Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 42 · 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 155 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 35 s (c) 1 min 55 s (d) 2 min 35 s
2. 2.⏱️ A 10-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
3. 3.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
4. 4.⏱️ A video has three clips of 57, 50 and 33 seconds. How long is the video (in seconds)?
5. 5.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
6. 6.⏱️ A video has three clips of 39, 35 and 26 seconds. How long is the video (in seconds)?
7. 7.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
8. 8.⏱️ Your video must be 120 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
9. 9.⏱️ Your video must be 60 seconds long. Your clips add up to 45 seconds. How many more seconds of video do you need?
10. 10.⏱️ A video has three clips of 55, 59 and 6 seconds. How long is the video (in seconds)?
11. 11.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
12. 12.⏱️ A video has three clips of 31, 53 and 12 seconds. How long is the video (in seconds)?
13. 13.⏱️ Your video must be 90 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
14. 14.⏱️ A 48-second clip is sped up to 2× speed. How long does it last now (in seconds)?
15. 15.⏱️ How many seconds are in 1 minute? (a) 10 (b) 100 (c) 30 (d) 60
16. 16.⏱️ How many seconds is 7 minutes 11 seconds?
17. 17.⏱️ A video has three clips of 57, 19 and 54 seconds. How long is the video (in seconds)?
18. 18.⏱️ A video has three clips of 45, 45 and 60 seconds. How long is the video (in seconds)?
19. 19.⏱️ How many seconds is 1 minute 18 seconds?
20. 20.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 10 min 10 s (c) 9 min 10 s (d) 9 min 40 s
21. 21.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
22. 22.⏱️ Your video must be 60 seconds long. Your clips add up to 33 seconds. How many more seconds of video do you need?
23. 23.⏱️ A video has three clips of 46, 16 and 55 seconds. How long is the video (in seconds)?
24. 24.⏱️ Your video must be 60 seconds long. Your clips add up to 38 seconds. How many more seconds of video do you need?
25. 25.⏱️ A video has three clips of 23, 55 and 19 seconds. How long is the video (in seconds)?
26. 26.⏱️ How many seconds is 8 minutes 23 seconds?
27. 27.⏱️ How many seconds is 6 minutes 6 seconds?
28. 28.⏱️ How many seconds is 5 minutes 32 seconds?
29. 29.⏱️ A video has three clips of 54, 39 and 60 seconds. How long is the video (in seconds)?
30. 30.⏱️ A video has three clips of 36, 29 and 29 seconds. How long is the video (in seconds)?
31. 31.⏱️ When you put clips one after another, the video length is … (a) the longest clip (b) always 1 minute (c) the sum of the clips (d) the shortest clip
32. 32.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 9 min 25 s (b) 8 min 55 s (c) 5 min 5 s (d) 8 min 25 s
34. 34.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 9 min 50 s (b) 9 min 20 s (c) 10 min 50 s (d) 5 min 90 s
35. 35.⏱️ A 4-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
36. 36.⏱️ A video is 440 seconds long. How long is that in minutes and seconds? (a) 7 min 50 s (b) 8 min 20 s (c) 7 min 20 s (d) 4 min 40 s
37. 37.⏱️ A video is 290 seconds long. How long is that in minutes and seconds? (a) 5 min 50 s (b) 4 min 20 s (c) 4 min 50 s (d) 2 min 90 s
38. 38.⏱️ A video has three clips of 44, 57 and 37 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video has three clips of 8, 15 and 18 seconds. How long is the video (in seconds)?
40. 40.⏱️ A video is 360 seconds long. How long is that in minutes and seconds? (a) 6 min 0 s (b) 6 min 30 s (c) 3 min 60 s (d) 7 min 0 s

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