Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 316 · 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 has three clips of 54, 27 and 5 seconds. How long is the video (in seconds)?
2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 65 seconds. How many more seconds of video do you need?
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.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) twice as long (d) half as long
5. 5.⏱️ A video is 585 seconds long. How long is that in minutes and seconds? (a) 10 min 45 s (b) 9 min 15 s (c) 9 min 45 s (d) 5 min 85 s
6. 6.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
7. 7.⏱️ A video has three clips of 59, 54 and 34 seconds. How long is the video (in seconds)?
8. 8.⏱️ How many seconds are in 1 minute? (a) 30 (b) 60 (c) 10 (d) 100
9. 9.⏱️ A 27-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
10. 10.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
11. 11.⏱️ A video has three clips of 52, 52 and 21 seconds. How long is the video (in seconds)?
12. 12.⏱️ A video has three clips of 6, 40 and 36 seconds. How long is the video (in seconds)?
13. 13.⏱️ A video is 65 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 5 s (c) 2 min 5 s (d) 1 min 35 s
14. 14.⏱️ A 27-second clip is sped up to 3× speed. How long does it last now (in seconds)?
15. 15.⏱️ Your video must be 90 seconds long. Your clips add up to 18 seconds. How many more seconds of video do you need?
16. 16.⏱️ A video has three clips of 57, 18 and 7 seconds. How long is the video (in seconds)?
17. 17.⏱️ A 21-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 57, 29 and 41 seconds. How long is the video (in seconds)?
19. 19.⏱️ How many seconds is 2 minutes 28 seconds?
20. 20.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
21. 21.⏱️ How many seconds is 5 minutes 30 seconds?
22. 22.⏱️ A video has three clips of 42, 60 and 9 seconds. How long is the video (in seconds)?
23. 23.⏱️ A video has three clips of 13, 37 and 30 seconds. How long is the video (in seconds)?
24. 24.⏱️ Your video must be 120 seconds long. Your clips add up to 73 seconds. How many more seconds of video do you need?
25. 25.⏱️ How many seconds is 9 minutes 47 seconds?
26. 26.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
27. 27.⏱️ A video is 425 seconds long. How long is that in minutes and seconds? (a) 8 min 5 s (b) 7 min 5 s (c) 7 min 35 s (d) 4 min 25 s
28. 28.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
29. 29.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
30. 30.⏱️ Your video must be 60 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
31. 31.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
32. 32.⏱️ A 32-second clip is sped up to 4× speed. How long does it last now (in seconds)?
33. 33.⏱️ How many seconds is 5 minutes 18 seconds?
34. 34.⏱️ How many seconds is 1 minute 18 seconds?
35. 35.⏱️ How many seconds is 5 minutes 24 seconds?
36. 36.⏱️ Your video must be 60 seconds long. Your clips add up to 14 seconds. How many more seconds of video do you need?
37. 37.⏱️ A video has three clips of 25, 13 and 54 seconds. How long is the video (in seconds)?
38. 38.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 4 min 30 s (b) 8 min 10 s (c) 7 min 40 s (d) 7 min 10 s
39. 39.⏱️ A video has three clips of 12, 18 and 5 seconds. How long is the video (in seconds)?
40. 40.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?

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