Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 334 · 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) 100 (b) 30 (c) 60 (d) 10
2. 2.⏱️ A video is 210 seconds long. How long is that in minutes and seconds? (a) 3 min 0 s (b) 4 min 30 s (c) 3 min 30 s (d) 2 min 10 s
3. 3.⏱️ When you put clips one after another, the video length is … (a) the sum of the clips (b) the longest clip (c) the shortest clip (d) always 1 minute
4. 4.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 8 min 10 s (b) 4 min 30 s (c) 7 min 40 s (d) 7 min 10 s
5. 5.⏱️ A 21-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
6. 6.⏱️ A 76-second clip is sped up to 4× speed. How long does it last now (in seconds)?
7. 7.⏱️ Your video must be 180 seconds long. Your clips add up to 159 seconds. How many more seconds of video do you need?
8. 8.⏱️ How many seconds is 2 minutes 14 seconds?
9. 9.⏱️ A 29-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
10. 10.⏱️ A video has three clips of 14, 37 and 23 seconds. How long is the video (in seconds)?
11. 11.⏱️ A video is 400 seconds long. How long is that in minutes and seconds? (a) 6 min 10 s (b) 7 min 40 s (c) 4 min 0 s (d) 6 min 40 s
12. 12.⏱️ How many seconds is 8 minutes 18 seconds?
13. 13.⏱️ Your video must be 180 seconds long. Your clips add up to 61 seconds. How many more seconds of video do you need?
14. 14.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 8 min 5 s (b) 8 min 35 s (c) 9 min 35 s (d) 5 min 15 s
15. 15.⏱️ How many seconds is 3 minutes 50 seconds?
16. 16.⏱️ A video has three clips of 32, 40 and 59 seconds. How long is the video (in seconds)?
17. 17.⏱️ A video has three clips of 58, 56 and 13 seconds. How long is the video (in seconds)?
18. 18.⏱️ A video is 505 seconds long. How long is that in minutes and seconds? (a) 9 min 25 s (b) 8 min 25 s (c) 5 min 5 s (d) 8 min 55 s
19. 19.⏱️ A video is 200 seconds long. How long is that in minutes and seconds? (a) 3 min 50 s (b) 3 min 20 s (c) 4 min 20 s (d) 2 min 0 s
20. 20.⏱️ Your video must be 90 seconds long. Your clips add up to 63 seconds. How many more seconds of video do you need?
21. 21.⏱️ A video has three clips of 32, 53 and 14 seconds. How long is the video (in seconds)?
22. 22.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) the same length (c) half as long (d) twice as long
23. 23.⏱️ Your video must be 120 seconds long. Your clips add up to 74 seconds. How many more seconds of video do you need?
24. 24.⏱️ A 124-second clip is sped up to 4× speed. How long does it last now (in seconds)?
25. 25.⏱️ A 75-second clip is sped up to 3× speed. How long does it last now (in seconds)?
26. 26.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
27. 27.⏱️ Your video must be 60 seconds long. Your clips add up to 36 seconds. How many more seconds of video do you need?
28. 28.⏱️ A video has three clips of 55, 34 and 37 seconds. How long is the video (in seconds)?
29. 29.⏱️ How many seconds is 3 minutes 3 seconds?
30. 30.⏱️ A 7-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
31. 31.⏱️ How many seconds is 2 minutes 56 seconds?
32. 32.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
33. 33.⏱️ A video is 370 seconds long. How long is that in minutes and seconds? (a) 3 min 70 s (b) 7 min 10 s (c) 6 min 10 s (d) 6 min 40 s
34. 34.⏱️ A 90-second clip is sped up to 3× speed. How long does it last now (in seconds)?
35. 35.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 9 min 40 s (b) 9 min 10 s (c) 10 min 10 s (d) 5 min 50 s
36. 36.⏱️ A video has three clips of 35, 9 and 31 seconds. How long is the video (in seconds)?
37. 37.⏱️ A video has three clips of 60, 36 and 18 seconds. How long is the video (in seconds)?
38. 38.⏱️ A video is 470 seconds long. How long is that in minutes and seconds? (a) 7 min 50 s (b) 7 min 20 s (c) 4 min 70 s (d) 8 min 50 s
39. 39.⏱️ Your video must be 120 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
40. 40.⏱️ A 120-second clip is sped up to 4× speed. How long does it last now (in seconds)?

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