Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 125 · 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 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
2. 2.⏱️ How many seconds is 9 minutes 25 seconds?
3. 3.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
4. 4.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
5. 5.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
6. 6.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
7. 7.⏱️ How many seconds is 4 minutes 56 seconds?
8. 8.⏱️ An 80-second clip is sped up to 4× speed. How long does it last now (in seconds)?
9. 9.⏱️ How many seconds is 9 minutes 26 seconds?
10. 10.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 2 min 90 s (b) 4 min 50 s (c) 5 min 50 s (d) 4 min 20 s
11. 11.⏱️ Your video must be 90 seconds long. Your clips add up to 84 seconds. How many more seconds of video do you need?
12. 12.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
13. 13.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 3 min 50 s (c) 5 min 20 s (d) 6 min 50 s
14. 14.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 6 min 5 s (b) 7 min 5 s (c) 6 min 35 s (d) 3 min 65 s
15. 15.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
16. 16.⏱️ How many seconds are in 1 minute? (a) 100 (b) 10 (c) 60 (d) 30
17. 17.⏱️ Your video must be 60 seconds long. Your clips add up to 47 seconds. How many more seconds of video do you need?
18. 18.⏱️ How many seconds is 8 minutes 9 seconds?
19. 19.⏱️ A video has three clips of 5, 11 and 41 seconds. How long is the video (in seconds)?
20. 20.⏱️ Your video must be 120 seconds long. Your clips add up to 62 seconds. How many more seconds of video do you need?
21. 21.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
22. 22.⏱️ Your video must be 90 seconds long. Your clips add up to 26 seconds. How many more seconds of video do you need?
23. 23.⏱️ A video has three clips of 5, 37 and 57 seconds. How long is the video (in seconds)?
24. 24.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 6 min 45 s (b) 3 min 75 s (c) 6 min 15 s (d) 7 min 15 s
25. 25.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
26. 26.⏱️ Your video must be 120 seconds long. Your clips add up to 22 seconds. How many more seconds of video do you need?
27. 27.⏱️ How many seconds is 2 minutes 2 seconds?
28. 28.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 2 min 15 s (b) 1 min 35 s (c) 2 min 45 s (d) 3 min 15 s
29. 29.⏱️ Your video must be 60 seconds long. Your clips add up to 46 seconds. How many more seconds of video do you need?
30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
31. 31.⏱️ Your video must be 60 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
32. 32.⏱️ A video has three clips of 51, 44 and 5 seconds. How long is the video (in seconds)?
33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
34. 34.⏱️ A video has three clips of 7, 16 and 28 seconds. How long is the video (in seconds)?
35. 35.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
36. 36.⏱️ A 160-second clip is sped up to 4× speed. How long does it last now (in seconds)?
37. 37.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
38. 38.⏱️ How many seconds is 7 minutes 39 seconds?
39. 39.⏱️ How many seconds is 4 minutes 5 seconds?
40. 40.⏱️ Your video must be 120 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?

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