Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 280 · 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 6-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
2. 2.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) twice as long (c) the same length (d) half as long
3. 3.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
4. 4.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
5. 5.⏱️ How many seconds is 8 minutes 34 seconds?
6. 6.⏱️ A 74-second clip is sped up to 2× speed. How long does it last now (in seconds)?
7. 7.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the shortest clip (c) the sum of the clips (d) the longest clip
8. 8.⏱️ A video has three clips of 25, 6 and 30 seconds. How long is the video (in seconds)?
9. 9.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 8 min 55 s (b) 4 min 75 s (c) 7 min 25 s (d) 7 min 55 s
10. 10.⏱️ A video has three clips of 6, 54 and 52 seconds. How long is the video (in seconds)?
11. 11.⏱️ A video has three clips of 10, 22 and 28 seconds. How long is the video (in seconds)?
12. 12.⏱️ Your video must be 180 seconds long. Your clips add up to 156 seconds. How many more seconds of video do you need?
13. 13.⏱️ Your video must be 60 seconds long. Your clips add up to 24 seconds. How many more seconds of video do you need?
14. 14.⏱️ A 100-second clip is sped up to 4× speed. How long does it last now (in seconds)?
15. 15.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
16. 16.⏱️ A video is 285 seconds long. How long is that in minutes and seconds? (a) 2 min 85 s (b) 4 min 15 s (c) 5 min 45 s (d) 4 min 45 s
17. 17.⏱️ A video has three clips of 20, 44 and 46 seconds. How long is the video (in seconds)?
18. 18.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
19. 19.⏱️ A 105-second clip is sped up to 3× speed. How long does it last now (in seconds)?
20. 20.⏱️ A video is 215 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 4 min 35 s (c) 3 min 5 s (d) 3 min 35 s
21. 21.⏱️ How many seconds is 3 minutes 14 seconds?
22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 11 seconds. How many more seconds of video do you need?
23. 23.⏱️ How many seconds is 2 minutes 37 seconds?
24. 24.⏱️ An 11-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
25. 25.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
26. 26.⏱️ A video is 100 seconds long. How long is that in minutes and seconds? (a) 1 min 10 s (b) 1 min 40 s (c) 2 min 40 s (d) 1 min 0 s
27. 27.⏱️ How many seconds is 7 minutes 53 seconds?
28. 28.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 2 min 30 s (b) 3 min 30 s (c) 1 min 0 s (d) 1 min 30 s
29. 29.⏱️ A 50-second clip is sped up to 2× speed. How long does it last now (in seconds)?
30. 30.⏱️ How many seconds is 8 minutes 47 seconds?
31. 31.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 7 min 25 s (b) 8 min 25 s (c) 4 min 45 s (d) 7 min 55 s
32. 32.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ A 25-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
35. 35.⏱️ A 45-second clip is sped up to 3× speed. How long does it last now (in seconds)?
36. 36.⏱️ How many seconds is 9 minutes 25 seconds?
37. 37.⏱️ How many seconds is 3 minutes 1 second?
38. 38.⏱️ Your video must be 120 seconds long. Your clips add up to 27 seconds. How many more seconds of video do you need?
39. 39.⏱️ How many seconds is 8 minutes 59 seconds?
40. 40.⏱️ A video has three clips of 54, 27 and 52 seconds. How long is the video (in seconds)?

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