⏱️ A 45-second clip is sped up to 3× speed. How long does it last now (in seconds)?
20. 20.⏱️ How many seconds is 2 minutes 40 seconds?
21. 21.⏱️ How many seconds is 3 minutes 10 seconds?
22. 22.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
23. 23.⏱️ A video has three clips of 35, 15 and 21 seconds. How long is the video (in seconds)?
24. 24.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
25. 25.⏱️ How many seconds is 8 minutes 51 seconds?
26. 26.⏱️ Your video must be 180 seconds long. Your clips add up to 86 seconds. How many more seconds of video do you need?
27. 27.⏱️ A video has three clips of 58, 42 and 24 seconds. How long is the video (in seconds)?
28. 28.⏱️ A video is 545 seconds long. How long is that in minutes and seconds? (a) 5 min 45 s (b) 10 min 5 s (c) 9 min 35 s (d) 9 min 5 s
29. 29.⏱️ A video is 250 seconds long. How long is that in minutes and seconds? (a) 2 min 50 s (b) 4 min 10 s (c) 5 min 10 s (d) 4 min 40 s
30. 30.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 1 min 15 s (b) 1 min 25 s (c) 2 min 55 s (d) 1 min 55 s
31. 31.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
32. 32.⏱️ A video has three clips of 32, 51 and 18 seconds. How long is the video (in seconds)?
33. 33.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
34. 34.⏱️ A video has three clips of 5, 49 and 43 seconds. How long is the video (in seconds)?
35. 35.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 3 min 10 s (b) 2 min 40 s (c) 2 min 10 s (d) 1 min 30 s
36. 36.⏱️ A video is 165 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 3 min 45 s (c) 2 min 15 s (d) 1 min 65 s
37. 37.⏱️ A 24-second clip is sped up to 4× speed. How long does it last now (in seconds)?
38. 38.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
39. 39.⏱️ A video is 395 seconds long. How long is that in minutes and seconds? (a) 6 min 35 s (b) 7 min 35 s (c) 6 min 5 s (d) 3 min 95 s
40. 40.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?

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