Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 6 · 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.⏱️ Your video must be 120 seconds long. Your clips add up to 13 seconds. How many more seconds of video do you need?
2. 2.⏱️ How many seconds are in 1 minute? (a) 10 (b) 30 (c) 60 (d) 100
3. 3.⏱️ Your video must be 90 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
4. 4.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) always 1 minute (c) the sum of the clips (d) the longest clip
5. 5.⏱️ A 23-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
6. 6.⏱️ Your video must be 90 seconds long. Your clips add up to 85 seconds. How many more seconds of video do you need?
7. 7.⏱️ A 12-second clip is sped up to 2× speed. How long does it last now (in seconds)?
8. 8.⏱️ A video is 185 seconds long. How long is that in minutes and seconds? (a) 4 min 5 s (b) 3 min 5 s (c) 3 min 35 s (d) 1 min 85 s
9. 9.⏱️ A video is 340 seconds long. How long is that in minutes and seconds? (a) 5 min 10 s (b) 5 min 40 s (c) 6 min 40 s (d) 3 min 40 s
10. 10.⏱️ A video has three clips of 29, 15 and 60 seconds. How long is the video (in seconds)?
11. 11.⏱️ A video is 205 seconds long. How long is that in minutes and seconds? (a) 2 min 5 s (b) 3 min 55 s (c) 4 min 25 s (d) 3 min 25 s
12. 12.⏱️ A video is 215 seconds long. How long is that in minutes and seconds? (a) 3 min 5 s (b) 2 min 15 s (c) 4 min 35 s (d) 3 min 35 s
13. 13.⏱️ A 116-second clip is sped up to 4× speed. How long does it last now (in seconds)?
14. 14.⏱️ How many seconds is 2 minutes 42 seconds?
15. 15.⏱️ How many seconds is 2 minutes 33 seconds?
16. 16.⏱️ How many seconds is 1 minute 30 seconds?
17. 17.⏱️ How many seconds is 2 minutes 53 seconds?
18. 18.⏱️ A 128-second clip is sped up to 4× speed. How long does it last now (in seconds)?
19. 19.⏱️ Speeding a clip up to 2× makes it … (a) twice as long (b) half as long (c) silent (d) the same length
20. 20.⏱️ A 22-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
21. 21.⏱️ Your video must be 60 seconds long. Your clips add up to 44 seconds. How many more seconds of video do you need?
22. 22.⏱️ How many seconds is 7 minutes 59 seconds?
23. 23.⏱️ A video has three clips of 9, 57 and 23 seconds. How long is the video (in seconds)?
24. 24.⏱️ How many seconds is 2 minutes 31 seconds?
25. 25.⏱️ A 13-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
26. 26.⏱️ An 8-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
27. 27.⏱️ A video is 350 seconds long. How long is that in minutes and seconds? (a) 5 min 20 s (b) 3 min 50 s (c) 6 min 50 s (d) 5 min 50 s
28. 28.⏱️ How many seconds is 9 minutes 28 seconds?
29. 29.⏱️ A 75-second clip is sped up to 3× speed. How long does it last now (in 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 9-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
32. 32.⏱️ A video is 515 seconds long. How long is that in minutes and seconds? (a) 8 min 5 s (b) 9 min 35 s (c) 5 min 15 s (d) 8 min 35 s
33. 33.⏱️ A 15-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
34. 34.⏱️ A 76-second clip is sped up to 4× speed. How long does it last now (in seconds)?
35. 35.⏱️ A 72-second clip is sped up to 2× speed. How long does it last now (in seconds)?
36. 36.⏱️ How many seconds is 7 minutes 2 seconds?
37. 37.⏱️ A 46-second clip is sped up to 2× speed. How long does it last now (in seconds)?
38. 38.⏱️ A video is 365 seconds long. How long is that in minutes and seconds? (a) 3 min 65 s (b) 6 min 5 s (c) 6 min 35 s (d) 7 min 5 s
39. 39.⏱️ Your video must be 60 seconds long. Your clips add up to 35 seconds. How many more seconds of video do you need?
40. 40.⏱️ A video has three clips of 51, 7 and 13 seconds. How long is the video (in seconds)?

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