Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 155 · 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 480 seconds long. How long is that in minutes and seconds? (a) 8 min 0 s (b) 4 min 80 s (c) 9 min 0 s (d) 8 min 30 s
2. 2.⏱️ A video is 100 seconds long. How long is that in minutes and seconds? (a) 1 min 40 s (b) 1 min 10 s (c) 1 min 0 s (d) 2 min 40 s
3. 3.⏱️ How many seconds are in 1 minute? (a) 30 (b) 100 (c) 60 (d) 10
4. 4.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
5. 5.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
6. 6.⏱️ How many seconds is 7 minutes 13 seconds?
7. 7.⏱️ A video has three clips of 30, 11 and 17 seconds. How long is the video (in seconds)?
8. 8.⏱️ A video is 455 seconds long. How long is that in minutes and seconds? (a) 7 min 35 s (b) 8 min 35 s (c) 4 min 55 s (d) 7 min 5 s
9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 91 seconds. How many more seconds of video do you need?
10. 10.⏱️ A 28-second clip is sped up to 2× speed. How long does it last now (in seconds)?
11. 11.⏱️ A video is 115 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 1 min 15 s (c) 1 min 55 s (d) 1 min 25 s
12. 12.⏱️ 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
13. 13.⏱️ A video is 405 seconds long. How long is that in minutes and seconds? (a) 7 min 45 s (b) 6 min 15 s (c) 6 min 45 s (d) 4 min 5 s
14. 14.⏱️ A video is 595 seconds long. How long is that in minutes and seconds? (a) 9 min 55 s (b) 10 min 55 s (c) 5 min 95 s (d) 9 min 25 s
15. 15.⏱️ How many seconds is 6 minutes 5 seconds?
16. 16.⏱️ An 88-second clip is sped up to 4× speed. How long does it last now (in seconds)?
17. 17.⏱️ How many seconds is 8 minutes 13 seconds?
18. 18.⏱️ A video is 80 seconds long. How long is that in minutes and seconds? (a) 1 min 50 s (b) 2 min 20 s (c) 1 min 20 s (d) 3 min 20 s
19. 19.⏱️ A video has three clips of 29, 45 and 52 seconds. How long is the video (in seconds)?
20. 20.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) silent (c) twice as long (d) half as long
21. 21.⏱️ A video is 255 seconds long. How long is that in minutes and seconds? (a) 4 min 45 s (b) 4 min 15 s (c) 5 min 15 s (d) 2 min 55 s
22. 22.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
23. 23.⏱️ Your video must be 90 seconds long. Your clips add up to 59 seconds. How many more seconds of video do you need?
24. 24.⏱️ A 28-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
25. 25.⏱️ A 54-second clip is sped up to 2× speed. How long does it last now (in seconds)?
26. 26.⏱️ How many seconds is 2 minutes 40 seconds?
27. 27.⏱️ A video is 395 seconds long. How long is that in minutes and seconds? (a) 7 min 35 s (b) 3 min 95 s (c) 6 min 5 s (d) 6 min 35 s
28. 28.⏱️ A 117-second clip is sped up to 3× speed. How long does it last now (in seconds)?
29. 29.⏱️ How many seconds is 1 minute 45 seconds?
30. 30.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
31. 31.⏱️ How many seconds is 7 minutes 5 seconds?
32. 32.⏱️ A video has three clips of 24, 29 and 32 seconds. How long is the video (in seconds)?
33. 33.⏱️ A 60-second clip is sped up to 3× speed. How long does it last now (in seconds)?
34. 34.⏱️ A video has three clips of 27, 20 and 19 seconds. How long is the video (in seconds)?
35. 35.⏱️ Your video must be 180 seconds long. Your clips add up to 15 seconds. How many more seconds of video do you need?
36. 36.⏱️ How many seconds is 5 minutes 17 seconds?
37. 37.⏱️ How many seconds is 6 minutes 15 seconds?
38. 38.⏱️ A video has three clips of 40, 30 and 47 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video is 125 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 25 s (c) 2 min 35 s (d) 2 min 5 s
40. 40.⏱️ An 80-second clip is sped up to 2× speed. How long does it last now (in seconds)?

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