Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 232 · 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.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 10 (d) 100
2. 2.⏱️ Your video must be 90 seconds long. Your clips add up to 75 seconds. How many more seconds of video do you need?
3. 3.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 2 min 0 s (c) 1 min 30 s (d) 1 min 0 s
4. 4.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
5. 5.⏱️ 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
6. 6.⏱️ Your video must be 120 seconds long. Your clips add up to 7 seconds. How many more seconds of video do you need?
7. 7.⏱️ A video has three clips of 53, 52 and 8 seconds. How long is the video (in seconds)?
8. 8.⏱️ How many seconds is 5 minutes 56 seconds?
9. 9.⏱️ A 36-second clip is sped up to 2× speed. How long does it last now (in seconds)?
10. 10.⏱️ A video has three clips of 26, 20 and 31 seconds. How long is the video (in seconds)?
11. 11.⏱️ How many seconds is 3 minutes 11 seconds?
12. 12.⏱️ A video has three clips of 20, 41 and 31 seconds. How long is the video (in seconds)?
13. 13.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) silent (d) the same length
14. 14.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 2 min 45 s (b) 2 min 15 s (c) 3 min 15 s (d) 1 min 35 s
15. 15.⏱️ Your video must be 60 seconds long. Your clips add up to 32 seconds. How many more seconds of video do you need?
16. 16.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
17. 17.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
18. 18.⏱️ A 64-second clip is sped up to 2× speed. How long does it last now (in seconds)?
19. 19.⏱️ A video is 490 seconds long. How long is that in minutes and seconds? (a) 8 min 40 s (b) 8 min 10 s (c) 4 min 90 s (d) 9 min 10 s
20. 20.⏱️ A video has three clips of 36, 35 and 41 seconds. How long is the video (in seconds)?
21. 21.⏱️ A video has three clips of 33, 55 and 23 seconds. How long is the video (in seconds)?
22. 22.⏱️ A video has three clips of 31, 5 and 27 seconds. How long is the video (in seconds)?
23. 23.⏱️ 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
24. 24.⏱️ A video is 275 seconds long. How long is that in minutes and seconds? (a) 2 min 75 s (b) 4 min 5 s (c) 4 min 35 s (d) 5 min 35 s
25. 25.⏱️ A video is 75 seconds long. How long is that in minutes and seconds? (a) 1 min 15 s (b) 3 min 15 s (c) 1 min 45 s (d) 2 min 15 s
26. 26.⏱️ How many seconds is 2 minutes 23 seconds?
27. 27.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 8 min 20 s (b) 8 min 50 s (c) 5 min 30 s (d) 9 min 50 s
28. 28.⏱️ A video has three clips of 39, 20 and 25 seconds. How long is the video (in seconds)?
29. 29.⏱️ How many seconds is 7 minutes 21 seconds?
30. 30.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
31. 31.⏱️ A video is 335 seconds long. How long is that in minutes and seconds? (a) 3 min 35 s (b) 6 min 35 s (c) 5 min 5 s (d) 5 min 35 s
32. 32.⏱️ A 24-second clip is sped up to 2× speed. How long does it last now (in seconds)?
33. 33.⏱️ A video is 590 seconds long. How long is that in minutes and seconds? (a) 9 min 50 s (b) 5 min 90 s (c) 9 min 20 s (d) 10 min 50 s
34. 34.⏱️ A video is 110 seconds long. How long is that in minutes and seconds? (a) 1 min 10 s (b) 2 min 50 s (c) 1 min 20 s (d) 1 min 50 s
35. 35.⏱️ How many seconds is 9 minutes 29 seconds?
36. 36.⏱️ A 30-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
37. 37.⏱️ Your video must be 60 seconds long. Your clips add up to 9 seconds. How many more seconds of video do you need?
38. 38.⏱️ A video has three clips of 35, 28 and 35 seconds. How long is the video (in seconds)?
39. 39.⏱️ Your video must be 180 seconds long. Your clips add up to 96 seconds. How many more seconds of video do you need?
40. 40.⏱️ A video is 480 seconds long. How long is that in minutes and seconds? (a) 4 min 80 s (b) 8 min 30 s (c) 9 min 0 s (d) 8 min 0 s

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