Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 3 · 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) 30 (b) 100 (c) 60 (d) 10
2. 2.⏱️ A 14-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
3. 3.⏱️ A video has three clips of 8, 9 and 25 seconds. How long is the video (in seconds)?
4. 4.⏱️ A video is 510 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 8 min 30 s (c) 8 min 0 s (d) 9 min 30 s
5. 5.⏱️ A video is 295 seconds long. How long is that in minutes and seconds? (a) 4 min 25 s (b) 5 min 55 s (c) 4 min 55 s (d) 2 min 95 s
6. 6.⏱️ A video is 475 seconds long. How long is that in minutes and seconds? (a) 8 min 55 s (b) 4 min 75 s (c) 7 min 25 s (d) 7 min 55 s
7. 7.⏱️ A video has three clips of 27, 21 and 5 seconds. How long is the video (in seconds)?
8. 8.⏱️ Your video must be 180 seconds long. Your clips add up to 49 seconds. How many more seconds of video do you need?
9. 9.⏱️ How many seconds is 8 minutes 31 seconds?
10. 10.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the longest clip (c) the sum of the clips (d) the shortest clip
11. 11.⏱️ A 28-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 17, 5 and 32 seconds. How long is the video (in seconds)?
13. 13.⏱️ Your video must be 180 seconds long. Your clips add up to 133 seconds. How many more seconds of video do you need?
14. 14.⏱️ A video has three clips of 36, 15 and 26 seconds. How long is the video (in seconds)?
15. 15.⏱️ A video has three clips of 7, 22 and 7 seconds. How long is the video (in seconds)?
16. 16.⏱️ Speeding a clip up to 2× makes it … (a) silent (b) half as long (c) the same length (d) twice as long
17. 17.⏱️ A video has three clips of 38, 55 and 60 seconds. How long is the video (in seconds)?
18. 18.⏱️ How many seconds is 8 minutes 24 seconds?
19. 19.⏱️ A video is 445 seconds long. How long is that in minutes and seconds? (a) 7 min 25 s (b) 4 min 45 s (c) 8 min 25 s (d) 7 min 55 s
20. 20.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
21. 21.⏱️ A video is 485 seconds long. How long is that in minutes and seconds? (a) 8 min 35 s (b) 4 min 85 s (c) 8 min 5 s (d) 9 min 5 s
22. 22.⏱️ A video has three clips of 33, 23 and 18 seconds. How long is the video (in seconds)?
23. 23.⏱️ How many seconds is 5 minutes 30 seconds?
24. 24.⏱️ A video has three clips of 32, 50 and 46 seconds. How long is the video (in seconds)?
25. 25.⏱️ A 16-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
26. 26.⏱️ A video has three clips of 8, 43 and 13 seconds. How long is the video (in seconds)?
27. 27.⏱️ A video has three clips of 37, 44 and 11 seconds. How long is the video (in seconds)?
28. 28.⏱️ A 136-second clip is sped up to 4× speed. How long does it last now (in seconds)?
29. 29.⏱️ How many seconds is 7 minutes 2 seconds?
30. 30.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
31. 31.⏱️ A video is 120 seconds long. How long is that in minutes and seconds? (a) 2 min 0 s (b) 2 min 30 s (c) 3 min 0 s (d) 1 min 20 s
32. 32.⏱️ How many seconds is 2 minutes 55 seconds?
33. 33.⏱️ A video has three clips of 26, 21 and 26 seconds. How long is the video (in seconds)?
34. 34.⏱️ A video has three clips of 46, 30 and 12 seconds. How long is the video (in seconds)?
35. 35.⏱️ A video has three clips of 6, 55 and 47 seconds. How long is the video (in seconds)?
36. 36.⏱️ Your video must be 180 seconds long. Your clips add up to 54 seconds. How many more seconds of video do you need?
37. 37.⏱️ A video is 145 seconds long. How long is that in minutes and seconds? (a) 2 min 55 s (b) 3 min 25 s (c) 2 min 25 s (d) 1 min 45 s
38. 38.⏱️ A video has three clips of 32, 17 and 54 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video is 575 seconds long. How long is that in minutes and seconds? (a) 5 min 75 s (b) 10 min 35 s (c) 9 min 5 s (d) 9 min 35 s
40. 40.⏱️ How many seconds is 6 minutes 7 seconds?

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