Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 200 · 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 is 7 minutes 25 seconds?
2. 2.⏱️ A 17-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
3. 3.⏱️ 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
4. 4.⏱️ A 24-second clip is sped up to 3× speed. How long does it last now (in seconds)?
5. 5.⏱️ How many seconds is 8 minutes 10 seconds?
6. 6.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) the same length (c) half as long (d) silent
7. 7.⏱️ A 24-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
8. 8.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 10 (d) 100
9. 9.⏱️ A 60-second clip is sped up to 2× speed. How long does it last now (in seconds)?
10. 10.⏱️ When you put clips one after another, the video length is … (a) always 1 minute (b) the sum of the clips (c) the shortest clip (d) the longest clip
11. 11.⏱️ A video has three clips of 42, 51 and 39 seconds. How long is the video (in seconds)?
12. 12.⏱️ A video has three clips of 54, 8 and 13 seconds. How long is the video (in seconds)?
13. 13.⏱️ A video is 240 seconds long. How long is that in minutes and seconds? (a) 5 min 0 s (b) 4 min 30 s (c) 4 min 0 s (d) 2 min 40 s
14. 14.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
15. 15.⏱️ How many seconds is 6 minutes 1 second?
16. 16.⏱️ Your video must be 60 seconds long. Your clips add up to 8 seconds. How many more seconds of video do you need?
17. 17.⏱️ How many seconds is 7 minutes 4 seconds?
18. 18.⏱️ Your video must be 60 seconds long. Your clips add up to 19 seconds. How many more seconds of video do you need?
19. 19.⏱️ Your video must be 90 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
20. 20.⏱️ How many seconds is 8 minutes 41 seconds?
21. 21.⏱️ A video is 135 seconds long. How long is that in minutes and seconds? (a) 3 min 15 s (b) 2 min 45 s (c) 1 min 35 s (d) 2 min 15 s
22. 22.⏱️ Your video must be 60 seconds long. Your clips add up to 43 seconds. How many more seconds of video do you need?
23. 23.⏱️ Your video must be 180 seconds long. Your clips add up to 163 seconds. How many more seconds of video do you need?
24. 24.⏱️ How many seconds is 4 minutes 15 seconds?
25. 25.⏱️ A video is 550 seconds long. How long is that in minutes and seconds? (a) 10 min 10 s (b) 9 min 10 s (c) 5 min 50 s (d) 9 min 40 s
26. 26.⏱️ A video is 375 seconds long. How long is that in minutes and seconds? (a) 3 min 75 s (b) 7 min 15 s (c) 6 min 45 s (d) 6 min 15 s
27. 27.⏱️ A video has three clips of 13, 6 and 18 seconds. How long is the video (in seconds)?
28. 28.⏱️ Your video must be 90 seconds long. Your clips add up to 46 seconds. How many more seconds of video do you need?
29. 29.⏱️ How many seconds is 3 minutes 29 seconds?
30. 30.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
31. 31.⏱️ A video has three clips of 47, 49 and 7 seconds. How long is the video (in seconds)?
32. 32.⏱️ A 104-second clip is sped up to 4× speed. How long does it last now (in seconds)?
33. 33.⏱️ A video is 65 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 1 min 5 s (c) 2 min 5 s (d) 1 min 35 s
34. 34.⏱️ A video is 130 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 3 min 10 s (c) 2 min 10 s (d) 1 min 30 s
35. 35.⏱️ A 96-second clip is sped up to 4× speed. How long does it last now (in seconds)?
36. 36.⏱️ How many seconds is 3 minutes 19 seconds?
37. 37.⏱️ A video is 430 seconds long. How long is that in minutes and seconds? (a) 7 min 40 s (b) 4 min 30 s (c) 7 min 10 s (d) 8 min 10 s
38. 38.⏱️ A video is 60 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 1 min 30 s (c) 3 min 0 s (d) 2 min 0 s
39. 39.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
40. 40.⏱️ A video has three clips of 18, 30 and 7 seconds. How long is the video (in seconds)?

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