Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 213 · 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.⏱️ An 18-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
2. 2.⏱️ Your video must be 60 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
3. 3.⏱️ A video is 100 seconds long. How long is that in minutes and seconds? (a) 1 min 0 s (b) 1 min 40 s (c) 1 min 10 s (d) 2 min 40 s
4. 4.⏱️ How many seconds are in 1 minute? (a) 60 (b) 100 (c) 30 (d) 10
5. 5.⏱️ Your video must be 120 seconds long. Your clips add up to 6 seconds. How many more seconds of video do you need?
6. 6.⏱️ How many seconds is 9 minutes 31 seconds?
7. 7.⏱️ How many seconds is 2 minutes 3 seconds?
8. 8.⏱️ A video has three clips of 14, 51 and 32 seconds. How long is the video (in seconds)?
9. 9.⏱️ Your video must be 120 seconds long. Your clips add up to 39 seconds. How many more seconds of video do you need?
10. 10.⏱️ A video has three clips of 27, 33 and 30 seconds. How long is the video (in seconds)?
11. 11.⏱️ A video is 580 seconds long. How long is that in minutes and seconds? (a) 5 min 80 s (b) 10 min 40 s (c) 9 min 10 s (d) 9 min 40 s
12. 12.⏱️ A video has three clips of 19, 21 and 48 seconds. How long is the video (in seconds)?
13. 13.⏱️ Your video must be 120 seconds long. Your clips add up to 72 seconds. How many more seconds of video do you need?
14. 14.⏱️ A 51-second clip is sped up to 3× speed. How long does it last now (in seconds)?
15. 15.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
16. 16.⏱️ A 152-second clip is sped up to 4× speed. How long does it last now (in seconds)?
17. 17.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the sum of the clips (c) always 1 minute (d) the longest clip
18. 18.⏱️ How many seconds is 7 minutes 50 seconds?
19. 19.⏱️ A 5-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
20. 20.⏱️ A video has three clips of 30, 9 and 6 seconds. How long is the video (in seconds)?
21. 21.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) silent (c) half as long (d) the same length
22. 22.⏱️ A 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
23. 23.⏱️ A 64-second clip is sped up to 4× speed. How long does it last now (in seconds)?
24. 24.⏱️ A video has three clips of 58, 56 and 45 seconds. How long is the video (in seconds)?
25. 25.⏱️ A 19-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
26. 26.⏱️ How many seconds is 3 minutes 6 seconds?
27. 27.⏱️ A video has three clips of 41, 47 and 19 seconds. How long is the video (in seconds)?
28. 28.⏱️ A video is 425 seconds long. How long is that in minutes and seconds? (a) 7 min 35 s (b) 4 min 25 s (c) 8 min 5 s (d) 7 min 5 s
29. 29.⏱️ A video is 195 seconds long. How long is that in minutes and seconds? (a) 4 min 15 s (b) 1 min 95 s (c) 3 min 45 s (d) 3 min 15 s
30. 30.⏱️ How many seconds is 4 minutes 10 seconds?
31. 31.⏱️ How many seconds is 7 minutes 16 seconds?
32. 32.⏱️ A 104-second clip is sped up to 4× speed. How long does it last now (in seconds)?
33. 33.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
34. 34.⏱️ How many seconds is 8 minutes 2 seconds?
35. 35.⏱️ A 60-second clip is sped up to 3× speed. How long does it last now (in seconds)?
36. 36.⏱️ A video is 525 seconds long. How long is that in minutes and seconds? (a) 9 min 45 s (b) 8 min 15 s (c) 8 min 45 s (d) 5 min 25 s
37. 37.⏱️ How many seconds is 4 minutes 49 seconds?
38. 38.⏱️ A video has three clips of 22, 43 and 49 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video has three clips of 49, 42 and 59 seconds. How long is the video (in seconds)?
40. 40.⏱️ A 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?

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