Video Editing Worksheet: Video Length

Animation and design lesson 21: Video length sums · Set 260 · 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 20-second clip is sped up to 2× speed. How long does it last now (in seconds)?
2. 2.⏱️ Your video must be 180 seconds long. Your clips add up to 58 seconds. How many more seconds of video do you need?
3. 3.⏱️ How many seconds is 7 minutes 32 seconds?
4. 4.⏱️ A video has three clips of 53, 28 and 36 seconds. How long is the video (in seconds)?
5. 5.⏱️ Your video must be 90 seconds long. Your clips add up to 58 seconds. How many more seconds of video do you need?
6. 6.⏱️ A video is 85 seconds long. How long is that in minutes and seconds? (a) 1 min 55 s (b) 1 min 25 s (c) 2 min 25 s (d) 3 min 25 s
7. 7.⏱️ Your video must be 90 seconds long. Your clips add up to 12 seconds. How many more seconds of video do you need?
8. 8.⏱️ How many seconds is 2 minutes 30 seconds?
9. 9.⏱️ Your video must be 180 seconds long. Your clips add up to 104 seconds. How many more seconds of video do you need?
10. 10.⏱️ How many seconds are in 1 minute? (a) 60 (b) 30 (c) 100 (d) 10
11. 11.⏱️ When you put clips one after another, the video length is … (a) the shortest clip (b) the longest clip (c) the sum of the clips (d) always 1 minute
12. 12.⏱️ How many seconds is 3 minutes 55 seconds?
13. 13.⏱️ A video is 90 seconds long. How long is that in minutes and seconds? (a) 1 min 30 s (b) 1 min 0 s (c) 2 min 30 s (d) 3 min 30 s
14. 14.⏱️ Speeding a clip up to 2× makes it … (a) the same length (b) half as long (c) twice as long (d) silent
15. 15.⏱️ Your video must be 90 seconds long. Your clips add up to 63 seconds. How many more seconds of video do you need?
16. 16.⏱️ Your video must be 180 seconds long. Your clips add up to 21 seconds. How many more seconds of video do you need?
17. 17.⏱️ A video is 190 seconds long. How long is that in minutes and seconds? (a) 3 min 40 s (b) 3 min 10 s (c) 4 min 10 s (d) 1 min 90 s
18. 18.⏱️ A 62-second clip is sped up to 2× speed. How long does it last now (in seconds)?
19. 19.⏱️ A video is 320 seconds long. How long is that in minutes and seconds? (a) 3 min 20 s (b) 5 min 20 s (c) 5 min 50 s (d) 6 min 20 s
20. 20.⏱️ A 36-second clip is sped up to 3× speed. How long does it last now (in seconds)?
21. 21.⏱️ Your video must be 90 seconds long. Your clips add up to 23 seconds. How many more seconds of video do you need?
22. 22.⏱️ A video is 530 seconds long. How long is that in minutes and seconds? (a) 9 min 50 s (b) 8 min 20 s (c) 8 min 50 s (d) 5 min 30 s
23. 23.⏱️ Your video must be 60 seconds long. Your clips add up to 55 seconds. How many more seconds of video do you need?
24. 24.⏱️ How many seconds is 3 minutes 14 seconds?
25. 25.⏱️ How many seconds is 1 minute 26 seconds?
26. 26.⏱️ A video is 400 seconds long. How long is that in minutes and seconds? (a) 4 min 0 s (b) 6 min 40 s (c) 7 min 40 s (d) 6 min 10 s
27. 27.⏱️ How many seconds is 8 minutes 9 seconds?
28. 28.⏱️ How many seconds is 1 minute 5 seconds?
29. 29.⏱️ Your video must be 180 seconds long. Your clips add up to 16 seconds. How many more seconds of video do you need?
30. 30.⏱️ A video has three clips of 15, 37 and 5 seconds. How long is the video (in seconds)?
31. 31.⏱️ A 22-second clip is sped up to 2× speed. How long does it last now (in seconds)?
32. 32.⏱️ Your video must be 60 seconds long. Your clips add up to 25 seconds. How many more seconds of video do you need?
33. 33.⏱️ Your video must be 120 seconds long. Your clips add up to 54 seconds. How many more seconds of video do you need?
34. 34.⏱️ A video has three clips of 29, 10 and 12 seconds. How long is the video (in seconds)?
35. 35.⏱️ A video is 570 seconds long. How long is that in minutes and seconds? (a) 5 min 70 s (b) 10 min 30 s (c) 9 min 0 s (d) 9 min 30 s
36. 36.⏱️ A video is 305 seconds long. How long is that in minutes and seconds? (a) 5 min 35 s (b) 6 min 5 s (c) 3 min 5 s (d) 5 min 5 s
37. 37.⏱️ A 3-second clip is slowed to half speed (slow motion). How long does it last now (in seconds)?
38. 38.⏱️ A video has three clips of 15, 57 and 31 seconds. How long is the video (in seconds)?
39. 39.⏱️ A video is 160 seconds long. How long is that in minutes and seconds? (a) 2 min 40 s (b) 1 min 60 s (c) 3 min 40 s (d) 2 min 10 s
40. 40.⏱️ How many seconds is 4 minutes 25 seconds?

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